atl1c: network get stuck randomly under high load

[Gionn]

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.

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

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.5kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. Please only remove that one tag and leave the other tags. 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.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc1-quantal/

[penalvch (penalvch)]

Gionn, could you please confirm this issue exists with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

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

[Gionn (giovanni.toraldo)]

I am currently using the 3.5 kernel offered in the linux-image-backports-lts package and have been working for months.

Thanks.

[Matthias Muthmann (mmuthmann)]

I am also seeing disconnects with the atl1c under load.
There is a related kernel bug:
https://bugzilla.kernel.org/show_bug.cgi?id=54021

Problem should be fixed on lasted git:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/net/ethernet/atheros/atl1c?id=7b70176421993866e616f1cbc4d0dd4054f1bf78

Please consider applying this patch to your kernel, since lan is not usable with this bug.

I am using kubuntu raring 64bit.