Re: Apparent Deadlock with nfsd/jfs on 2.6.21.1 under bonnie.

[Roger Heflin <rheflin@atipa.com>]

Dave Kleikamp wrote:
> On Tue, 2007-05-29 at 12:16 -0500, Roger Heflin wrote:
>
> > Dave,
> >
> > Apparently there appears to be another different similar lockup,
> > The MTBF has risen from 1-2 hours without that patch to >100 hours,
> > so I am fairly sure the patch did correct the original lockup, or
> > at the very least make it a lot less likely.
> >
> > I hit the machine across NFS for 5 days before it deadlocked, before
> > the patch I could only get an hour or two (2-4 different tries).
> >
> > Given that pdflush is "D" it does not appear to be an NFS issue.
> >
> > Included is the sysrq-t.
> >
> > This is with 2.6.21.1 + the JFSIO patch.
>
> Is the system still in this state?  Can you cat /proc/fs/jfs/TxAnchor
> (if CONFIG_JFS_DEBUG is defined) and /proc/fs/jfs/txstats (if
> CONFIG_JFS_STATISTICS is defined)?
>
> Thanks,
> Shaggy

Yes, the machine is still in that state.

Apparently I don't have either of those configured.

Anything else that we can collect before I rebuild the kernel with
those options setup?

                             Roger

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