There is not p2p ... its web + mail server.
The error is not reproducable (its on random days at random hours) :(
At the moment,i m trying to find the what file is (its hard) ...
But im going to prepare another server in order to move all information
xfs_repair and xfs_fsr commands. That shoud fix it...
Sep 13 08:39:34 txori kernel: perl5.8.5: page allocation failure.
if this is reproducable i would strace perl when it's doing whatever
causes this and see if it is related to a single file or group of
files then as eric suggested look at those with xfs_bmap -v
if they are really badly fragmented (p2p applications tend to so this)
then xfs_fsr filename1 [filename2 [...]] should address that assuming
your not down to the wire on freespace