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  1. Bug #1124040
  2. Activity log

Activity log for bug #1124040

Date Who What changed Old value New value Message
2013-02-13 12:00:32 Nikolaj Hansen bug added bug
2013-02-13 12:01:18 Nikolaj Hansen attachment added Intel Driver https://bugs.launchpad.net/ubuntu/+bug/1124040/+attachment/3526376/+files/e1000e-2.2.14.tar.gz
2013-02-13 12:18:25 Nikolaj Hansen tags kernel-bug
2013-02-13 12:18:39 Nikolaj Hansen description Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9 inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fc00::16a/64 Scope:Global inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2770 errors:0 dropped:0 overruns:0 frame:0 TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB) Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray description: Notebook product: 428449G () vendor: LENOVO version: ThinkPad W520 serial: R9E0BFA width: 64 bits capabilities: smbios-2.6 dmi-2.6 vsyscall32 configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109 *-core description: Motherboard product: 428449G vendor: LENOVO physical id: 0 version: Not Available serial: 1ZJLZ15Y15F slot: Not Available *-cpu description: CPU product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz vendor: Intel Corp. physical id: 1 bus info: cpu@0 version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz serial: Not Supported by CPU slot: CPU size: 800MHz capacity: 800MHz width: 64 bits clock: 100MHz capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq configuration: cores=4 enabledcores=4 threads=8 *-cache:0 description: L1 cache physical id: 2 slot: L1-Cache size: 64KiB capacity: 64KiB capabilities: synchronous internal write-through data *-cache:1 description: L2 cache physical id: 3 slot: L2-Cache size: 256KiB capacity: 256KiB capabilities: synchronous internal write-through data *-cache:2 description: L3 cache physical id: 4 slot: L3-Cache size: 8MiB capacity: 8MiB capabilities: synchronous internal write-back unified *-memory description: System Memory physical id: 5 slot: System board or motherboard size: 16GiB *-bank:0 description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns) product: M471B5273CH0-CH9 vendor: Samsung physical id: 0 serial: 0050048A slot: ChannelA-DIMM0 size: 4GiB width: 64 bits clock: 1333MHz (0.8ns) *-bank:1 description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns) product: CMSO4GX3M1A1333C9 vendor: AMI physical id: 1 serial: 00000000 slot: ChannelA-DIMM1 size: 4GiB width: 64 bits clock: 1333MHz (0.8ns) *-bank:2 description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns) product: M471B5273CH0-CH9 vendor: Samsung physical id: 2 serial: 00500492 slot: ChannelB-DIMM0 size: 4GiB width: 64 bits clock: 1333MHz (0.8ns) *-bank:3 description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns) product: CMSO4GX3M1A1333C9 vendor: AMI physical id: 3 serial: 00000000 slot: ChannelB-DIMM1 size: 4GiB width: 64 bits clock: 1333MHz (0.8ns) *-firmware description: BIOS vendor: LENOVO physical id: 13 version: 8BET60WW (1.40 ) date: 12/06/2012 size: 128KiB capacity: 8128KiB capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification *-pci description: Host bridge product: 2nd Generation Core Processor Family DRAM Controller vendor: Intel Corporation physical id: 100 bus info: pci@0000:00:00.0 version: 09 width: 32 bits clock: 33MHz *-pci:0 description: PCI bridge product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port vendor: Intel Corporation physical id: 1 bus info: pci@0000:00:01.0 version: 09 width: 32 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320) *-display description: VGA compatible controller product: GF106 [Quadro 2000M] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nvidia latency=0 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff *-multimedia description: Audio device product: GF106 High Definition Audio Controller vendor: NVIDIA Corporation physical id: 0.1 bus info: pci@0000:01:00.1 version: a1 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:17 memory:d6000000-d6003fff *-communication description: Communication controller product: 6 Series/C200 Series Chipset Family MEI Controller #1 vendor: Intel Corporation physical id: 16 bus info: pci@0000:00:16.0 version: 04 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=mei latency=0 resources: irq:51 memory:d8325000-d832500f *-network description: Ethernet interface product: 82579LM Gigabit Network Connection vendor: Intel Corporation physical id: 19 bus info: pci@0000:00:19.0 logical name: eth0 version: 04 serial: f0:de:f1:67:84:e9 size: 100Mbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32) *-usb:0 description: USB controller product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 vendor: Intel Corporation physical id: 1a bus info: pci@0000:00:1a.0 version: 04 width: 32 bits clock: 33MHz capabilities: pm debug ehci bus_master cap_list configuration: driver=ehci_hcd latency=0 resources: irq:16 memory:d832a000-d832a3ff *-multimedia description: Audio device product: 6 Series/C200 Series Chipset Family High Definition Audio Controller vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 04 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:53 memory:d8320000-d8323fff *-pci:1 description: PCI bridge product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1 vendor: Intel Corporation