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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1225455

Title:
  WiFi with iwl4965 resetting every few minutes..

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu 12.04.3, kernel 3.2.0-53 64b SMP
  Every few minutes, the WiFi hangs and the kernel says:

  [28795.430080] iwl4965 0000:0c:00.0: Microcode SW error detected.  Restarting 0x82000000.
  [28795.430202] iwl4965 0000:0c:00.0: Loaded firmware version: 228.61.2.24
  [28795.430339] iwl4965 0000:0c:00.0: Start IWL Error Log Dump:
  [28795.430413] iwl4965 0000:0c:00.0: Status: 0x000213E4, count: 5
  [28795.430690] iwl4965 0000:0c:00.0: Desc                                  Time       data1      data2      line
  [28795.430820] iwl4965 0000:0c:00.0: SYSASSERT                    (0x0005) 0000002189 0x00000001 0x00000000 1384
  [28795.430943] iwl4965 0000:0c:00.0: pc      blink1  blink2  ilink1  ilink2  hcmd
  [28795.431040] iwl4965 0000:0c:00.0: 0x021AC 0x0217A 0x021C2 0x006DA 0x00000 0x423004E
  [28795.431140] iwl4965 0000:0c:00.0: FH register values:
  [28795.431244] iwl4965 0000:0c:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0b648500
  [28795.431375] iwl4965 0000:0c:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X00b83550
  [28795.431513] iwl4965 0000:0c:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X00000038
  [28795.431641] iwl4965 0000:0c:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819000
  [28795.431777] iwl4965 0000:0c:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X0000003c
  [28795.431910] iwl4965 0000:0c:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
  [28795.432084] iwl4965 0000:0c:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
  [28795.432227] iwl4965 0000:0c:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0002
  [28795.432367] iwl4965 0000:0c:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
  [28795.440091] iwl4965 0000:0c:00.0: Error sending TX power (-5)
  [306265.406488] iwl4965 0000:0c:00.0: Microcode SW error detected.  Restarting 0x82000000.
  [306265.406502] iwl4965 0000:0c:00.0: Loaded firmware version: 228.61.2.24
  [306265.406544] iwl4965 0000:0c:00.0: Start IWL Error Log Dump:
  [306265.406553] iwl4965 0000:0c:00.0: Status: 0x000213E4, count: 5
  [306265.407876] ieee80211 phy0: Hardware restart was requested

  I changed the card, problem still here;
  I tried an old(er) kernel I had in stock: 3.2.0-32-generic: the problem *totally* disappeared !

  Conclusion: always have an old kernel at hand..

  EDIT: The problem seems to have occured in 3.2.0-2x, and solved in 3.2.0-3x ..
  A possible regression ?


  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  xtof       3244 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf6dfc000 irq 45'
     Mixer name	: 'SigmaTel STAC9205'
     Components	: 'HDA:838476a0,102801f9,00100204'
     Controls      : 21
     Simple ctrls  : 12
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=ae89a937-8343-407c-836d-f87fc4240d8f
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
  MachineType: Dell Inc. Latitude D630
  MarkForUpload: True
  Package: linux (not installed)
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-32-generic root=UUID=36db8631-528d-47b2-8ae7-9aa1a0e5492b ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-32-generic N/A
   linux-backports-modules-3.2.0-32-generic  N/A
   linux-firmware                            1.79.6
  Tags:  precise
  Uname: Linux 3.2.0-32-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip fuse kismet plugdev sambashare sudo uucp
  dmi.bios.date: 11/24/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd11/24/2008:svnDellInc.:pnLatitudeD630:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude D630
  dmi.sys.vendor: Dell Inc.

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