From owner-freebsd-amd64@FreeBSD.ORG  Fri Apr  1 21:43:55 2005
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Date: Fri, 01 Apr 2005 14:44:51 -0500
From: Gary Mu1der <gmulder@infotechfl.com>
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Subject: Re: Tyan k8sr lockups
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All,

I have isolated the crash to the following dd command:

	dd if=/dev/mem of=/dev/null bs=1024k skip=4040 count=1

I'm trying to think of a way to obtain more diagnostics. It looks like 
truss is broken due to the the lack of /proc in 5.3. I'll compile a 
kernel with procfs and see if I can obtain more detail trussing the dd.

I really need guidance from the list on how to proceed and obtain more 
debugging info.

Thanks,
Gary