Comment 0 for bug 1036668

Hi,

since a few days I am using a FreeNAS server as home storage, and I noticed that often when I am trasferring large ISO via NFS, the network stop transmitting and receiving packets: I cannot ping any other host on the local network, and the system doesn't recognize even the unplugging of the ethernet cable (I tried to change switch port).

In the dmesg there isn't any error, but the unique way I've found to recover from this situation is to reload the kernel module.

04:00.0 Ethernet controller: Atheros Communications Inc. AR8131 Gigabit Ethernet (rev c0)
 Subsystem: Sony Corporation Device 9069
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin A routed to IRQ 45
 Region 0: Memory at db100000 (64-bit, non-prefetchable) [size=256K]
 Region 2: I/O ports at 4000 [size=128]
 Capabilities: <access denied>
 Kernel driver in use: atl1c
 Kernel modules: atl1c

eth0 Link encap:Ethernet HWaddr 54:42:49:##:##:##
          indirizzo inet:192.168.66.199 Bcast:192.168.66.255 Maschera:255.255.255.0
          indirizzo inet6: fe80::5642:49ff:fe87:bfa3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:520368 errors:0 dropped:0 overruns:0 frame:0
          TX packets:436742 errors:0 dropped:0 overruns:0 carrier:1
          collisioni:0 txqueuelen:1000
          Byte RX:477756288 (477.7 MB) Byte TX:413803935 (413.8 MB)
          Interrupt:45

Dmesg excerpt:

[ 1170.161410] nfs: server debos.local not responding, timed out
[ 1170.161428] nfs: server debos.local not responding, timed out
[ 1170.161434] nfs: server debos.local not responding, timed out
[ 1170.161440] nfs: server debos.local not responding, timed out
[ 1170.161446] nfs: server debos.local not responding, timed out

sudo modprobe -r atl1c
[ 1815.507078] atl1c 0000:04:00.0: PCI INT A disabled

sudo modprobe atl1c
[ 1817.585779] atl1c 0000:04:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 1817.585793] atl1c 0000:04:00.0: setting latency timer to 64
[ 1817.706976] atl1c 0000:04:00.0: version 1.0.1.0-NAPI
[ 1817.728007] atl1c 0000:04:00.0: irq 45 for MSI/MSI-X
[ 1817.786798] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1817.789431] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1819.363832] atl1c 0000:04:00.0: atl1c: eth0 NIC Link is Up<100 Mbps Full Duplex>
[ 1819.365024] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1830.099339] eth0: no IPv6 routers present

and NFS recover succesfully.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-29-generic 3.2.0-29.46
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC275 Analog [ALC275 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: scorp 2962 F.... pulseaudio
 /dev/snd/controlC1: scorp 2962 F.... pulseaudio
 /dev/snd/controlC0: scorp 2962 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xde100000 irq 44'
   Mixer name : 'Realtek ALC275'
   Components : 'HDA:10ec0275,104d4100,00100005'
   Controls : 19
   Simple ctrls : 11
Card1.Amixer.info:
 Card hw:1 'Speaker'/'USB Speaker at usb-0000:00:1d.0-1.2, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB0c76:160c'
   Controls : 2
   Simple ctrls : 1
Card2.Amixer.info:
 Card hw:2 'NVidia'/'HDA NVidia at 0xd3000000 irq 17'
   Mixer name : 'Nvidia GPU 0b HDMI/DP'
   Components : 'HDA:10de000b,104d4100,00100200'
   Controls : 24
   Simple ctrls : 4
Date: Tue Aug 14 15:36:02 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
MachineType: Sony Corporation VPCS13V9E
ProcEnviron:
 LC_CTYPE=it_IT.UTF-8
 TERM=xterm
 PATH=(custom, user)
 LANG=it_IT.UTF-8
 SHELL=/bin/zsh
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic root=UUID=cf9df1c2-5aa1-413b-835a-cbbe17b7b168 ro
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-29-generic N/A
 linux-backports-modules-3.2.0-29-generic N/A
 linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/21/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: R2100Q3
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnINSYDE:bvrR2100Q3:bd09/21/2010:svnSonyCorporation:pnVPCS13V9E:pvrC10504ZE:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCS13V9E
dmi.product.version: C10504ZE
dmi.sys.vendor: Sony Corporation