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Date: Tue, 18 Oct 2005 16:40:23 GMT
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To: freebsd-amd64@FreeBSD.org
From: "David O'Brien" <obrien@FreeBSD.org>
Cc: 
Subject: Re: amd64/87514: 6.0-CURRENT freezes machine using >4GB on AMD64
	architecture with high memory load
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The following reply was made to PR amd64/87514; it has been noted by GNATS.

From: "David O'Brien" <obrien@FreeBSD.org>
To: Sean Dean <seandean@enhancededge.com>
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: amd64/87514: 6.0-CURRENT freezes machine using >4GB on AMD64 architecture with high memory load
Date: Tue, 18 Oct 2005 09:36:41 -0700

 On Sun, Oct 16, 2005 at 10:47:40AM +0000, Sean Dean wrote:
 > Under 6.0-CURRENT using a Tyan K8SE (v1.03) with dual Opterons and 8GB
 > of RAM my machine will freeze up when I have Software selected in
 > the BIOS for Memhole mapping. The system will freeze when running a
 > high load memory application, or an application using a large portion
 > of memory.
 ...
 > Running in either Hardware or Disabled mode for Memhole mapping will
 > not cause the machine to freeze, but will remove about 1GB of RAM from
 > the OS.
 
 This is a BIOS bug, not a FreeBSD bug.  What version of the BIOS are you
 running?  What revision Opterons do you have?
 
 -- 
 -- David  (obrien@FreeBSD.org)