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https://bugs.launchpad.net/bugs/1443214

Title:
  BUG: soft lockup - CPU#1 stuck for 23s! [pool:7903]

Status in linux package in Ubuntu:
  New

Bug description:
  Both the mouse and keyboard got frozen. The only response: the browser button blinked 4 times whenever pressed. The screen would turn on/off when closing/opening the lid.
  I needed to power the notebook off by holding the power button pressed for a few seconds. The notebook is HP Probook 6470b if this helps. This was the first time I experienced this fully uncontrollable state. This may be related to previous random freezes of only the keyboard when I could still use the touchpad.
  It was not long ago when I updated the kernel the kernel to 'Ubuntu 3.16.0-34.45-generic 3.16.7-ckt8'.

  ProblemType: KernelOops
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.45
  ProcVersionSignature: Ubuntu 3.16.0-34.45-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  NonfreeKernelModules: wl
  Annotation: Your system might become unstablenow and might need to be restarted.
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0c:   ata        2026 F...m pulseaudio
   /dev/snd/pcmC0D0p:   ata        2026 F...m pulseaudio
   /dev/snd/controlC0:  ata        2026 F.... pulseaudio
  Date: Sat Apr 11 17:39:28 2015
  DuplicateSignature: BUG: soft lockup - CPU#1 stuck for 23s! [pool:7903] RIP: 0010:location  location generic_exec_single+0xd6/0x190
  Failure: oops
  HibernationDevice: RESUME=UUID=5ccd986b-e478-4ced-b4d7-6b034e2ae500
  InstallationDate: Installed on 2014-12-04 (129 days ago)
  InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProBook 6470b
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=a65b2c0c-545b-4b5e-90fa-f32a8319282a ro quiet splash acpi_backlight=vendor vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-3ubuntu8
  SourcePackage: linux
  Title: BUG: soft lockup - CPU#1 stuck for 23s! [pool:7903]
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/05/2012
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68ICE Ver. F.32
  dmi.board.name: 179C
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 42.32
  dmi.chassis.asset.tag: 6470b
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68ICEVer.F.32:bd12/05/2012:svnHewlett-Packard:pnHPProBook6470b:pvrA1029C1102:rvnHewlett-Packard:rn179C:rvrKBCVersion42.32:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP ProBook 6470b
  dmi.product.version: A1029C1102
  dmi.sys.vendor: Hewlett-Packard

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