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[Bug 1511213] Re: frequent lockups with wily kernels


*** This bug is a duplicate of bug 1448912 ***

This looks like a duplicate of Bug #1448912 and I am going to mark it as
a duplicate.

Please try the test kernels on that bug, and if this is not a duplicate
we can split this back off

** This bug has been marked a duplicate of bug 1448912
   BUG: unable to handle kernel NULL pointer dereference (aa_label_merge)

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  frequent lockups with wily kernels

Status in linux package in Ubuntu:
Status in linux source package in Wily:

Bug description:
  Getting frequent lockups with wily's kernel (roughly every couple of
  days or so). Usually the kern.log is quiet on why it happened, but an
  oops showed up from one recently.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
   /dev/snd/controlC1:  steve      1675 F.... pulseaudio
   /dev/snd/controlC0:  steve      1675 F.... pulseaudio
  CurrentDesktop: i3
  Date: Wed Oct 28 21:36:07 2015
  HibernationDevice: RESUME=UUID=2403a6d5-7f89-4f74-8bed-6ec44824ada2
  InstallationDate: Installed on 2015-04-14 (197 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
   Bus 003 Device 002: ID 8087:8001 Intel Corp. 
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 8087:0a2a Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20BXCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=80281fba-f034-44b7-a28e-2d44559a6e37 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: Upgraded to wily on 2015-09-25 (33 days ago)
  dmi.bios.date: 03/02/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JBET46WW (1.11 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BXCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrJBET46WW(1.11):bd03/02/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20BXCTO1WW
  dmi.product.version: ThinkPad T450s
  dmi.sys.vendor: LENOVO

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