physical id: 1c bus info: pci@0000:00:1c.0 version: b4 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152) *-pci:2 description: PCI bridge product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2 vendor: Intel Corporation physical id: 1c.1 bus info: pci@0000:00:1c.1 version: b4 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:17 memory:d8200000-d82fffff *-network DISABLED description: Wireless interface product: Centrino Ultimate-N 6300 vendor: Intel Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: wlan0 version: 35 serial: 00:24:d7:c6:38:6c width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn resources: irq:52 memory:d8200000-d8201fff *-pci:3 description: PCI bridge product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4 vendor: Intel Corporation physical id: 1c.3 bus info: pci@0000:00:1c.3 version: b4 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608) *-pci:4 description: PCI bridge product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5 vendor: Intel Corporation physical id: 1c.4 bus info: pci@0000:00:1c.4 version: b4 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608) *-generic description: System peripheral product: MMC/SD Host Controller vendor: Ricoh Co Ltd physical id: 0 bus info: pci@0000:0d:00.0 version: 08 width: 32 bits clock: 33MHz capabilities: msi pm pciexpress bus_master cap_list configuration: driver=sdhci-pci latency=0 resources: irq:16 memory:d7201000-d72010ff *-firewire description: FireWire (IEEE 1394) product: R5C832 PCIe IEEE 1394 Controller vendor: Ricoh Co Ltd physical id: 0.3 bus info: pci@0000:0d:00.3 version: 04 width: 32 bits clock: 33MHz capabilities: msi pm pciexpress ohci bus_master cap_list configuration: driver=firewire_ohci latency=0 resources: irq:19 memory:d7200000-d72007ff *-pci:5 description: PCI bridge product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7 vendor: Intel Corporation physical id: 1c.6 bus info: pci@0000:00:1c.6 version: b4 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:18 memory:d7100000-d71fffff *-usb description: USB controller product: uPD720200 USB 3.0 Host Controller vendor: NEC Corporation physical id: 0 bus info: pci@0000:0e:00.0 version: 04 width: 64 bits clock: 33MHz capabilities: pm msi msix pciexpress xhci bus_master cap_list configuration: driver=xhci_hcd latency=0 resources: irq:18 memory:d7100000-d7101fff *-usb:1 description: USB controller product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 vendor: Intel Corporation physical id: 1d bus info: pci@0000:00:1d.0 version: 04 width: 32 bits clock: 33MHz capabilities: pm debug ehci bus_master cap_list configuration: driver=ehci_hcd latency=0 resources: irq:23 memory:d8329000-d83293ff *-isa description: ISA bridge product: QM67 Express Chipset Family LPC Controller vendor: Intel Corporation physical id: 1f bus info: pci@0000:00:1f.0 version: 04 width: 32 bits clock: 33MHz capabilities: isa bus_master cap_list configuration: latency=0 *-storage description: SATA controller product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller vendor: Intel Corporation physical id: 1f.2 bus info: pci@0000:00:1f.2 logical name: scsi0 logical name: scsi1 version: 04 width: 32 bits clock: 66MHz capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated configuration: driver=ahci latency=0 resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff *-disk description: ATA Disk product: INTEL SSDSC2MH25 physical id: 0 bus info: scsi@0:0.0.0 logical name: /dev/sda version: PWG4 serial: LNEL123400BG250DGN size: 232GiB (250GB) capabilities: partitioned partitioned:dos configuration: ansiversion=5 signature=000672ac *-volume:0 description: Linux swap / Solaris partition physical id: 1 bus info: scsi@0:0.0.0,1 logical name: /dev/sda1 capacity: 7628MiB capabilities: primary bootable nofs *-volume:1 description: Extended partition physical id: 2 bus info: scsi@0:0.0.0,2 logical name: /dev/sda2 size: 225GiB capacity: 225GiB capabilities: primary extended partitioned partitioned:extended *-logicalvolume:0 description: Linux filesystem partition physical id: 5 logical name: /dev/sda5 logical name: / capacity: 14GiB configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted *-logicalvolume:1 description: Linux filesystem partition physical id: 6 logical name: /dev/sda6 logical name: /var capacity: 14GiB configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted *-logicalvolume:2 description: Linux filesystem partition physical id: 7 logical name: /dev/sda7 logical name: /tmp capacity: 7628MiB configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted *-logicalvolume:3 description: Linux filesystem partition physical id: 8 logical name: /dev/sda8 logical name: /usr capacity: 74GiB configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted *-logicalvolume:4 description: Linux filesystem partition physical id: 9 logical name: /dev/sda9 logical name: /home capacity: 113GiB configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted *-cdrom description: DVD-RAM writer product: DVD-RAM UJ8A0A vendor: MATSHITA physical id: 1 bus info: scsi@1:0.0.0 logical name: /dev/cdrom logical name: /dev/cdrw logical name: /dev/dvd logical name: /dev/dvdrw logical name: /dev/sr0 version: SB02 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram configuration: ansiversion=5 status=nodisc *-serial UNCLAIMED description: SMBus product: 6 Series/C200 Series Chipset Family SMBus Controller vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 version: 04 width: 64 bits clock: 33MHz configuration: latency=0 resources: memory:d8324000-d83240ff ioport:efa0(size=32) *-battery product: 42T4801 vendor: Panasonic physical id: 1 slot: Rear capacity: 84240mWh configuration: voltage=10,8V *-network DISABLED description: Ethernet interface physical id: 2 logical name: usb0 serial: 02:80:37:ec:02:00 capabilities: ethernet physical configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes
