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Date:      Wed, 23 Feb 2000 11:06:55 -0500 (EST)
From:      David Gilbert <dgilbert@velocet.ca>
To:        Nick Sayer <nsayer@quack.kfu.com>
Cc:        David Gilbert <dgilbert@velocet.ca>, freebsd-current@freebsd.org
Subject:   Re: Wierd AMD panics caused by VMWare?
Message-ID:  <14516.1439.654452.424962@trooper.velocet.net>
In-Reply-To: <38B40262.FC4EEDD0@quack.kfu.com>
References:  <14515.59795.632514.748870@trooper.velocet.net> <38B40262.FC4EEDD0@quack.kfu.com>

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>>>>> "Nick" == Nick Sayer <nsayer@quack.kfu.com> writes:

Nick> The only thing I would add is that by AMD I didn't mean Advanced
Nick> Micro Devices. I meant /usr/sbin/amd. In my case this behavior
Nick> has been observed on a Pentium III and on a K7, so it's CPU
Nick> independent.


Nick> The common denominator seems to be that the machine has to be
Nick> very active. VMware stresses the vm system quite a bit (64M of
Nick> shared memory with multiple processes digging around, etc). A
Nick> very busy web server is going to do a lot of context switching
Nick> (I think?).  In that situation, it appears that the stack is
Nick> being smashed.

Nick> I tried insulating the code where my machines go nuts inside of
Nick> splhigh() / splx(), but it didn't help.

Nick> Is your machine running the automounter?

No... but someone sent me some patches that deal with file descriptor
coruption that may (or may not) solve my problem.  It at least sounds
plausable.

Dave.

-- 
============================================================================
|David Gilbert, Velocet Communications.       | Two things can only be     |
|Mail:       dgilbert@velocet.net             |  equal if and only if they |
|http://www.velocet.net/~dgilbert             |   are precisely opposite.  |
=========================================================GLO================


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