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Date:      Mon, 23 Dec 1996 01:18:08 -0800 (PST)
From:      brian@mediacity.com
To:        erich@uruk.org (Erich Boleyn)
Cc:        smp@freebsd.org
Subject:   Re: (long) P6 and ??? TLB shootdown ???
Message-ID:  <19961223091808.7334.qmail@mediacity.com>
In-Reply-To: <E0vbsml-00080n-00@uruk.org> from Erich Boleyn at "Dec 22, 96 10:38:07 am"

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Erich Boleyn wrote:
> Hi all.  I spent the last few days doing debugging exercises with
> FreeBSD-SMP on my P6 SMP test box.  The results were interesting.
> 
> First of all, I dug around in the debugger more, always getting an
> error message and stack traceback that always looks like the following
> (modulo some differences in the "fault virtual address" and the
> "current process" stuff):

I get the identical fault, at the same point, running on my
P6 ASUS 2xPP200 motherboard.

brian@mediacity.com

> 
> ---------------------------(start DDB stuff)--------------------------------
> Fatal trap 12: page fault while in kernel mode
...
> kernel: type 12 trap, code=0
> Stopped at	_pmap_enter+0x8f:	movl	0(%ecx),%ecx



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