[Linux-cluster] GFS2 lockf(): Function not implemented

[rhurst at bidmc.harvard.edu]

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 at redhat.com [mailto:linux-cluster-bounces at redhat.com] On Behalf Of Oliver Heinz
Sent: Thursday, July 29, 2010 8:56 AM
To: linux-cluster at redhat.com
Subject: Re: [Linux-cluster] 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 at 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 at 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