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[Toufik <1221202@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-bug-reported-upstream

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https://bugs.launchpad.net/bugs/1221202

Title:
  iwlwifi crash with "Microcode SW error detected"

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  I have an intel 7260 wifi card (it is a dual band). I have had a **lot** of trouble connecting to my router (also dual band). I don't know how I did but I managed to connect to the 2.4GHz AP but it is not very stable. However, I've never managed to connect to the 5.5GHz AP while it is listed as available. By looking at dmesg, the driver is crashing:
  ...
  [   74.358662] wlan0: authenticate with a6:b1:e9:ae:61:a2
  [   74.359848] wlan0: send auth to a6:b1:e9:ae:61:a2 (try 1/3)
  [   74.360756] wlan0: authenticated
  [   74.364053] wlan0: associate with a6:b1:e9:ae:61:a2 (try 1/3)
  [   74.373879] iwlwifi 0000:01:00.0: Microcode SW error detected.  Restarting 0x2000000.
  ...

  Then the wifi is dead and I have to reboot.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-4-generic 3.11.0-4.9
  ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
  Uname: Linux 3.11.0-4-generic x86_64
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  francois   1871 F.... pulseaudio
   /dev/snd/controlC1:  francois   1871 F.... pulseaudio
  Date: Thu Sep  5 14:28:05 2013
  HibernationDevice: RESUME=UUID=336e37fb-47a2-406c-ad64-630659d38f70
  InstallationDate: Installed on 2013-07-30 (36 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130729)
  MachineType: Sony Corporation SVP1321C5E
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic root=UUID=fe28f457-7a8a-4185-866b-115aded2e40c ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-4-generic N/A
   linux-backports-modules-3.11.0-4-generic  N/A
   linux-firmware                            1.113
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/17/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R0270V7
  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:bvnAmericanMegatrendsInc.:bvrR0270V7:bd05/17/2013:svnSonyCorporation:pnSVP1321C5E:pvrC60C1VKQ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVP1321C5E
  dmi.product.version: C60C1VKQ
  dmi.sys.vendor: Sony Corporation

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