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[Bug 1514022] Re: System freeze


Did this issue start happening after an update/upgrade?  Was there a
prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.3 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:

Once testing of the upstream kernel is complete, please mark this bug as

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-wily/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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  System freeze

Status in linux package in Ubuntu:

Bug description:
  System freezes at random occasions with no recovery (tried ctrl alt F1, ctrl alt t, etc.) 
  No traces in the syslog.
  Fans keep running so system seems to be under load.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-17-generic 4.2.0-17.21
  ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
  Uname: Linux 4.2.0-17-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
   /dev/snd/pcmC0D0p:   thomas     3499 F...m pulseaudio
   /dev/snd/controlC0:  thomas     3499 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Nov  7 12:54:52 2015
  HibernationDevice: RESUME=UUID=ed1eaca8-c94e-4f78-974d-dc28348c9f3a
  InstallationDate: Installed on 2015-04-26 (194 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Hewlett-Packard HP EliteBook 8470p
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic root=UUID=39f2e8b4-3b7f-49fa-8e72-91650c69d50e ro quiet splash vt.handoff=7
   linux-restricted-modules-4.2.0-17-generic N/A
   linux-backports-modules-4.2.0-17-generic  N/A
   linux-firmware                            1.149.1
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: Upgraded to wily on 2015-11-03 (3 days ago)
  dmi.bios.date: 07/16/2013
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68ICF Ver. F.43
  dmi.board.name: 179B
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 42.36
  dmi.chassis.asset.tag: CNU342CNXN
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68ICFVer.F.43:bd07/16/2013:svnHewlett-Packard:pnHPEliteBook8470p:pvrA1029D1103:rvnHewlett-Packard:rn179B:rvrKBCVersion42.36:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 8470p
  dmi.product.version: A1029D1103
  dmi.sys.vendor: Hewlett-Packard

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