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Date:      Thu, 16 Jan 2003 01:05:24 -0900 (AKST)
From:      Mike Tibor <tibor@tibor.org>
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
Message-ID:  <20030116005541.L26353-100000@xena.mikey.net>
In-Reply-To: <20030116033841.N30783-100000@blues.jpj.net>

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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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