ZFS lockup in "zfs" state
koitsu at freebsd.org
Wed Feb 13 13:31:56 UTC 2008
On Wed, Feb 13, 2008 at 12:53:31PM +0100, Ivan Voras wrote:
> Jeremy Chadwick wrote:
> > On Wed, Feb 13, 2008 at 11:43:42AM +0100, Ivan Voras wrote:
> >> Hi,
> >> A machine just wedged its ZFS file systems (UFS file systems were still
> >> running), all unresponsive processes were in "zfs" state. This is
> >> 7.0-RC1 on i386 with 2 GB RAM. It has happened at least once before.
> >> I have a kernel core dump (dumped from kdb/ddb on hotkey), if anyone's
> >> interested.
> > Were you copying any data from a ZFS pool to a UFS filesystem, or
> > ZFS-to-ZFS, at that time?
> I don't know - the machine is a server that's been doing it's job (web
> server, mysql, java). Depending on when the problem started, there could
> have been a rsync from ZFS to UFS for backup purposes.
> > Does your coredump's backtrace look at all
> > similar to the below report?
> > http://lists.freebsd.org/pipermail/freebsd-stable/2008-January/040047.html
> I vaguely remember there being something about sockbuf when I had the
> online debugger running and java (tomcat) is definitely running on the
> server. Can you advise me how to extract this kind of information from a
> kernel core dump (kgdb doesn't have show alllocks, etc :) )?
I personally don't know. kris@ should be able to help with this.
Volunteering people for stuff again, heh. :-)
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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