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[raoulbhatia <raoul@xxxxxxxxx>]

Please let me know if i should forward this to the kernel mailinglist
instead!

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https://bugs.launchpad.net/bugs/1225490

Title:
  BUG: unable to handle kernel paging request at 0000000100000000

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I encountered an kernel oops 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.

  No kerberos is in use.

  To get things up and running for 700+ user ids, i configured the
  following on the client, using trial and error, to have the correct
  user ids on the NFS mount:

  echo N > /sys/module/nfs/parameters/nfs4_disable_idmapping
  kernel.keys.root_maxbytes = 100000
  kernel.keys.root_maxkeys = 1000
  kernel.keys.maxbytes = 100000
  kernel.keys.maxkeys = 1000

  I was capturing the trace via an SSH session using tail -f so some
  information might be missing :-/ (attached)

  Thanks,
  Raoul

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