2013-02-13 12:19:38 Nikolaj Hansen description Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. Firstly I suspected faulty networking equipment, but the problem persisted on other hardware. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes
2013-02-13 12:20:41 Ubuntu Foundations Team Bug Bot tags kernel-bug bot-comment kernel-bug
2013-02-13 12:55:42 Nikolaj Hansen description Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. Firstly I suspected faulty networking equipment, but the problem persisted on other hardware. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel NIC driver is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. Firstly I suspected faulty networking equipment, but the problem persisted on other hardware. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes
2013-02-13 13:04:57 Nikolaj Hansen affects ubuntu linux (Ubuntu)
2013-02-13 13:30:08 Brad Figg linux (Ubuntu): status New Incomplete
2013-02-13 13:30:10 Brad Figg tags bot-comment kernel-bug bot-comment kernel-bug precise
2013-02-13 13:55:38 Nikolaj Hansen tags bot-comment kernel-bug precise apport-collected bot-comment kernel-bug precise staging
2013-02-13 13:55:39 Nikolaj Hansen description Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel NIC driver is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. Firstly I suspected faulty networking equipment, but the problem persisted on other hardware. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel NIC driver is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. Firstly I suspected faulty networking equipment, but the problem persisted on other hardware. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: nikolaj 2516 F.... pulseaudio /dev/snd/controlC0: nikolaj 2516 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xd8320000 irq 53' Mixer name : 'Conexant CX20590' Components : 'HDA:14f1506e,17aa21cf,00100000 HDA:14f12c06,17aa2122,00100000' Controls : 20 Simple ctrls : 10 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xd6000000 irq 17' Mixer name : 'Nvidia GPU 11 HDMI/DP' Components : 'HDA:10de0011,10de0101,00100100' Controls : 24 Simple ctrls : 4 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown' Mixer name : 'ThinkPad EC (unknown)' Components : '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: LENOVO 428449G MarkForUpload: True NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=UUID=1077668b-a0a6-43e4-8c7d-1a57dd5d35bf ro nofb nomodeset noplymouth nosplash elevator=noop ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware 1.79.1 StagingDrivers: mei Tags: precise staging Uname: Linux 3.2.0-37-generic x86_64 UpgradeStatus: Upgraded to precise on 2012-05-11 (277 days ago) UserGroups: pkcs11 dmi.bios.date: 12/06/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 8BET60WW (1.40 ) dmi.board.asset.tag: Not Available dmi.board.name: 428449G dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8BET60WW(1.40):bd12/06/2012:svnLENOVO:pn428449G:pvrThinkPadW520:rvnLENOVO:rn428449G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 428449G dmi.product.version: ThinkPad W520 dmi.sys.vendor: LENOVO
2013-02-13 13:55:40 Nikolaj Hansen attachment added AcpiTables.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526481/+files/AcpiTables.txt
2013-02-13 13:55:42 Nikolaj Hansen attachment added AlsaDevices.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526482/+files/AlsaDevices.txt
2013-02-13 13:55:43 Nikolaj Hansen attachment added AplayDevices.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526483/+files/AplayDevices.txt
2013-02-13 13:55:44 Nikolaj Hansen attachment added BootDmesg.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526484/+files/BootDmesg.txt
2013-02-13 13:55:45 Nikolaj Hansen attachment added CRDA.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526485/+files/CRDA.txt
2013-02-13 13:55:46 Nikolaj Hansen attachment added Card0.Amixer.values.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526486/+files/Card0.Amixer.values.txt
2013-02-13 13:55:48 Nikolaj Hansen attachment added Card0.Codecs.codec.0.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526487/+files/Card0.Codecs.codec.0.txt
2013-02-13 13:55:49 Nikolaj Hansen attachment added Card0.Codecs.codec.1.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526488/+files/Card0.Codecs.codec.1.txt
2013-02-13 13:55:50 Nikolaj Hansen attachment added Card1.Amixer.values.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526489/+files/Card1.Amixer.values.txt
2013-02-13 13:55:52 Nikolaj Hansen attachment added Card1.Codecs.codec.0.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526490/+files/Card1.Codecs.codec.0.txt
2013-02-13 13:55:53 Nikolaj Hansen attachment added Card1.Codecs.codec.1.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526491/+files/Card1.Codecs.codec.1.txt
