[WARNING: at /build/buildd/linux-3.0.0/net/sched/sch_generic.c:255 dev_watchdog] wired network connection problem since last update

[Hans Georg Zojer]

wired network gets disconnected/timesout/packetloss after a few minutes. I can trigger it mostly, when doing "ping www.google.at" and openen "http://www.hans-georg-zojer.at" (or other websites) in firefox. Or when loading severel websites at the same time. Or when connecting to FTP-Server with Nautilus and surfing with firefox. Problem was first detected during the night of 2011-11-11 to 2011-11-12. It seems to arise from update at night of 2011-11-11 to 2011-11-12. (Or correlated with stability problems with VirtualBox. Or correlated with cpufreq/indicator-cpufreq) Network-Card seems to work under Windows 7 without problem. Maybe timing problem in linux kernel?

07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)

linux:
  Installiert: (keine)
  Kandidat: 3.0.0.12.14
  Versionstabelle:
     3.0.0.12.14 0
        500 http://at.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages

[Fabio Marconi (fabiomarconi)]

[ 2548.272640] WARNING: at /build/buildd/linux-3.0.0/net/sched/sch_generic.c:255 dev_watchdog+0x25a/0x270()
[ 2548.272646] Hardware name: HP Pavilion dv7 Notebook PC
[ 2548.272651] NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out
[ 2548.272655] Modules linked in: bnep rfcomm bluetooth pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv speedstep_lib parport_pc ppdev binfmt_misc hp_wmi sparse_keymap snd_hda_codec_hdmi snd_hda_codec_idt joydev uvcvideo videodev v4l2_compat_ioctl32 snd_hda_intel arc4 snd_hda_codec snd_hwdep snd_pcm radeon snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq iwlagn i915 snd_timer ttm snd_seq_device mac80211 psmouse serio_raw snd drm_kms_helper rts_pstor(C) cfg80211 drm soundcore snd_page_alloc mei(C) wmi hp_accel i2c_algo_bit video lis3lv02d input_polldev lp parport usbhid hid ahci libahci xhci_hcd sdhci_pci r8169 sdhci
[ 2548.272759] Pid: 0, comm: swapper Tainted: G C 3.0.0-12-generic #20-Ubuntu
[ 2548.272764] Call Trace:
[ 2548.272768] <IRQ> [<ffffffff8105e83f>] warn_slowpath_common+0x7f/0xc0
[ 2548.272789] [<ffffffff81046914>] ? __enqueue_entity+0x84/0x90
[ 2548.272798] [<ffffffff8105e936>] warn_slowpath_fmt+0x46/0x50
[ 2548.272808] [<ffffffff814f6afa>] dev_watchdog+0x25a/0x270
[ 2548.272819] [<ffffffff81011593>] ? native_sched_clock+0x13/0x60
[ 2548.272829] [<ffffffff8107a270>] ? __queue_work+0x320/0x320
[ 2548.272836] [<ffffffff814f68a0>] ? qdisc_reset+0x50/0x50
[ 2548.272843] [<ffffffff814f68a0>] ? qdisc_reset+0x50/0x50
[ 2548.272852] [<ffffffff8106d596>] call_timer_fn+0x46/0x160
[ 2548.272859] [<ffffffff814f68a0>] ? qdisc_reset+0x50/0x50
[ 2548.272866] [<ffffffff8106eec2>] run_timer_softirq+0x132/0x2a0
[ 2548.272876] [<ffffffff81026d5d>] ? lapic_next_event+0x1d/0x30
[ 2548.272883] [<ffffffff81065f58>] __do_softirq+0xa8/0x210
[ 2548.272894] [<ffffffff8109388f>] ? tick_program_event+0x1f/0x30
[ 2548.272903] [<ffffffff815f34dc>] call_softirq+0x1c/0x30
[ 2548.272909] [<ffffffff8100c2d5>] do_softirq+0x65/0xa0
[ 2548.272916] [<ffffffff8106633e>] irq_exit+0x8e/0xb0
[ 2548.272924] [<ffffffff815f3e1e>] smp_apic_timer_interrupt+0x6e/0x99
[ 2548.272931] [<ffffffff815f2c93>] apic_timer_interrupt+0x13/0x20
[ 2548.272935] <EOI> [<ffffffff813496cb>] ? intel_idle+0xcb/0x120
[ 2548.272953] [<ffffffff813496ad>] ? intel_idle+0xad/0x120
[ 2548.272963] [<ffffffff814ab062>] cpuidle_idle_call+0xa2/0x1d0
[ 2548.272973] [<ffffffff8100920b>] cpu_idle+0xab/0x100
[ 2548.272984] [<ffffffff815b803e>] rest_init+0x72/0x74
[ 2548.272992] [<ffffffff81ad0c2b>] start_kernel+0x3d4/0x3df
[ 2548.273002] [<ffffffff81ad0388>] x86_64_start_reservations+0x132/0x136
[ 2548.273011] [<ffffffff81ad0140>] ? early_idt_handlers+0x140/0x140
[ 2548.273020] [<ffffffff81ad0459>] x86_64_start_kernel+0xcd/0xdc
[ 2548.273026] ---[ end trace 9916d464ac229a0d ]---
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Hans Georg Zojer (hgzojer)]

Short: Problem has gone away/disappeared.

