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Date: Thu, 22 Jul 2004 08:38:34 -0400 (EDT)
From: Robert Watson <rwatson@freebsd.org>
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To: DrVince <drvince@anonymnet.net>
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cc: Jan Lentfer <lentferj@bio.tu-darmstadt.de>
cc: freebsd-current <freebsd-current@freebsd.org>
Subject: Re: 5.2-CURRENT constantly crashing
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On Thu, 22 Jul 2004, DrVince wrote:

> On Thu, 22 Jul 2004 11:23:53 +0200, Jan Lentfer wrote
> > i am running 5.2-CURRENT on an old 4x PPRO (200) Amdahl EnVista Server.
> > The system is constantly crashing under heavy load for about 2-3 
> > month now. Since all drives are connected to a Mylex Raid Controller,
> >  I can't get any kernel dumps :(.
> 
> I've been reporting this for a while.  I have all new hardware and
> running 2 IDE local drives, nothing's faulty.  Everything is working
> fine now that I have downgraded to 5.2.1. I have no kernel dump either
> since it's a problem with software disk write buffer. But, at least, you
> get a message of what could be the problem, I only got dead freezes. 
> For me, it wasn't heavy loads that was crashing it, but only buffers
> getting full. 

I recently disabled sync-on-panic, which may increase the reliability of
dumping.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Principal Research Scientist, McAfee Research