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[Launchpad Bug Tracker <893413@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/893413

Title:
  machines halts for a short period of time at arbitrary intervals

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  The machine appears to halt at random intervals for random short
  amounts of time. In  the dmesg output there is sometimes several
  sometimes just one or a few back traces related to a missed
  ironlake_irq_handler. These backtraces don't coincide with each halt.

  The ui is affected by the halts in a variety of ways. Audio will skip,
  and replay sections of the file, though produce sound continuously.
  the mouse and keyboard are unresponsive. Sometimes a keypress will
  'stick' and produce a steam of the appropriate letter on the screen
  for the duration of the halt. Desktop effects will halt mid-
  transition.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-generic 3.0.0.13.15
  ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
  Uname: Linux 3.0.0-13-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  rburns     1625 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1620000 irq 49'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:14f1506e,17aa21d2,00100002 HDA:80862805,80860101,00100000'
     Controls      : 20
     Simple ctrls  : 8
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Tue Nov 22 08:16:19 2011
  HibernationDevice: RESUME=UUID=3300e485-29b5-4a69-9bbe-db1d01ab3509
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: LENOVO 4170CTO
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic root=UUID=da9806fd-0151-4846-bfa0-d781c2e7a146 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-13-generic N/A
   linux-backports-modules-3.0.0-13-generic  N/A
   linux-firmware                            1.60
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/15/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8CET48WW (1.28 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4170CTO
  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:bvr8CET48WW(1.28):bd08/15/2011:svnLENOVO:pn4170CTO:pvrThinkPadT420s:rvnLENOVO:rn4170CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4170CTO
  dmi.product.version: ThinkPad T420s
  dmi.sys.vendor: LENOVO

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