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Date: Mon, 12 Jul 2004 22:35:57 +0200
From: Johan Pettersson <manlix@demonized.net>
To: Robert Watson <rwatson@freebsd.org>
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cc: freebsd-current@freebsd.org
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cc: skywizard@mybsd.org.my
Subject: Re: Native preemption is the culprit [was Re: today's CURRENT
 lockups]
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> Per my earlier post, I've experienced similar unreliability.  The work
> around I'm using is to build with "#define PREEMPTION" from param.h
> disabled.  This results in a quite usable kernel, although quite
> probably more poor interrupt handling latency, etc.
> 
> Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
> robert@fledge.watson.org      Principal Research Scientist, McAfee
> Research
> 

Do you or John or any one else know whats can cause this? Is there any
ongoing work to fix this?