Bug#533620: ocfs2-tools: kernel BUG at fs/ocfs2/dlm/dlmmaster.c:671! invalid opcode

[Jonathan Nieder <jrnieder@gmail.com>]

found 533620 linux-2.6/2.6.26-17
quit

Hi Rainer,

Rainer Typke wrote:

> kernel BUG at fs/ocfs2/dlm/dlmmaster.c:671!

Thanks.  I assume this never happened again?

| $ git show v2.6.26:fs/ocfs2/dlm/dlmmaster.c | sed -n '671 p'
|	BUG_ON(res->inflight_locks == 0);

This _might_ have been fixed by v2.6.32-rc1~697^2 (fsync: wait for
data writeout completion before calling ->fsync, 2009-09-03).  If so,
the fix doesn't seem to be part of lenny or v2.6.27.y yet.  If you are
still on lenny and can provoke this at will (unlikely, I know), please
try a lenny-bpo kernel so we can see if that guess is plausible.

[...]
> Right now, I am running:
>
> 2.6.26-2-openvz-amd64 #1 SMP Sun Jul 26 21:18:21 UTC 2009 x86_64 GNU/Linux

That's 2.6.26-17lenny1, I think.

> So - it probably was the version that was available on the Debian
> repositories before this one.  Is there a reliable way of making
> sure?

syslog and kern.log would have said something like the following, near
the start of bootup, fwiw:

| Sep 11 18:52:37 elie kernel: [    0.000000] Linux version 3.1.0-rc5 (jrn@elie) (gcc version 4.6.1 (Debian 4.6.1-9) ) #2 SMP PREEMPT Tue Sep 6 12:25:37 CDT 2011

Thanks again for your help,
Jonathan