Non-responsive 8.0-RC1 (now 8.0-STABLE)

Peter Jeremy peterjeremy at
Sat Dec 5 22:48:31 UTC 2009

On 2009-Nov-30 19:13:30 +1100, Peter Jeremy <peter at> wrote:
>On 2009-Nov-29 08:56:55 +0100, Thomas Backman <serenity at> wrote:
>>On Nov 28, 2009, at 10:22 PM, Peter Jeremy wrote:
>>> My main server is running 8.0/amd64 from between RC1 and RC2 and I've
>>> recently had a couple of long-duration hangs on it during which time
>>> processes doing I/O will stop responding.
>It actually "hung" again just after I sent the original mail.  This
>time I managed to get console access and could check the kernel state.
>This showed that a number of processes were blocked on ZFS locks.
>The most commonly reported state was 'tx->tx_quiesce_done_cv)'.

I've upgraded to 8-STABLE from 30-Nov and the problem is still present,
even after disabling the boinc processes.

This seems to leave race conditions inside ZFS as the only option.

Has anyone else seen anything like this?

Peter Jeremy
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