2013-02-13 13:55:55 Nikolaj Hansen attachment added Card1.Codecs.codec.2.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526492/+files/Card1.Codecs.codec.2.txt
2013-02-13 13:55:56 Nikolaj Hansen attachment added Card1.Codecs.codec.3.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526493/+files/Card1.Codecs.codec.3.txt
2013-02-13 13:55:57 Nikolaj Hansen attachment added CurrentDmesg.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526494/+files/CurrentDmesg.txt
2013-02-13 13:55:59 Nikolaj Hansen attachment added IwConfig.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526495/+files/IwConfig.txt
2013-02-13 13:56:01 Nikolaj Hansen attachment added Lspci.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526496/+files/Lspci.txt
2013-02-13 13:56:02 Nikolaj Hansen attachment added Lsusb.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526497/+files/Lsusb.txt
2013-02-13 13:56:04 Nikolaj Hansen attachment added PciMultimedia.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526498/+files/PciMultimedia.txt
2013-02-13 13:56:06 Nikolaj Hansen attachment added ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526499/+files/ProcCpuinfo.txt
2013-02-13 13:56:07 Nikolaj Hansen attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526500/+files/ProcEnviron.txt
2013-02-13 13:56:09 Nikolaj Hansen attachment added ProcInterrupts.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526501/+files/ProcInterrupts.txt
2013-02-13 13:56:11 Nikolaj Hansen attachment added ProcModules.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526502/+files/ProcModules.txt
2013-02-13 13:56:12 Nikolaj Hansen attachment added RfKill.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526503/+files/RfKill.txt
2013-02-13 13:56:13 Nikolaj Hansen attachment added UdevDb.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526504/+files/UdevDb.txt
2013-02-13 13:56:15 Nikolaj Hansen attachment added UdevLog.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526505/+files/UdevLog.txt
2013-02-13 13:56:17 Nikolaj Hansen attachment added WifiSyslog.txt https://bugs.launchpad.net/bugs/1124040/+attachment/3526506/+files/WifiSyslog.txt
2013-02-13 14:01:09 Nikolaj Hansen linux (Ubuntu): status Incomplete Confirmed
2013-02-13 16:29:13 Joseph Salisbury linux (Ubuntu): importance Undecided Medium
2013-02-13 16:29:36 Joseph Salisbury linux (Ubuntu): status Confirmed Incomplete
2013-06-13 04:17:23 Launchpad Janitor linux (Ubuntu): status Incomplete Expired
2013-08-10 14:58:11 Jorge marked as duplicate 1205843
2013-12-01 15:09:05 penalvch removed duplicate marker 1205843
2013-12-01 15:11:42 penalvch description Hi, I am using ubuntu 12.04 LTS. The Intel e1000e kernel NIC driver is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. But for sure I think this kernel has issues. Firstly I suspected faulty networking equipment, but the problem persisted on other hardware. I then tried to fetch this driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng And it immediately rectified the error. Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ uname -a Linux stevieray 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ ifconfig -a eth0 eth0 Link encap:Ethernet HWaddr f0:de:f1:67:84:e9           inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0           inet6 addr: fc00::16a/64 Scope:Global           inet6 addr: 2002:5cf6:10d7:0:f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fc00::f2de:f1ff:fe67:84e9/64 Scope:Global           inet6 addr: fe80::f2de:f1ff:fe67:84e9/64 Scope:Link           inet6 addr: 2002:5cf6:10d7:0:2872:9e31:aae7:6c7b/64 Scope:Global           inet6 addr: fc00::2872:9e31:aae7:6c7b/64 Scope:Global           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:2770 errors:0 dropped:0 overruns:0 frame:0           TX packets:2316 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1196930 (1.1 MB) TX bytes:368114 (368.1 KB)           Interrupt:20 Memory:d8300000-d8320000 nikolaj@stevieray:~/tmp/e1000e/e1000e-2.2.14/src$ lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [Quadro 2000M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) 0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08) 0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller (rev 04) 0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) stevieray     description: Notebook     product: 428449G ()     vendor: LENOVO     version: ThinkPad W520     serial: R9E0BFA     width: 64 bits     capabilities: smbios-2.6 dmi-2.6 vsyscall32     configuration: administrator_password=enabled chassis=notebook family=ThinkPad W520 power-on_password=disabled uuid=813701EE-0351-CB11-8A80-8256F678E109   *-core        description: Motherboard        product: 428449G        vendor: LENOVO        physical id: 0        version: Not Available        serial: 1ZJLZ15Y15F        slot: Not Available      *-cpu           description: CPU           product: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           vendor: Intel Corp.           physical id: 1           bus info: cpu@0           version: Intel(R) Core(TM) i7-2820QM CPU @ 2.30GHz           serial: Not Supported by CPU           slot: CPU           size: 800MHz           capacity: 800MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 2              slot: L1-Cache              size: 64KiB              capacity: 64KiB              capabilities: synchronous internal write-through