Long:
This Problem did not appear on Windows, but also reproducible on Ubuntu 11.10 Live-CD (so the Linux-update could not have been responsible for this malfunction). But on the same night, when Linux update was, there was also a Windows 7 update. Some other websites with similar problems suggested disabling wake-on-lan, wake-on-key, but there was no setting in BIOS to activate/deactivate such feature (and network-boot was also disabled). But I disabled the VT-setting in BIOS (because BIOS-help said, Vanderpool Technology should be only enabled if required). After saving and rebooting, the problem was gone away on Live-CD and on Ubuntu-Installation. After reenabling VT-setting in BIOS, saving and rebooting, the network-card is still working. Maybe Windows-Update changed some system-BIOS-settings or networkcard-BIOS/firmware-settings which get lost after saving BIOS settings.

My system is: HP Pavilion dv7-6b02eg.
manufacture id: A1P56EA
Intel Core i7-2670QM /4x 2,20GHz, 8 GB DDR3-RAM
1x160 GB SSD, 1x500GB HDD, Cardr., 1x VGA, 1x HDMI
AMD® Radeon™ HD 6770M 2048 MB,1600x900 GlareTFT
1 GBit LAN, 2x USB, 2x USB3.0, WLAN b/g/n
6 Cell Akku, BD- Combo

[Joseph Salisbury (jsalisbury)]

Hans,

Are you now unable to reproduce the issue?

[Rhys Andersen (rhysla)]

I am experiencing this issue and can trigger it by downloading via bittorrent. if i limit the number of connections it seems to take longer to occur. I am running Ubuntu 11.10.

eth:
04:00.0 Ethernet controller: Atheros Communications AR8151 v2.0 Gigabit Ethernet (rev c0)

system:
Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz
ASRock H61M-U3S3
2 x 2GB DDR3-1333

syslog:
Dec 9 21:58:59 bruno-desktop NetworkManager[861]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds)
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404559] ------------[ cut here ]------------
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404581] WARNING: at /build/buildd/linux-3.0.0/net/sched/sch_generic.c:255 dev_watchdog+0x1e6/0x1f0()
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404585] Hardware name: To Be Filled By O.E.M.
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404587] NETDEV WATCHDOG: eth0 (atl1c): transmit queue 0 timed out
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404590] Modules linked in: snd_hrtimer rfcomm bnep bluetooth binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel ppdev snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi i915 snd_seq_midi_event snd_seq drm_kms_helper drm i2c_algo_bit video snd_timer snd_seq_device mei(C) snd parport_pc soundcore snd_page_alloc lp parport usbhid hid usb_storage uas atl1c xhci_hcd
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404642] Pid: 0, comm: kworker/0:0 Tainted: G C 3.0.0-13-generic-pae #22-Ubuntu
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404646] Call Trace:
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404660] [<c10503c2>] warn_slowpath_common+0x72/0xa0
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404665] [<c1478fa6>] ? dev_watchdog+0x1e6/0x1f0
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404668] [<c1478fa6>] ? dev_watchdog+0x1e6/0x1f0
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404673] [<c1050493>] warn_slowpath_fmt+0x33/0x40
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404677] [<c1478fa6>] dev_watchdog+0x1e6/0x1f0
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404686] [<c105d80f>] call_timer_fn+0x2f/0x110
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404691] [<c1478dc0>] ? qdisc_reset+0x40/0x40
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404696] [<c105ef0b>] run_timer_softirq+0xeb/0x210
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404699] [<c1478dc0>] ? qdisc_reset+0x40/0x40
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404705] [<c1056f10>] ? local_bh_enable_ip+0x90/0x90
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404709] [<c1056f91>] __do_softirq+0x81/0x1a0
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404713] [<c1056f10>] ? local_bh_enable_ip+0x90/0x90
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404717] <IRQ> [<c10572d6>] ? irq_exit+0x76/0xa0
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404727] [<c155d169>] ? smp_apic_timer_interrupt+0x59/0x88
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404734] [<c1555fb9>] ? apic_timer_interrupt+0x31/0x38
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404739] [<c105007b>] ? __stack_chk_fail+0x1b/0x20
Dec 9 21:58:59 bruno-desktop kernel: [ 1057.404747] [<c12e1827>] ? intel_idle+0xb7/0x110
Dec 9 21:58:...

