Problems with rsync stalling

Hi,

I have a simple script that runs well on several servers in the same
datacenter, but on one server it won't run properly - after
transferring a random amount of files, it just stops - sometimes
exiting with an error, other times it just hangs there indefinently.
Any suggestions for how I can fix that error?

The versions are:

morphix2:~# uname -a
Linux morphix2 2.6.11.12-xenU #1 Fri Jul 1 15:47:11 CEST 2005 i686
unknown
morphix2:~# rsync --version
rsync version 2.5.6cvs protocol version 26
Copyright (C) 1996-2002 by Andrew Tridgell and others
<http://rsync.samba.org/>
Capabilities: 64-bit files, socketpairs, hard links, symlinks,
batchfiles,
IPv6, 64-bit system inums, 64-bit internal inums

rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and
you
are welcome to redistribute it under certain conditions. See the GNU
General Public Licence for details.
morphix2:~#

and the script looks like this:


#!/bin/sh

killall stunnel
sleep 3
stunnel -c -d localhost:555 -r rsync.ibackup.com:5000
sleep 3
rsync -r -vvv -z -t --exclude-from /root/bin/common-excludes
--exclude-from
/root/bin/bd-excludes \
--delete --delete-excluded --password-file=/root/bin/.p \
/ morphix12@localhost::ibackup/saw --port=555