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[Bug 1504484] Re: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008

 

Yuan Li, thank you for reporting this and helping make Ubuntu better. As
per http://support.lenovo.com/us/en/products/laptops-and-
netbooks/thinkpad-x-series-laptops/thinkpad-x250 an update to your
computer's buggy and outdated BIOS is available (1.17). If you update to
this following https://help.ubuntu.com/community/BIOSUpdate does it
change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible, and the
information above is provided, then please mark this report Status
Confirmed. Otherwise, please mark this as Invalid.

Thank you for your understanding.

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

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

-- 
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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:
  Incomplete

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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