From owner-freebsd-current  Thu Jan 16  2: 5:32 2003
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Date: Thu, 16 Jan 2003 01:05:24 -0900 (AKST)
From: Mike Tibor <tibor@tibor.org>
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To: Trevor Johnson <trevor@jpj.net>
Cc: Wilko Bulte <wkb@freebie.xs4all.nl>,
	Kris Kennaway <kris@obsecurity.org>,
	Andrew Gallatin <gallatin@cs.duke.edu>, <alpha@FreeBSD.ORG>,
	<current@FreeBSD.ORG>
Subject: Re: unexpected machine check on 5.0 alpha
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On Thu, 16 Jan 2003, Trevor Johnson wrote:

> I just got a similar crash:
>
> 	unexpected machine check:
>
> 	    mces    = 0x1
> 	    vector  = 0x670
> 	    param   = 0xfffffc0000004e10
> 	    pc      = 0xfffffc00004069bc
> 	    ra      = 0xfffffc00004069b4
> 	    curproc = 0xfffffc001f169200
> 	        pid = 23, comm = intr: sym1


> I was sitting next to it when it crashed, and I would have noticed if the
> fans had stopped.  From earlier logs, I see that the temperature has
> varied between 21 and 27 Celsius.  I don't know what it is now, but it
> feels warmish when I'm wearing just a tee shirt.  There's a fan that
> constantly blows air into the room, which points toward the back of the
> computer.  Should I run the air conditioner more often?

I believe a 670 machine check can also result from a read of a
non-existent I/O space.  I'm not a programmer, but could that be the
problem here?

Mike


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