data         *-cache:1              description: L2 cache              physical id: 3              slot: L2-Cache              size: 256KiB              capacity: 256KiB              capabilities: synchronous internal write-through data         *-cache:2              description: L3 cache              physical id: 4              slot: L3-Cache              size: 8MiB              capacity: 8MiB              capabilities: synchronous internal write-back unified      *-memory           description: System Memory           physical id: 5           slot: System board or motherboard           size: 16GiB         *-bank:0              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 0              serial: 0050048A              slot: ChannelA-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:1              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 1              serial: 00000000              slot: ChannelA-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:2              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: M471B5273CH0-CH9              vendor: Samsung              physical id: 2              serial: 00500492              slot: ChannelB-DIMM0              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)         *-bank:3              description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)              product: CMSO4GX3M1A1333C9              vendor: AMI              physical id: 3              serial: 00000000              slot: ChannelB-DIMM1              size: 4GiB              width: 64 bits              clock: 1333MHz (0.8ns)      *-firmware           description: BIOS           vendor: LENOVO           physical id: 13           version: 8BET60WW (1.40 )           date: 12/06/2012           size: 128KiB           capacity: 8128KiB           capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification      *-pci           description: Host bridge           product: 2nd Generation Core Processor Family DRAM Controller           vendor: Intel Corporation           physical id: 100           bus info: pci@0000:00:00.0           version: 09           width: 32 bits           clock: 33MHz         *-pci:0              description: PCI bridge              product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port              vendor: Intel Corporation              physical id: 1              bus info: pci@0000:00:01.0              version: 09              width: 32 bits              clock: 33MHz              capabilities: pci pm msi pciexpress normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:40 ioport:5000(size=4096) memory:d4000000-d60fffff ioport:c0000000(size=335544320)            *-display                 description: VGA compatible controller                 product: GF106 [Quadro 2000M]                 vendor: NVIDIA Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: a1                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom                 configuration: driver=nvidia latency=0                 resources: irq:16 memory:d4000000-d5ffffff memory:c0000000-cfffffff memory:d0000000-d3ffffff ioport:5000(size=128) memory:d6080000-d60fffff            *-multimedia                 description: Audio device                 product: GF106 High Definition Audio Controller                 vendor: NVIDIA Corporation                 physical id: 0.1                 bus info: pci@0000:01:00.1                 version: a1                 width: 32 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:17 memory:d6000000-d6003fff         *-communication              description: Communication controller              product: 6 Series/C200 Series Chipset Family MEI Controller #1              vendor: Intel Corporation              physical id: 16              bus info: pci@0000:00:16.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list              configuration: driver=mei latency=0              resources: irq:51 memory:d8325000-d832500f         *-network              description: Ethernet interface              product: 82579LM Gigabit Network Connection              vendor: Intel Corporation              physical id: 19              bus info: pci@0000:00:19.0              logical name: eth0              version: 04              serial: f0:de:f1:67:84:e9              size: 100Mbit/s              capacity: 1Gbit/s              width: 32 bits              clock: 33MHz              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.2.14-NAPI duplex=full firmware=0.13-3 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s              resources: irq:50 memory:d8300000-d831ffff memory:d832b000-d832bfff ioport:6040(size=32)         *-usb:0              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2              vendor: Intel Corporation              physical id: 1a              bus info: pci@0000:00:1a.