Public bug reported:

Computer crash on a regular basis (once per week) without any specific
action, sometime while doing office work, sometimes while IDLE during
the night.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-40-generic 3.2.0-40.64
ProcVersionSignature: Ubuntu 3.2.0-40.64-generic 3.2.40
Uname: Linux 3.2.0-40-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.2
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  franckg    1294 f.... lxpanel
                      franckg   22903 F.... notes2
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xe1a60000 irq 46'
   Mixer name   : 'Intel CougarPoint HDMI'
   Components   : 'HDA:10ec0269,1028047e,00100100 
HDA:80862805,80860101,00100000'
   Controls      : 33
   Simple ctrls  : 16
Date: Fri May 10 09:53:23 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=6e08b6cf-ce43-4441-adca-28bcb6690881
InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Release amd64 (20120423)
MachineType: Dell Inc. OptiPlex 990
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-40-generic 
root=UUID=9d2bccf5-5cbc-4e10-a8b5-a04a305807cd ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-40-generic N/A
 linux-backports-modules-3.2.0-40-generic  N/A
 linux-firmware                            1.79.1
RfKill:
 
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
 May 10 09:34:30 hutw5418 kernel: [ 1015.305342] [drm:gen6_sanitize_pm] *ERROR* 
Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 1b110000, was 
1b000000
 May 10 09:36:15 hutw5418 kernel: [ 1119.466065] [drm:gen6_sanitize_pm] *ERROR* 
Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 00110000, was 
1b110000
dmi.bios.date: 08/21/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A16
dmi.board.name: 0D6H9T
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA16:bd08/21/2012:svnDellInc.:pnOptiPlex990:pvr01:rvnDellInc.:rn0D6H9T:rvrA00:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 990
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise staging

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https://bugs.launchpad.net/bugs/1178444

Title:
  Kernel crash while IDLE

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