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[Olli Ries <1214931@xxxxxxxxxxxxxxxxxx>]

2 relevant oops within 1 session at 
Aug 22 23:36:47 minime kernel: [   62.273638] Oops: 0000 [#1] SMP 
Aug 22 23:36:48 minime kernel: [   62.498471] Oops: 0010 [#2] SMP 


** Attachment added: "kern.log"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1214931/+attachment/3784236/+files/kern.log

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Title:
  kernel oops in free_task

Status in “linux” package in Ubuntu:
  In Progress

Bug description:
  dist upgrade to Saucy on 8/21, running 3.11.0-3

  [    0.000000] Linux version 3.11.0-3-generic (buildd@roseapple) (gcc
  version 4.8.1 (Ubuntu/Linaro 4.8.1-9ubuntu1) ) #7-Ubuntu SMP Tue Aug
  20 15:21:58 UTC 2013 (Ubuntu 3.11.0-3.7-generic 3.11.0-rc6)

  systems works for a few minutes then stalls completely

  was able to get a dmesg (attached pic below) shortly before the hard
  freeze. Attached kern.log should have same information starting at at
  8:07:35

  other attachments were created via ubuntu-bug linux prior to the
  8:07:35 crash

  systems works fine on 
  root@minime:/var/log# uname -a
  Linux minime 3.10.0-6-generic #17-Ubuntu SMP Fri Jul 26 18:29:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-3-generic 3.11.0-3.7
  ProcVersionSignature: Ubuntu 3.11.0-3.7-generic 3.11.0-rc6
  Uname: Linux 3.11.0-3-generic x86_64
  ApportVersion: 2.12.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  lightdm    1609 F.... pulseaudio
   /dev/snd/controlC0:  lightdm    1609 F.... pulseaudio
  Date: Wed Aug 21 08:00:05 2013
  HibernationDevice: RESUME=UUID=8e954843-0e0e-415b-a54f-0c1185f5475e
  InstallationDate: Installed on 2013-06-13 (69 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: LENOVO 4286CTO
  MarkForUpload: True
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-3-generic root=UUID=a532432e-5fb3-45bf-8fb2-5b3aa286e005 ro i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-3-generic N/A
   linux-backports-modules-3.11.0-3-generic  N/A
   linux-firmware                            1.113
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/07/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET50WW (1.20 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4286CTO
  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:bvr8DET50WW(1.20):bd07/07/2011:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4286CTO
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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