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[Bug 1588637] Re: iwlwifi: Microcode SW error detected. Restarting 0x2000000


Niklas Sombert, the next step is to fully commit bisect from kernel 3.19
to 4.4 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit

Also, the kernel release names are irrelevant for the purposes of

After the offending commit (not kernel version) has been identified,
then please mark this report Status Confirmed.

Thank you for your understanding.

Helpful bug reporting tips:

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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   iwlwifi: Microcode SW error detected. Restarting 0x2000000

Status in linux package in Ubuntu:

Bug description:
  My wifi won't work after I wake my laptop up from standby.

  This problem looks quite the same as #1099487 or #944271.

  But I experienced this bug on Xenial with 4.4.0-22-generic (amd64).

  A `sudo modprobe -r iwlwifi && sudo modprobe iwlwifi` doesn't solve
  the problem. (A reboot does.)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-22-generic 4.4.0-22.40
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
   /dev/snd/controlC1:  niklas     2175 F.... pulseaudio
   /dev/snd/controlC0:  niklas     2175 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Fri Jun  3 08:23:06 2016
  InstallationDate: Installed on 2015-12-11 (174 days ago)
  InstallationMedia: Kubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
   eth0      no wireless extensions.

   lo        no wireless extensions.

   lxcbr0    no wireless extensions.
  MachineType: LENOVO 20E8S00600
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=67485aa6-c665-4c53-bf41-328307d0cbf0 ro rootflags=subvol=@ quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/24/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JHET20WW (1.00 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: Intel powered classmate PC
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrJHET20WW(1.00):bd02/24/2015:svnLENOVO:pn20E8S00600:pvrThinkPad11e:rvnLENOVO:rnIntelpoweredclassmatePC:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20E8S00600
  dmi.product.version: ThinkPad 11e
  dmi.sys.vendor: LENOVO

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