[Bug 879184] Re: Kernel crash with invalid opcode in locks.c

[Steve Langasek]

** Package changed: upstart (Ubuntu) => linux (Ubuntu)

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Title:
  Kernel crash with invalid opcode in locks.c

Status in “linux” package in Ubuntu:
  New

Bug description:
  I've hit this twice now since upgrading to Oneiric. Here's the snippet
  from syslog:

  Oct 20 17:01:43 bighouse1 kernel: [13887.632830] ------------[ cut here ]------------
  Oct 20 17:01:43 bighouse1 kernel: [13887.632843] kernel BUG at /build/buildd/linux-3.0.0/fs/locks.c:2072!
  Oct 20 17:01:43 bighouse1 kernel: [13887.632850] invalid opcode: 0000 [#1] SMP 

  Here's my version info:

  Oct 20 17:29:59 bighouse1 kernel: [    0.000000] Linux version
  3.0.0-12-generic (buildd at crested) (gcc version 4.6.1 (Ubuntu/Linaro
  4.6.1-9ubuntu3) ) #20-Ubuntu SMP Fri Oct 7 14:56:25 UTC 2011 (Ubuntu
  3.0.0-12.20-generic 3.0.4)

  The dump on the screen indicated that the error occurred while trying
  to release a file lock inside nfsd. This machine is an nfs server, and
  another machine had just initiated a backup, so there would have been
  a lot of file IO starting up. But I can't find that info in any log
  file.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: upstart 1.3-0ubuntu10
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  Date: Thu Oct 20 18:19:32 2011
  ExecutablePath: /sbin/init
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  ProcEnviron: PATH=(custom, no user)
  SourcePackage: upstart
  UpgradeStatus: Upgraded to oneiric on 2011-10-17 (3 days ago)

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