[Linux-cluster] GFS umount hang after heavy read/write from NFS client
David Teigland
teigland at redhat.com
Mon Feb 28 03:59:35 UTC 2005
On Sun, Feb 27, 2005 at 10:54:01PM +0800, ?????? wrote:
> Hello,all
>
> I got messages as follows:
>
> GFS: fsid=MyTest:vgtest.2: Unmount seems to be stalled. Dumping lock state...
> What's the meaning ? GFS lock out,or NFS lock out?
GFS can't unlock those two locks for some reason; it's probably a dlm bug.
We saw this in the past, but not recently. Maybe we're not running enough
GFS/NFS tests.
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=142993
> And the "umount" process occupied 99.9% of CPU.
> The status of the "umount" process was
> "29121 ? R 74:08 umount /mnt/gfs/10".
>
> I use the kernel 2.6.9.
It would be helpful to know if you see this with the current code in cvs
(which needs 2.6.10) and if it happens often.
--
Dave Teigland <teigland at redhat.com>
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