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[Apport retracing service <1504484@xxxxxxxxxxxxxxxxxx>]

** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1504484

Title:
  BUG: unable to handle kernel NULL pointer dereference at
  0000000000000008

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  My laptop Thinkpad X250 just freezed...

  ProblemType: KernelOops
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-15-generic 4.2.0-15.17
  ProcVersionSignature: Ubuntu 4.2.0-11.13-generic 4.2.1
  Uname: Linux 4.2.0-15-generic x86_64
  Annotation: Your system might become unstable now and might need to be restarted.
  ApportVersion: 2.19.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  yuanli     3020 F.... pulseaudio
   /dev/snd/controlC0:  yuanli     3020 F.... pulseaudio
  Date: Thu Oct  8 09:19:27 2015
  DuplicateSignature: BUG: unable to handle kernel NULL pointer dereference at location RIP: 0010:location  location mutex_lock+0x16/0x40
  Failure: oops
  HibernationDevice: RESUME=UUID=60f0ce85-8300-42dc-862b-1c6ab3219331
  InstallationDate: Installed on 2015-07-30 (71 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: LENOVO 20CLA0G5CD
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-11-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro ”zswap.enabled=1″ quiet splash 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: unable to handle kernel NULL pointer dereference at 0000000000000008
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/19/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N10ET36W (1.15 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CLA0G5CD
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50511 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN10ET36W(1.15):bd06/19/2015:svnLENOVO:pn20CLA0G5CD:pvrThinkPadX250:rvnLENOVO:rn20CLA0G5CD:rvrSDK0E50511WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CLA0G5CD
  dmi.product.version: ThinkPad X250
  dmi.sys.vendor: LENOVO

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