Brett Worth wrote: > My original problem is still there however. I've tested the flock > functionality of OCFS2 and it works but Xen it seems doesn't do locking > even on a shared filesystem. It is possible that Xen is trying to do > some other sort of file locking but unfortunately OCFS2 only supports > flock. OCFS2 1.4 (recently released) supports clustered flock: http://oss.oracle.com/pipermail/ocfs2-announce/2008-August/000027.html I'm not sure how filesystem locking relates to Xen, though. Xen has nothing to do with it. It only supplies the shared writable (w!) block device. -- Christopher G. Stach II