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[Paul Gear <paul.gear@xxxxxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/1515828

Title:
  system lockup, console logs kernel BUG at /build/linux-lts-trusty-
  HlNG0J/linux-lts-trusty-3.13.0/kernel/hrtimer.c:1310

Status in linux package in Ubuntu:
  Triaged
Status in linux-lts-trusty package in Ubuntu:
  Triaged

Bug description:
  Reproducible by trying to do any non-trivial amount of I/O to one of
  the installed SSDs, e.g.: dd if=/dev/sdb of=/dev/null bs=1024k

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.13.0-68-generic 3.13.0-68.111~precise1
  ProcVersionSignature: Ubuntu 3.13.0-68.111~precise1-generic 3.13.11-ckt27
  Uname: Linux 3.13.0-68-generic x86_64
  ApportVersion: 2.12-0ubuntu2~0.IS.12.04.1
  Architecture: amd64
  Date: Fri Nov 13 01:16:14 2015
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lts-trusty
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  AlsaDevices:
   total 0
   crw-rw---T 1 root audio 116,  1 Nov 16 04:40 seq
   crw-rw---T 1 root audio 116, 33 Nov 16 04:40 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.12-0ubuntu2~0.IS.12.04.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=dd29704b-6519-4acc-a914-839bd69f55ca
  MachineType: HP ProLiant DL380p Gen8
  MarkForUpload: True
  Package: linux-lts-trusty
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-68-generic root=UUID=26f87a1c-69ca-4830-84af-e934b0ec5283 ro console=tty0 console=ttyS1,38400 nosplash initrd=amd64/generic/precise/release/di-initrd BOOTIF=01-2c-44-fd-81-23-e8 quiet
  ProcVersionSignature: Ubuntu 3.13.0-68.111~precise1-generic 3.13.11-ckt27
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-68-generic N/A
   linux-backports-modules-3.13.0-68-generic  N/A
   linux-firmware                             1.79.18
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  precise uec-images
  Uname: Linux 3.13.0-68-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm
  dmi.bios.date: 09/22/2013
  dmi.bios.vendor: HP
  dmi.bios.version: P70
  dmi.chassis.type: 23
  dmi.chassis.vendor: HP
  dmi.modalias: dmi:bvnHP:bvrP70:bd09/22/2013:svnHP:pnProLiantDL380pGen8:pvr:cvnHP:ct23:cvr:
  dmi.product.name: ProLiant DL380p Gen8
  dmi.sys.vendor: HP

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