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[Bug 1032648] Re: iwlwifi stops working

 

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.

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https://bugs.launchpad.net/bugs/1032648

Title:
  iwlwifi stops working

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  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

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