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:16 memory:d832a000-d832a3ff         *-multimedia              description: Audio device              product: 6 Series/C200 Series Chipset Family High Definition Audio Controller              vendor: Intel Corporation              physical id: 1b              bus info: pci@0000:00:1b.0              version: 04              width: 64 bits              clock: 33MHz              capabilities: pm msi pciexpress bus_master cap_list              configuration: driver=snd_hda_intel latency=0              resources: irq:53 memory:d8320000-d8323fff         *-pci:1              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1              vendor: Intel Corporation              physical id: 1c              bus info: pci@0000:00:1c.0              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:2000(size=4096) memory:d8400000-d85fffff ioport:d8600000(size=2097152)         *-pci:2              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2              vendor: Intel Corporation              physical id: 1c.1              bus info: pci@0000:00:1c.1              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:17 memory:d8200000-d82fffff            *-network DISABLED                 description: Wireless interface                 product: Centrino Ultimate-N 6300                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:03:00.0                 logical name: wlan0                 version: 35                 serial: 00:24:d7:c6:38:6c                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-37-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn                 resources: irq:52 memory:d8200000-d8201fff         *-pci:3              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4              vendor: Intel Corporation              physical id: 1c.3              bus info: pci@0000:00:1c.3              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:19 ioport:4000(size=4096) memory:d7a00000-d81fffff ioport:d6100000(size=8388608)         *-pci:4              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5              vendor: Intel Corporation              physical id: 1c.4              bus info: pci@0000:00:1c.4              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:16 ioport:3000(size=4096) memory:d7200000-d79fffff ioport:d6900000(size=8388608)            *-generic                 description: System peripheral                 product: MMC/SD Host Controller                 vendor: Ricoh Co Ltd                 physical id: 0                 bus info: pci@0000:0d:00.0                 version: 08                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress bus_master cap_list                 configuration: driver=sdhci-pci latency=0                 resources: irq:16 memory:d7201000-d72010ff            *-firewire                 description: FireWire (IEEE 1394)                 product: R5C832 PCIe IEEE 1394 Controller                 vendor: Ricoh Co Ltd                 physical id: 0.3                 bus info: pci@0000:0d:00.3                 version: 04                 width: 32 bits                 clock: 33MHz                 capabilities: msi pm pciexpress ohci bus_master cap_list                 configuration: driver=firewire_ohci latency=0                 resources: irq:19 memory:d7200000-d72007ff         *-pci:5              description: PCI bridge              product: 6 Series/C200 Series Chipset Family PCI Express Root Port 7              vendor: Intel Corporation              physical id: 1c.6              bus info: pci@0000:00:1c.6              version: b4              width: 32 bits              clock: 33MHz              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:18 memory:d7100000-d71fffff            *-usb                 description: USB controller                 product: uPD720200 USB 3.0 Host Controller                 vendor: NEC Corporation                 physical id: 0                 bus info: pci@0000:0e:00.0                 version: 04                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi msix pciexpress xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:18 memory:d7100000-d7101fff         *-usb:1              description: USB controller              product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1              vendor: Intel Corporation              physical id: 1d              bus info: pci@0000:00:1d.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: pm debug ehci bus_master cap_list              configuration: driver=ehci_hcd latency=0              resources: irq:23 memory:d8329000-d83293ff         *-isa              description: ISA bridge              product: QM67 Express Chipset Family LPC Controller              vendor: Intel Corporation              physical id: 1f              bus info: pci@0000:00:1f.0              version: 04              width: 32 bits              clock: 33MHz              capabilities: isa bus_master cap_list              configuration: latency=0         *-storage              description: SATA controller              product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller              vendor: Intel Corporation              physical id: 1f.2              bus info: pci@0000:00:1f.2              logical name: scsi0              logical name: scsi1              version: 04              width: 32 bits              clock: 66MHz              capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated              configuration: driver=ahci latency=0              resources: irq:41 ioport:6068(size=8) ioport:6074(size=4) ioport:6060(size=8) ioport:6070(size=4) ioport:6020(size=32) memory:d8328000-d83287ff            *-disk                 description: ATA Disk                 product: INTEL SSDSC2MH25                 physical id: 0                 bus info: scsi@0:0.0.0                 