[Linux-cluster] umount hung single node
Daniel McNeil
daniel at osdl.org
Wed Mar 16 01:33:49 UTC 2005
On Fri, 2005-03-11 at 00:27, David Teigland wrote:
> On Wed, Mar 09, 2005 at 05:26:34PM -0800, Daniel McNeil wrote:
> > I upgraded to 2.6.11 and the latest cvs a few days ago.
> > I started my tests on Mar 7 16:01 and they hung on Mar 9 12:34.
> > This is a 3 node cluster, but the test that hung only has 1
> > node with gfs mounted and it is trying to unmount:
> >
> > root 12500 12494 0 12:34 ? 00:00:01 umount /gfs_stripe5
> >
> > $ cat /proc/12500/wchan
> > .text.lock.ast
> >
> > dlm_astd is spinning as top shows:
> >
> > 12302 root 20 -5 0 0 0 R 99.9 0.0 280:28.23 dlm_astd
>
> I've found and fixed a missing lock around ast_queue. If that list
> was corrupted it could explain this problem which looks like infinite
> looping through that list.
I upgrade to the latest cvs and I hit the same problem again.
umount is hung:
root 24099 24093 0 Mar14 ? 00:00:02 umount /gfs_stripe5
and dlm_astd is spinning:
23895 root 20 -5 0 0 0 R 99.9 0.0 1479:34 dlm_astd
Any ideas? Is there any debug info that would be useful?
Daniel
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