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[Launchpad Bug Tracker <1044340@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/1044340

Title:
  [Clevo M570RU] CPU stalls occur when not using mouse or keyboard

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  I noticed the problem when playing videos or music. When I don't
  constantly use the mouse or keyboard (such as continuously tapping on
  the Up key) the movie stops playing and the music starts repeating the
  same buffer (the characteristic computer hang sound). When I touch the
  mouse or keyboard again, the computer continues. In kern.log I found
  the following line:

  INFO: rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0,
  t=15603 jiffies)

  So I thought it might have something to do with that.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-29-generic 3.2.0-29.46
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  remco      2363 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf0f00000 irq 50'
     Mixer name	: 'Realtek ALC883'
     Components	: 'HDA:10ec0883,15580573,00100002 HDA:10573055,10573055,00100700'
     Controls      : 34
     Simple ctrls  : 21
  Date: Fri Aug 31 13:33:55 2012
  HibernationDevice: RESUME=UUID=df976fbf-53a8-441b-a0b3-10423455bf4b
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Clevo Co. M570RU
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic root=UUID=c9c13e7e-ba53-4bed-a64a-82d4569bc376 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-29-generic N/A
   linux-backports-modules-3.2.0-29-generic  N/A
   linux-firmware                            1.79
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/09/2008
  dmi.bios.vendor: Phoenix
  dmi.bios.version: SROSA001.86C.
  dmi.board.name: SANTA ROSA
  dmi.board.vendor: Clevo Co.
  dmi.board.version: Not Applicable
  dmi.chassis.type: 1
  dmi.modalias: dmi:bvnPhoenix:bvrSROSA001.86C.:bd01/09/2008:svnClevoCo.:pnM570RU:pvrCLEVOM570RU-1.00.08SL:rvnClevoCo.:rnSANTAROSA:rvrNotApplicable:cvn:ct1:cvr:
  dmi.product.name: M570RU
  dmi.product.version: CLEVO:M570RU-1.00.08SL
  dmi.sys.vendor: Clevo Co.

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