logical name: /dev/sda                 version: PWG4                 serial: LNEL123400BG250DGN                 size: 232GiB (250GB)                 capabilities: partitioned partitioned:dos                 configuration: ansiversion=5 signature=000672ac               *-volume:0                    description: Linux swap / Solaris partition                    physical id: 1                    bus info: scsi@0:0.0.0,1                    logical name: /dev/sda1                    capacity: 7628MiB                    capabilities: primary bootable nofs               *-volume:1                    description: Extended partition                    physical id: 2                    bus info: scsi@0:0.0.0,2                    logical name: /dev/sda2                    size: 225GiB                    capacity: 225GiB                    capabilities: primary extended partitioned partitioned:extended                  *-logicalvolume:0                       description: Linux filesystem partition                       physical id: 5                       logical name: /dev/sda5                       logical name: /                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:1                       description: Linux filesystem partition                       physical id: 6                       logical name: /dev/sda6                       logical name: /var                       capacity: 14GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:2                       description: Linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /tmp                       capacity: 7628MiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:3                       description: Linux filesystem partition                       physical id: 8                       logical name: /dev/sda8                       logical name: /usr                       capacity: 74GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted                  *-logicalvolume:4                       description: Linux filesystem partition                       physical id: 9                       logical name: /dev/sda9                       logical name: /home                       capacity: 113GiB                       configuration: mount.fstype=ext4 mount.options=rw,noatime,user_xattr,acl,barrier=1,data=ordered state=mounted            *-cdrom                 description: DVD-RAM writer                 product: DVD-RAM UJ8A0A                 vendor: MATSHITA                 physical id: 1                 bus info: scsi@1:0.0.0                 logical name: /dev/cdrom                 logical name: /dev/cdrw                 logical name: /dev/dvd                 logical name: /dev/dvdrw                 logical name: /dev/sr0                 version: SB02                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram                 configuration: ansiversion=5 status=nodisc         *-serial UNCLAIMED              description: SMBus              product: 6 Series/C200 Series Chipset Family SMBus Controller              vendor: Intel Corporation              physical id: 1f.3              bus info: pci@0000:00:1f.3              version: 04              width: 64 bits              clock: 33MHz              configuration: latency=0              resources: memory:d8324000-d83240ff ioport:efa0(size=32)   *-battery        product: 42T4801        vendor: Panasonic        physical id: 1        slot: Rear        capacity: 84240mWh        configuration: voltage=10,8V   *-network DISABLED        description: Ethernet interface        physical id: 2        logical name: usb0        serial: 02:80:37:ec:02:00        capabilities: ethernet physical        configuration: broadcast=yes driver=cdc_ncm driverversion=04-Aug-2011 firmware=CDC NCM link=no multicast=yes --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: nikolaj 2516 F.... pulseaudio /dev/snd/controlC0: nikolaj 2516 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xd8320000 irq 53' Mixer name : 'Conexant CX20590' Components : 'HDA:14f1506e,17aa21cf,00100000 HDA:14f12c06,17aa2122,00100000' Controls : 20 Simple ctrls : 10 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xd6000000 irq 17' Mixer name : 'Nvidia GPU 11 HDMI/DP' Components : 'HDA:10de0011,10de0101,00100100' Controls : 24 Simple ctrls : 4 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown' Mixer name : 'ThinkPad EC (unknown)' Components : '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: LENOVO 428449G MarkForUpload: True NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=UUID=1077668b-a0a6-43e4-8c7d-1a57dd5d35bf ro nofb nomodeset noplymouth nosplash elevator=noop ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware 1.79.1 StagingDrivers: mei Tags: precise staging Uname: Linux 3.2.0-37-generic x86_64 UpgradeStatus: Upgraded to precise on 2012-05-11 (277 days ago) UserGroups: pkcs11 dmi.bios.date: 12/06/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 8BET60WW (1.40 ) dmi.board.asset.tag: Not Available dmi.board.name: 428449G dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8BET60WW(1.40):bd12/06/2012:svnLENOVO:pn428449G:pvrThinkPadW520:rvnLENOVO:rn428449G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 428449G dmi.product.version: ThinkPad W520 dmi.sys.vendor: LENOVO The Intel e1000e kernel NIC driver is constantly reconnecting to my network causing flowstops and errors. I