Takashi Ichihara said...

[...]

|  Therefore, we decided to switch back all the file systems from XFS to
|ext3 with standard Scientific Linux distribution kernel on our ftp
|server (i386). After that, the ftp server becomes stable again with
|ext3 file systems on SL distribution kernel.
|
|  On the other hand, we are still using XFS file systems on several
|X86_64 nodes with Scientific Linux (X86_64) for more than two years
|and these seems to be very stable.  My personal impression is that
|XFS on "i386"  architecture is not stable.

Everything I've heard and read suggests this.  I'm not
aware of anyone using XFS on 32 bit RHEL3 or 4, at least,
but a number of people seem happy with it on 64 bit
versions.  We have been running a 64 bit tier 2 NFS
server with XFS for several months with no problems.