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Date: Fri, 27 Nov 2009 12:45:03 +0000
From: Conor McDermottroe <ports@mcdermottroe.com>
To: Attilio Rao <attilio@freebsd.org>
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Cc: freebsd-threads@freebsd.org
Subject: Re: threads/135673: databases/mysql50-server - MySQL query
	lock-ups on 7.2-RELEASE amd64
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On Tue, Nov 24, 2009 at 04:53:36PM +0100, Attilio Rao wrote:
> My last findings were revealing a sudden zeroing of userland
> structures where a lock was embedded, leaving some waiters on such
> locks stuck in the kernel.
> I think this is a MySQL bug and I feel to suggest you to upgrade to
> newest MySQL versions.

I'll experiment with MySQL 5.1 on our new FreeBSD 8.0 machine and see
if I can trigger the bug on that.

Is there anything specific I can do to gather information for you when
I'm testing that?

-Conor