do not know in which exact kernel the problem started since I do not use this laptop wired regularly. Firstly I suspected faulty networking equipment, but the problem persisted on other hardware. WORKAROUND: Fetch driver directly from Intel: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&ProdId=3003&lang=eng Error: Feb 13 12:04:52 stevieray kernel: [ 1451.580536] e1000e: eth0 NIC Link is Down Feb 13 12:04:53 stevieray kernel: [ 1453.229010] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:04:53 stevieray kernel: [ 1453.229024] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:04:53 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:01 stevieray CRON[3406]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Feb 13 12:05:14 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:14 stevieray kernel: [ 1473.312198] e1000e: eth0 NIC Link is Down Feb 13 12:05:15 stevieray kernel: [ 1474.944394] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:15 stevieray kernel: [ 1474.944409] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:15 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) Feb 13 12:05:27 stevieray NetworkManager[1088]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Feb 13 12:05:27 stevieray kernel: [ 1486.340811] e1000e: eth0 NIC Link is Down Feb 13 12:05:28 stevieray kernel: [ 1488.008923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Feb 13 12:05:28 stevieray kernel: [ 1488.008938] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Feb 13 12:05:28 stevieray NetworkManager[1088]: <info> (eth0): carrier now ON (device state 100) With the Intel Driver: [ 2214.353191] e1000e 0000:00:19.0: PCI INT A disabled [ 2824.335482] e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-NAPI [ 2824.335491] e1000e: Copyright(c) 1999 - 2012 Intel Corporation. [ 2824.335548] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 2824.335570] e1000e 0000:00:19.0: setting latency timer to 64 [ 2824.335753] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 2824.347221] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.578329] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) f0:de:f1:67:84:e9 [ 2824.578340] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection [ 2824.578405] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: 1000FF-0FF [ 2824.737160] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.840802] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2824.843896] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2824.845415] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 2867.226514] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [ 2867.226529] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [ 2867.229384] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices:  **** List of CAPTURE Hardware Devices ****  card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]    Subdevices: 1/1    Subdevice #0: subdevice #0 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC1: nikolaj 2516 F.... pulseaudio  /dev/snd/controlC0: nikolaj 2516 F.... pulseaudio Card0.Amixer.info:  Card hw:0 'PCH'/'HDA Intel PCH at 0xd8320000 irq 53'    Mixer name : 'Conexant CX20590'    Components : 'HDA:14f1506e,17aa21cf,00100000 HDA:14f12c06,17aa2122,00100000'    Controls : 20    Simple ctrls : 10 Card1.Amixer.info:  Card hw:1 'NVidia'/'HDA NVidia at 0xd6000000 irq 17'    Mixer name : 'Nvidia GPU 11 HDMI/DP'    Components : 'HDA:10de0011,10de0101,00100100'    Controls : 24    Simple ctrls : 4 Card29.Amixer.info:  Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'    Mixer name : 'ThinkPad EC (unknown)'    Components : ''    Controls : 1    Simple ctrls : 1 Card29.Amixer.values:  Simple mixer control 'Console',0    Capabilities: pswitch pswitch-joined penum    Playback channels: Mono    Mono: Playback [on] DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: LENOVO 428449G MarkForUpload: True NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=UUID=1077668b-a0a6-43e4-8c7d-1a57dd5d35bf ro nofb nomodeset noplymouth nosplash elevator=noop ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.2.0-37-generic N/A  linux-backports-modules-3.2.0-37-generic N/A  linux-firmware 1.79.1 StagingDrivers: mei Tags: precise staging Uname: Linux 3.2.0-37-generic x86_64 UpgradeStatus: Upgraded to precise on 2012-05-11 (277 days ago) UserGroups: pkcs11 dmi.bios.date: 12/06/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 8BET60WW (1.40 ) dmi.board.asset.tag: Not Available dmi.board.name: 428449G dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8BET60WW(1.40):bd12/06/2012:svnLENOVO:pn428449G:pvrThinkPadW520:rvnLENOVO:rn428449G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 428449G dmi.product.version: ThinkPad W520 dmi.sys.vendor: LENOVO
2013-12-01 15:13:23 penalvch tags apport-collected bot-comment kernel-bug precise staging apport-collected bios-outdated-1.42 bot-comment kernel-bug needs-upstream-testing precise regression-potential staging
2013-12-01 15:16:09 penalvch summary e1000e reconnecting in 12.04 LTS 8086:1502 [Lenovo ThinkPad W520] e1000e reconnecting in 12.04
2013-12-01 15:16:33 penalvch linux (Ubuntu): importance Medium Low
2013-12-01 15:16:33 penalvch linux (Ubuntu): status Expired Incomplete
2014-03-15 04:17:41 Launchpad Janitor linux (Ubuntu): status Incomplete Expired
2014-09-04 11:47:54 Thorsten Glaser bug added subscriber Thorsten Glaser