[Roman Olesyuk (roman-olesyuk)]

Same issue here, but this time with my wireless 3G module Ericsson F5521gw on Lenovo Thinkpad X220 (4290RW1):

Syslog:
Feb 22 13:56:07 thinkpad kernel: [12846.261594] ------------[ cut here ]------------
Feb 22 13:56:07 thinkpad kernel: [12846.261615] WARNING: at /build/buildd/linux-3.0.0/net/sched/sch_generic.c:255 dev_watchdog+0x25a/0x270()
Feb 22 13:56:07 thinkpad kernel: [12846.261620] Hardware name: 4290RW1
Feb 22 13:56:07 thinkpad kernel: [12846.261625] NETDEV WATCHDOG: usb0 (cdc_ncm): transmit queue 0 timed out
Feb 22 13:56:07 thinkpad kernel: [12846.261629] Modules linked in: usb_storage uas hidp hid bnep rfcomm pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv parport_pc ppdev binfmt_misc btusb bluetooth dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant uvcvideo videodev v4l2_compat_ioctl32 cdc_ncm cdc_wdm usbnet cdc_acm thinkpad_acpi snd_seq_midi snd_rawmidi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi_event snd_seq psmouse serio_raw snd_timer snd_seq_device snd nvram soundcore snd_page_alloc sdhci_pci sdhci mei(C) lp parport i915 drm_kms_helper drm wmi i2c_algo_bit video ahci libahci xhci_hcd
Feb 22 13:56:07 thinkpad kernel: [12846.261716] Pid: 0, comm: kworker/0:1 Tainted: G C 3.0.0-16-generic #28-Ubuntu
Feb 22 13:56:07 thinkpad kernel: [12846.261718] Call Trace:
Feb 22 13:56:07 thinkpad kernel: [12846.261719] <IRQ> [<ffffffff8105e8cf>] warn_slowpath_common+0x7f/0xc0
Feb 22 13:56:07 thinkpad kernel: [12846.261725] [<ffffffff8105e9c6>] warn_slowpath_fmt+0x46/0x50
Feb 22 13:56:07 thinkpad kernel: [12846.261727] [<ffffffff8106fbb3>] ? mod_timer+0x143/0x2f0
Feb 22 13:56:07 thinkpad kernel: [12846.261730] [<ffffffff814fee4a>] dev_watchdog+0x25a/0x270
Feb 22 13:56:07 thinkpad kernel: [12846.261732] [<ffffffff81128ff0>] ? bdi_arm_supers_timer+0x50/0x50
Feb 22 13:56:07 thinkpad kernel: [12846.261734] [<ffffffff814febf0>] ? qdisc_reset+0x50/0x50
Feb 22 13:56:07 thinkpad kernel: [12846.261736] [<ffffffff814febf0>] ? qdisc_reset+0x50/0x50
Feb 22 13:56:07 thinkpad kernel: [12846.261739] [<ffffffff8106d706>] call_timer_fn+0x46/0x160
Feb 22 13:56:07 thinkpad kernel: [12846.261743] [<ffffffff812ef9dd>] ? rb_insert_color+0xad/0x150
Feb 22 13:56:07 thinkpad kernel: [12846.261745] [<ffffffff814febf0>] ? qdisc_reset+0x50/0x50
Feb 22 13:56:07 thinkpad kernel: [12846.261746] [<ffffffff8106f032>] run_timer_softirq+0x132/0x2a0
Feb 22 13:56:07 thinkpad kernel: [12846.261749] [<ffffffff810270cd>] ? lapic_next_event+0x1d/0x30
Feb 22 13:56:07 thinkpad kernel: [12846.261751] [<ffffffff810660c8>] __do_softirq+0xa8/0x210
Feb 22 13:56:07 thinkpad kernel: [12846.261753] [<ffffffff810939ff>] ? tick_program_event+0x1f/0x30
Feb 22 13:56:07 thinkpad kernel: [12846.261756] [<ffffffff815fbcdc>] call_softirq+0x1c/0x30
Feb 22 13:56:07 thinkpad kernel: [12846.261759] [<ffffffff8100c2d5>] do_softirq+0x65/0xa0
Feb 22 13:56:07 thinkpad kernel: [12846.261760] [<ffffffff810664ae>] irq_exit+0x8e/0xb0
Feb 22 13:56:07 thinkpad kernel: [12846.261762] [<ffffffff815fc61e>] smp_apic_timer_interrupt+0x6e/0x99
Feb 22 13:56:07 thinkpad kernel: [12846.261764] [<ffffffff815fb493>] apic_timer_interrupt+0x13/0x20
Feb 22 13:56:07 thinkpad kernel: [12...

