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[Bug 1099487] Re: iwlwifi: Microcode SW error detected. Restarting 0x2000000

 

$sudo modprobe -r iwlmvm; sudo modprobe iwlmvm

is a temporary fix on ubuntu

$ lsmod |grep iwl
iwlmvm                161378  0 
iwlwifi               165675  1 iwlmvm
mac80211              597268  1 iwlmvm
cfg80211              480503  3 iwlwifi,mac80211,iwlmvm

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Title:
  iwlwifi: Microcode SW error detected.  Restarting 0x2000000

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  This appears to be related to the older bug #200509 on my Lenovo X230.

  Since Jan 4th, I'm seeing errors like:

  Jan  8 14:33:32 lystena kernel: [10462.742627] iwlwifi 0000:03:00.0:
  Microcode SW error detected.  Restarting 0x2000000.

  Running:

  $ sudo modprobe -r iwlwifi; sudo modprobe iwlwifi

  ...fixes the issue. Attached appears to be one of the first instances
  of the issue.

  Kernel upgrade I can see in my apt logs:

  Start-Date: 2012-12-01  07:43:21
  Commandline: aptdaemon role='role-commit-packages' sender=':1.1567'
  Install: linux-image-extra-3.5.0-19-generic:amd64 (3.5.0-19.30), linux-image-3.5.0-19-generic:amd64 (3.5.0-19.30)
  Upgrade: perl:amd64 (5.14.2-13, 5.14.2-13ubuntu0.1), perl-base:amd64 (5.14.2-13, 5.14.2-13ubuntu0.1), libboost-python1.49.0:amd64 (1.49.0-3.1ubuntu1, 1.49.0-3.1ubuntu1.1), perl-modules:amd64 (5.14.2-13, 5.14.2-13ubuntu0.1), libboost-date-time1.49.0:amd64 (1.49.0-3.1ubuntu1, 1.49.0-3.1ubuntu1.1), linux-image-generic:amd64 (3.5.0.18.21, 3.5.0.19.22), libperl5.14:amd64 (5.14.2-13, 5.14.2-13ubuntu0.1), linux-libc-dev:amd64 (3.5.0-18.29, 3.5.0-19.30)

  -21 kernel was installed on the 18th of December.

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