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Date: Wed, 25 May 2005 21:39:51 -0400 (EDT)
From: "Mike Jakubik" <mikej@rogers.com>
To: "Palle Girgensohn" <girgen@pingpong.net>
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Cc: amd64@freebsd.org
Subject: Re: Dual Xeon EM64T crashes reliably w/ 5.x amd64
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On Wed, May 25, 2005 8:44 pm, Palle Girgensohn said:
>

>
> HTT is off (byt setting in BIOS). It helped for a couple of days, but
> now it crashes with "simple" dual SMP as well. Turning SMP off in kernel
> config makes the machine stable, so this is an SMP problem, AFAIKT.
>
>
> Can anyone conclude if this is a harware problem? There must be tons of
> Dell 2850's out there, aren't any running FreeBSD 5.4/amd64? Are they
> stable?

You would have to enable debugging, and let us know the result. Please
look at 
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html
for more info. Also, a dmesg of your system would be useful too.