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[Launchpad Bug Tracker <1397694@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/1397694

Title:
  System lockups with utopic kernel

Status in linux package in Ubuntu:
  Expired

Bug description:
  Since upgrading to utopic, I've been experiencing occasional system
  lockups - when this occurs, nothing at all is responsive including the
  mouse pointer and Alt-SysRq combinations.

  Lockups only occur infrequently - perhaps once every day or two days -
  so testing this is going to be slow and problematic.

  So far, rolling back to the trusty kernel seems to have fixed it, so
  it seems unlikely to be a hardware problem.

  I'm going to reboot into http://kernel.ubuntu.com/~kernel-
  ppa/mainline/v3.17.4-vivid/ now and run with that for a few days.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-25-generic 3.16.0-25.33
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  maxb       3916 F.... pulseaudio
   /dev/snd/controlC0:  maxb       3916 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Nov 30 15:32:28 2014
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=143e606d-b6a1-4350-af21-aa2f83f8d351
  InstallationDate: Installed on 2014-05-29 (185 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  IwConfig:
   eth0      no wireless extensions.
   
   virbr0    no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: Dell Inc. Precision T1700
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-25-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-25-generic N/A
   linux-backports-modules-3.16.0-25-generic  N/A
   linux-firmware                             1.138
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to utopic on 2014-11-02 (27 days ago)
  dmi.bios.date: 04/25/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A08
  dmi.board.name: 073MMW
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A02
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/25/2014:svnDellInc.:pnPrecisionT1700:pvr01:rvnDellInc.:rn073MMW:rvrA02:cvnDellInc.:ct6:cvr:
  dmi.product.name: Precision T1700
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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