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[Bug 1229643] Missing required logs.

 

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1229643

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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https://bugs.launchpad.net/bugs/1229643

Title:
  [<ffffffffa070d1f3>] ? fscache_object_work_func+0xb3/0x1f0 [fscache] /
  BUG: unable to handle kernel NULL pointer dereference at
  0000000000000002

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I encountered an kernel trace regarding Cachefilesd running
  3.11.0-7-generic #13-Ubuntu SMP Tue Sep 10 20:55:38 UTC 2013 x86_64
  GNU/Linux under Debian Squeeze 6.0.7 amd64 on an Opteron barebone.

  This server is an NFS client using cachefilesd.

  The NFS server is Debian Squeeze 6.0.7 amd64 running
  3.2.0-0.bpo.4-amd64 #1 SMP Debian 3.2.46-1~bpo60+1 x86_64 GNU/Linux
  and nfs-kernel-server on an Opteron barebone as well.

  No kerberos is in use.

  The system is basically the same as in Bug #1225494 . However, named
  bug is regarding a problem with nfs_idmap whereas this seems to be a
  problem with fscache.

  The trace is attached.

  Thanks,
  Raoul

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References