iwlwifi stops working

[Matthias Gehre]

Sometimes (multiple times a day), the wifi stops working. Network manager still shows connection, but no data is going in or out. Ping/DNS resolve fails. The last entries in dmesg are then:

[74632.047505] iwlwifi 0000:03:00.0: Queue 11 stuck for 2000 ms.
[74632.047513] iwlwifi 0000:03:00.0: Current read_ptr 205 write_ptr 97
[74632.047517] iwlwifi 0000:03:00.0: On demand firmware reload
[74632.047996] ieee80211 phy1: Hardware restart was requested
[74632.048103] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[74632.048272] iwlwifi 0000:03:00.0: Radio type=0x1-0x3-0x1

Reconnecting with networkmanager does not help. rmmod and modprobe of iwlwifi restores wifi (until it breaks again). This did not happen on oneiric.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-27-generic 3.2.0-27.43
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mgehre 2231 F.... pulseaudio
CRDA:
 country DE:
  (2400 - 2483 @ 40), (N/A, 20)
  (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
  (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
  (5470 - 5725 @ 40), (N/A, 26), DFS
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 45'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:14f15069,17aa218b,00100302 HDA:80862804,17aa21b5,00100000'
   Controls : 26
   Simple ctrls : 8
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6MHT43WW-1.18'
   Mixer name : 'ThinkPad EC 6MHT43WW-1.18'
   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]
Date: Fri Aug 3 15:58:58 2012
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: LENOVO 4349WJK
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-27-generic root=UUID=96a44232-23e2-496f-aa22-5671fa074c19 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-27-generic N/A
 linux-backports-modules-3.2.0-27-generic N/A
 linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to precise on 2012-03-31 (125 days ago)
dmi.bios.date: 10/26/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MET81WW (1.41 )
dmi.board.name: 4349WJK
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:bvr6MET81WW(1.41):bd10/26/2010:svnLENOVO:pn4349WJK:pvrThinkPadT510:rvnLENOVO:rn4349WJK:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4349WJK
dmi.product.version: ThinkPad T510
dmi.sys.vendor: LENOVO

[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/v3.5-quantal/

[Matthias Gehre (m-gehre)]

I installed the mainline kernel 3.5 and will report back.

[Matthias Gehre (m-gehre)]

I am running mainline kernel 3.5 since four days now and did not encounter any problems related to the bug description.

[penalvch (penalvch)]

Matthias Gehre, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.52). If you update to this, does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[Matthias Gehre (m-gehre)]

I updated the bios to 1.52 and (unfortunately) also my kernel some time ago and have not encountered the bug since.
So it's fixed, but I'm not clear what exactly fixed it.

[Launchpad Janitor (janitor)]

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