SUMMARY(2): NFS file locking with SuSE 8.2 client

Dear Linux Managers,

I've finally got the correct answer to this problem, it was very simple
but badly documented. To enable NFS locking you need a lockd and a statd
on both server and client. I had everything except statd on the client.

On the newer SuSE systems (starting 8.1) statd is *not* enabled by
default (although lockd is because it is a kernel thread. But statd
is a user process and is started by /etc/init.d/nfslock. So you need to
type
   chkconfig nfslock on
   rcnfslock start

Bob

On Thu, 15 May 2003, Bob Vickers wrote:

Original message:

> Today I upgraded a machine from SuSE 8.0 to SuSE 8.2 and galeon stopped
> working. Galeon tries to start gconfd-2 and this fails; gconfd-2 also
> fails if you try and start it by hand.
>
> The message in the log is
>
> gconfd (zmac089-13318): Failed to get lock for daemon, exiting:
>     Failed to create or open '/home/ugrads/xxxxxxx/.gconfd/lock/ior'
>
> If I run strace on gconfd-2 I see
>
> open("/home/ugrads/xxxxxxx/.gconfd/lock/ior", O_RDWR) = 6
> fcntl64(6, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = -1
> ENOLCK (No locks available)
>
> I believe this an NFS locking problem. Galeon works if the home directory
> is on a local disc, but not if it is on an NFS file system. It fails with
> two different NFS servers: one of them SuSE Linux 8.0, one of them Tru64
> Unix 4.0G. Neither server has changed recently.
>
> Does anyone know of recent NFS client changes that might have affected
> locking? And are there any other tests I can try to confirm whether or not
> locking works at all or whether it is just gconfd that is affected?
>
> rpcinfo reports (on the client)
> /usr/sbin/rpcinfo -p localhost | grep lock
>     100021    1   udp  32768  nlockmgr
>     100021    3   udp  32768  nlockmgr
>     100021    4   udp  32768  nlockmgr
>
> I'm rather stumped: any ideas gratefully received.
>
> Bob
> ==============================================================
> Bob Vickers                     [email protected]
> Dept of Computer Science, Royal Holloway, University of London
> WWW:    http://www.cs.rhul.ac.uk/home/bobv
> Phone:  +44 1784 443691
>

==============================================================
Bob Vickers                     [email protected]
Dept of Computer Science, Royal Holloway, University of London
WWW:    http://www.cs.rhul.ac.uk/home/bobv
Phone:  +44 1784 443691
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