On Mon, Sep 19, 2011 at 02:28:23PM +0200, Assarsson, Emil wrote: > Hi, > > We are running a 20TB XFS filesystem on top of LVM2 and SAN storage (HP > Open-V) with multipathd. Ubuntu Lucid. The disk write cache is enabled > and we use mount options rw. > Sep 16 06:40:34 seldlnx034 kernel: [54607.977261] XFS internal error > XFS_WANT_CORRUPTED_RETURN at line 381 of > file /build/buildd/linux-2.6.32/fs/xfs/xfs_alloc.c. Caller > 0xffffffffa01eed36 > Sep 16 06:40:34 seldlnx034 kernel: [54607.996676] [<ffffffffa0215383>] > xfs_error_report+0x43/0x50 [xfs] > Sep 16 06:40:34 seldlnx034 kernel: [54607.996689] This (corrupted allocation btrees) is a typical indication of missing cache flushes. Given that before ~2.6.35 LVM/device mapper was not able to pass through cache flush requests that is your most likely culprit. A repair will rebuild the freespace btrees, and make sure to keep the write caches down the whole stack disabled. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
