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[Launchpad Bug Tracker <1193460@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/1193460

Title:
  System becomes irresponsive at random

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Since a couple of weeks my system freezes at random on a daily basis.
  Usually I just have only a couple of freezes per year. So far I could
  not identify which package takes the shame and hope that someone else
  can read something useful out of the attached log files.

  All freezes are similar:
  The load average explodes up to values of 10 and higher, although the CPU load remains low.
  The most memory consuming processes are killed one after the other, although there are still 3-4GB out of 8GB available.
  A high disk activity starts, although no specific process seems to write a lot. I guess it's the kernel trying to flush dirty pages to increase the amount of available memory.
  It is possible to switch to the vt, but usually the log in times out due to the high system load and it is impossible to issue a command. So it is strictly speaking not a freeze, but the system does not recover from that state.

  At this point I also want to point out that the default disabling of
  Alt-backspace, Alt-Fx, sysrq and ulimit in Ubuntu do not come in handy
  in such situations ...

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image (not installed)
  ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
  Uname: Linux 3.8.0-23-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pia        2609 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  Date: Fri Jun 21 17:27:31 2013
  MachineType: LENOVO 2732BHG
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-23-generic root=UUID=9e71b62a-4787-4e61-b834-b098dbf6c53d ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-23-generic N/A
   linux-backports-modules-3.8.0-23-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-05-03 (49 days ago)
  dmi.bios.date: 09/16/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7YET78WW (3.08 )
  dmi.board.name: 2732BHG
  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:bvr7YET78WW(3.08):bd09/16/2009:svnLENOVO:pn2732BHG:pvrThinkPadR500:rvnLENOVO:rn2732BHG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2732BHG
  dmi.product.version: ThinkPad R500
  dmi.sys.vendor: LENOVO

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