Le Tue, 16 Nov 2010 14:10:51 +0100 vous écriviez:
> Hi,
>
> Our environment is following:
> - we have 24GB RAM,
> - we are using 3ware controller (and it does not report any errors),
What model? 9550SX? 9650SE? 9690SA? 9750 ?
> - we have one big logical volume (20TB) exported via NFS with large
> amount of small files (about 150k),
> - we are doing periodically backup of this logical volume using rsync
> to another server.
> - we have kernel 2.6.27.39,
What distribution, architecture? What is the version of xfs tools
(try xfs_info -V for instance)? What are the xfs mount options?
> Unfortunately our system is freezing unexpectedly without reason.
What are the symptoms ? does the whole system freeze up? Or does it
crash with kernel panic, or otherwise "Oops" messages?
Older 3Ware cards (9550, early 9650) are prone to overheating and may
fail.
> We
> started investigating this problem and noticed that cache memory is
> slowly increasing.
This is completely normal and expected. Linux uses up all available
memory as a disk cache.
> We tried to dump this cache memory using:
> /bin/echo "3" > /proc/sys/vm/drop_caches
>
> In a result, cache was dumped, but in logs we noticed a lot of errors
> with XFS:
>
> [kern.warning] kernel: xfs_iunlink_remove: xfs_inotobp() returned an
> error 22 on dm-16. Returning error.
> [kern.notice] kernel: xfs_inactive:\011xfs_ifree() returned an error
> = 22 on dm-16
> [kern.notice] kernel: xfs_force_shutdown(dm-16,0x1) called from line
> 1406 of file fs/xfs/xfs_vnodeops.c. Return address = 0x
> [kern.alert] kernel: Filesystem \"dm-16\": I/O Error Detected.
> Shutting down filesystem: dm-16
> [kern.alert] kernel: Please umount the filesystem, and rectify the
> problem(s)
> [kern.warning] kernel: xfs_imap_to_bp: xfs_trans_read_buf()returned
> an error 5 on dm-16. Returning error.
> [kern.warning] kernel: xfs_imap_to_bp: xfs_trans_read_buf()returned
> an error 5 on dm-16. Returning error.
> [kern.warning] kernel: xfs_imap_to_bp: xfs_trans_read_buf()returned
> an error 5 on dm-16. Returning error.
>
> We are wondering if this is problem connected to hardware or rather
> this is XFS problem (if yes, was it fixed?).
This may be an xfs bug but more details would be necessary.
--
------------------------------------------------------------------------
Emmanuel Florac | Direction technique
| Intellique
| <eflorac@xxxxxxxxxxxxxx>
| +33 1 78 94 84 02
------------------------------------------------------------------------
_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs
