EFSCORRUPTED returned from file xfs_ialloc.c

[Christian Guggenberger <christian.guggenberger@xxxxxxxxxxxxxxxxxxxxxxxx>]

  Hi Folks,
 
  Just, after starting a weekly xfs_fsr on a 400GB lvm device (HW Raid),
  the filesystem shut down unclean. Now i can't mount it again.
  This filesystem was exported via nfs.
  
  Here's the logs: (output of xfs_repair -n is availbale at 
 http://homepages.uni-regensburg.de/~guc28561/repair.txt.gz )
  
  nfsd: non-standard errno: -990
  EFSCORRUPTED returned from file xfs_ialloc.c line 1312
  xfs_btree_check_sblock: Not OK:
  magic 0x0 level 0 numrecs 0 leftsib 0 rightsib 0
  EFSCORRUPTED returned from file xfs_btree.c line 200
  xfs_force_shutdown(lvm(58,1),0x8) called from line 1042 of file
  xfs_trans.c.  Return address = 0xc01c4f09
  Filesystem "lvm(58,1)": Corruption of in-memory data detected.  Shutting
  down filesystem: lvm(58,1)
  Please umount the filesystem, and rectify the problem(s)
  nfsd: last server has exited
  nfsd: unexporting all filesystems
  XFS mounting filesystem lvm(58,1)
  Starting XFS recovery on filesystem: lvm(58,1) (dev: 58/1)
  XFS: xlog_recover_process_data: bad clientid
  XFS: log mount/recovery failed
  XFS: log mount failed
  
  
  thx in advance 
  Christian

P.S. sorry for the 3rd resend, didn't want to spam the list with that big 
attachments...