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Date: Thu, 17 Feb 2005 12:51:06 -0800
From: Sean Chittenden <sean@gigave.com>
To: Ion-Mihai Tetcu <itetcu@people.tecnik93.com>
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cc: threads@FreeBSD.org
Subject: Re: Strange backtrace from amd64 + mysqld...
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> I have problems with mail/dspam-devel on amd64 and only if I run it in
> daemon mode (stand-alone it doesn't use threads). It doesn't crash, just
> spans the threads and stay there. I can say if it's the app or the
> system.
>   If someone could tell me what tool to use (valgrind works only on i386)
> I'd be glad to debug further.
> 
> The system is a 5.3-REALEASE and MySQL is 4.1.9 compiled (for now) with
> defaults, MyIsam tables (tried inodb but it was way to slow) and had no
> mysql problems so far.

Try setting the process up to use libthr instead of libpthreads via
libmap.conf(5).  If that fixes your problems, it's a good bet there's
some kind of synchronization issue on amd64 that you're running into.
-sc

-- 
Sean Chittenden