[Oleg (jumpercc)]

the same for me

may be its accidental
but problem apears every time i'm booted from windows used on same machine
if i just pover on cold machime with ubuntu - i have no problems with network

i can fix network for couple of minutes using ip ro del/add commands:

jumper@jumper-home:~$ sudo ip ro del default && sudo ip ro del 192.168.0.0/24
jumper@jumper-home:~$ sudo ip ro add 192.168.0.0/24 dev eth0 src 192.168.0.175 && sudo ip ro add default via 192.168.0.1
jumper@jumper-home:~$ ping 192.168.0.1
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
From 192.168.0.175 icmp_seq=1 Destination Host Unreachable
From 192.168.0.175 icmp_seq=2 Destination Host Unreachable
From 192.168.0.175 icmp_seq=3 Destination Host Unreachable
From 192.168.0.175 icmp_seq=4 Destination Host Unreachable
From 192.168.0.175 icmp_seq=5 Destination Host Unreachable
From 192.168.0.175 icmp_seq=6 Destination Host Unreachable
From 192.168.0.175 icmp_seq=8 Destination Host Unreachable
From 192.168.0.175 icmp_seq=9 Destination Host Unreachable
64 bytes from 192.168.0.1: icmp_req=10 ttl=64 time=555 ms
64 bytes from 192.168.0.1: icmp_req=11 ttl=64 time=0.819 ms
64 bytes from 192.168.0.1: icmp_req=12 ttl=64 time=0.806 ms
64 bytes from 192.168.0.1: icmp_req=13 ttl=64 time=0.803 ms
64 bytes from 192.168.0.1: icmp_req=14 ttl=64 time=0.793 ms
64 bytes from 192.168.0.1: icmp_req=15 ttl=64 time=0.821 ms
64 bytes from 192.168.0.1: icmp_req=16 ttl=64 time=0.813 ms

dmesg stack:

[ 1038.210221] ------------[ cut here ]------------
[ 1038.210233] WARNING: at /build/buildd/linux-3.0.0/net/sched/sch_generic.c:255 dev_watchdog+0x1e6/0x1f0()
[ 1038.210236] Hardware name: Z68P-DS3
[ 1038.210238] NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out
[ 1038.210240] Modules linked in: binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek ppdev parport_pc nvidia(P) snd_seq_midi snd_rawmidi snd_hda_intel snd_hda_codec snd_seq_midi_event snd_hwdep snd_seq snd_pcm i915 snd_seq_device snd_timer drm_kms_helper snd drm soundcore snd_page_alloc i2c_algo_bit lp mei(C) parport video usbhid hid r8169
[ 1038.210272] Pid: 0, comm: swapper Tainted: P C 3.0.0-16-generic-pae #29-Ubuntu
[ 1038.210274] Call Trace:
[ 1038.210282] [<c1050722>] warn_slowpath_common+0x72/0xa0
[ 1038.210287] [<c1480916>] ? dev_watchdog+0x1e6/0x1f0
[ 1038.210291] [<c1480916>] ? dev_watchdog+0x1e6/0x1f0
[ 1038.210295] [<c10507f3>] warn_slowpath_fmt+0x33/0x40
[ 1038.210300] [<c1480916>] dev_watchdog+0x1e6/0x1f0
[ 1038.210305] [<c105dc6f>] call_timer_fn+0x2f/0x110
[ 1038.210311] [<c13801aa>] ? scsi_finish_command+0x9a/0xf0
[ 1038.210315] [<c1480730>] ? qdisc_reset+0x40/0x40
[ 1038.210319] [<c105f36b>] run_timer_softirq+0xeb/0x210
[ 1038.210323] [<c1388f28>] ? scsi_softirq_done+0x118/0x140
[ 1038.210561] [<f9a49340>] ? nv_kern_isr_bh+0x40/0x80 [nvidia]
[ 1038.210566] [<c1480730>] ? qdisc_reset+0x40/0x40
[ 1038.210570] [<c1057350>] ? local_bh_enable_ip+0x90/0x90
[ 1038.210575] [<c1057350>] ? local_bh_enable_ip+0x90/0x90
[ 1038.210578] [<c10573d1>] __do_softirq+0x81/0x1a0
[ 1038.210582] [<c1057350>] ? local_bh_enable_ip+0x90/0x90
[ 1038.210585] <IRQ> [<c1057716>] ? irq_exit+0x76/0xa0
[ 1038.210592] [<c1565329>]...

[penalvch (penalvch)]

Hans Georg Zojer, thank you for reporting this and helping make Ubuntu better. This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[Jaroslaw Sieminski (jaroslaw-sieminski)]

I'd subscribed to this bug while I had similar problems.
Now I want to share with you my findings that in my case similar problems came from broken network adapter.
Moveing into new NIC resolved them all. I really don't know if it's truth also in your case, but in mine it helped.

Jarek

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]