This may be a red herring, but can you check your permission bits on the file, /srv/data/shared/locktest If an 'ls -al locktest' shows it like 'rwxr-Sr-x' with the 'S' in the permissions for the group, that indicates mandatory locking -- I know GFS does/did not support that; I have not checked since my first encounter with that limitation from October 2006, so it may not be true today or with GFS2. Perhaps you can 'chmod g-s locktest' and try it again -- that had worked for me back then. -----Original Message----- From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Oliver Heinz Sent: Thursday, July 29, 2010 8:56 AM To: linux-cluster@xxxxxxxxxx Subject: Re: GFS2 lockf(): Function not implemented Here's the 'strace -f' which might be more useful than the plain strace originally attached. Oliver Am Donnerstag, 29. Juli 2010 13:45:43 schrieb Oliver Heinz: > Am Donnerstag, 29. Juli 2010 13:27:09 schrieb Steven Whitehouse: > > Hi, > > > > On Thu, 2010-07-29 at 12:52 +0200, Oliver Heinz wrote: > > > Hi, > > > > > > I'm trying to get a pacemaker/gfs2 setup working. Everything works good > > > so far, but when applications try to do locks on the shared gfs2 > > > volumes I get "function not implemented". > > > > > > > > > For testing purposes I used the locktest script here: > > > http://nfsv4.bullopensource.org/tools/tests/locktest.php > > > > Was it trying to do mandatory locking? We don't support that. Can you > > strace the failing process and also show the exact error message that > > you are getting? > > That's what I get: > > root@server-c:~# ./locktests -n 2 -f /srv/data/shared/locktest > Init > process initalization > .... > -------------------------------------- > > TEST : TRY TO WRITE ON A READ LOCK:Master: can't set lock > > : Function not implemented > > Echec > > : Function not implemented > > strace output is attached. > > > The real world problem I'm facing is when I try to start vservers that > reside on the gfs2 Filesystem, strace output is also attached. > > root@server-c:~# vserver -v testshared start > secure-mount: lockf(): Function not implemented > Failed to update mtab-file > secure-mount: lockf(): Function not implemented > Failed to update mtab-file > secure-mount: lockf(): Function not implemented > Failed to update mtab-file > > > > > TIA, > Oliver -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster