[Beowulf] Forwarded from a long time reader having trouble posting

Jon Forrest jlforrest at berkeley.edu
Thu Dec 3 16:50:27 EST 2009


Gerald Creager wrote:
> Toon Knapen wrote:
>>          I believe xfs is now available in 5.4.  I'd have to check.  
>> We've
>>     found xfs to be our preference (but we're revisiting gluster and
>>     lustre). I've not played with gfs so far.

I've used xfs in several CentOS servers. In general, it works
great but I've had some scary looking crashes with 'xfs'
in the call stack (see below). I stupidly haven't taken the
time to send the crashes the the xfs people so maybe these
problems are known and fixed. I also haven't tried xfs with CentOS 5.4,
which contains official support in the kernel.

I'm sticking with ext3 for now, not because it's great, but
because it's reliable and good enough. I'd love to switch to xfs,
though.

Here's one stack trace:

Sep 28 08:41:08 frank kernel: Filesystem "md1": XFS internal error 
xfs_btree_check_sblock at line 307 of file fs/xfs/xfs_btree.c.  Caller 
0xffffffff8836deaf

Sep 28 08:41:08 frank kernel:
Sep 28 08:41:08 frank kernel: Call Trace:
Sep 28 08:41:08 frank kernel:  [<ffffffff8835ebe6>] 
:xfs:xfs_btree_check_sblock+0xaf/0xbe
Sep 28 08:41:08 frank kernel:  [<ffffffff8836deaf>]
:xfs:xfs_inobt_increment+0x156/0x17e
Sep 28 08:41:08 frank kernel:  [<ffffffff8836d918>] 
:xfs:xfs_dialloc+0x4d0/0x80c
Sep 28 08:41:08 frank kernel:  [<ffffffff88373aed>] 
:xfs:xfs_ialloc+0x5f/0x57f
Sep 28 08:41:08 frank kernel:  [<ffffffff88385b0f>] 
:xfs:xfs_dir_ialloc+0x86/0x2b7
Sep 28 08:41:08 frank kernel:  [<ffffffff8837a4b0>] 
:xfs:xlog_grant_log_space+0x204/0x25c
Sep 28 08:41:08 frank kernel:  [<ffffffff883885e4>] 
:xfs:xfs_create+0x237/0x45c
Sep 28 08:41:08 frank kernel:  [<ffffffff8834dd47>] 
:xfs:xfs_attr_get+0x8e/0x9f
Sep 28 08:41:08 frank kernel:  [<ffffffff88391e50>] 
:xfs:xfs_vn_mknod+0x144/0x215
Sep 28 08:41:08 frank kernel:  [<ffffffff8003a5cd>] vfs_create+0xe6/0x158

Cordially,
-- 
Jon Forrest
Research Computing Support
College of Chemistry
173 Tan Hall
University of California Berkeley
Berkeley, CA
94720-1460
510-643-1032
jlforrest at berkeley.edu
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