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[Bug 1365914] Re: Incorrect backport to 2.6.32-stable - NFSD regression.

 

This fix is available in upstream 2.6.32, so it can be considered as a
regular stable update -- we just SRU'ed it without waiting for the
upstream release.  As such, I'm tagging it as verified.

** Tags removed: verification-needed-lucid
** Tags added: verification-done-lucid

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https://bugs.launchpad.net/bugs/1365914

Title:
  Incorrect backport to 2.6.32-stable - NFSD regression.

Status in “linux” package in Ubuntu:
  Invalid
Status in “linux” source package in Lucid:
  Fix Committed

Bug description:
  SRU Justification:

  Impact:
  The original bug report[1] refers to the failure in running pulseaudio
  when $HOME is NFS4 mounted.

  [1] https://bugzilla.novell.com/show_bug.cgi?id=893787

  Fix:
  Reverting Lucid 0a69d50207d9e098eeb98b516b1b08b4d05dbc6f commit
  (47c85291d3dd1a51501555000b90f8e281a0458e commit upstream) will fix
  this issue.

  Testcase:
  Although I haven't tested this myself, the original bug reporter
  provides a test case:

  1. Mount ~ from NFS4

  2. start pulseaudio:
     ~$ pulseaudio
     E: [pulseaudio] core-util.c: Failed to create secure directory
     (/home/foo/bar/.pulse): Remote I/O error

  3. Actual Results:  
     pulseaudio does not work
     Expected Results:  
     pulseaudio should work

  --

  Neil Brown reported[1] in the stable mailing list that

  commit 63d059e73ff4574b79bd8aa252b5fc00b6326ddf
  Author: NeilBrown <neilb@xxxxxxx>
  Date:   Wed Feb 16 13:08:35 2011 +1100

      nfsd: correctly handle return value from nfsd_map_name_to_*

      commit 47c85291d3dd1a51501555000b90f8e281a0458e upstream.

  in kernel 2.6.32.30 fixes a regression introduced by commit
  3c726023402a2f3b28f49b9d90ebf9e71151157d.  However, this commit hasn't
  been backported to the 2.6.32 kernel.

  So, rather an fixing a regression, it introduces one and this patch
  should be reverted.

  For more details, see
  https://bugzilla.novell.com/show_bug.cgi?id=893787

  [1] http://www.spinics.net/lists/linux-nfs/msg46403.html

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References