From owner-freebsd-current@FreeBSD.ORG  Wed Aug 19 18:49:30 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@FreeBSD.org
Received: from [127.0.0.1] (freefall.freebsd.org [IPv6:2001:4f8:fff6::28])
	by hub.freebsd.org (Postfix) with ESMTP id 86D07106568B;
	Wed, 19 Aug 2009 18:49:29 +0000 (UTC)
	(envelope-from jkim@FreeBSD.org)
From: Jung-uk Kim <jkim@FreeBSD.org>
To: freebsd-current@FreeBSD.org
Date: Wed, 19 Aug 2009 14:49:17 -0400
User-Agent: KMail/1.6.2
References: <20090819150045.0e01640a@baby-jane.lamaiziere.net>
	<20090819144136.GV1292@hoeg.nl>
	<200908191417.50237.jkim@FreeBSD.org>
In-Reply-To: <200908191417.50237.jkim@FreeBSD.org>
MIME-Version: 1.0
Content-Disposition: inline
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Message-Id: <200908191449.19887.jkim@FreeBSD.org>
Cc: Ed Schouten <ed@80386.nl>, pluknet <pluknet@gmail.com>,
	Patrick Lamaiziere <patfbsd@davenulle.org>
Subject: Re: AP#1 Failed! panic y/n?
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 19 Aug 2009 18:49:30 -0000

On Wednesday 19 August 2009 02:17 pm, Jung-uk Kim wrote:
> On Wednesday 19 August 2009 10:41 am, Ed Schouten wrote:
> > * pluknet <pluknet@gmail.com> wrote:
> > > I'm not Patrik, but I saw this on two Intel boxes running on
> > > 6.2. smbios.system.product="S5000PAL". I didn't try the later
> > > releases on them.
> >
> > I wouldn't mind adding non-Apple hardware to this list, but only
> > if you can tell me the following:
>
> There are many Intel ICH boards with this "feature", not just Apple
> Macs. ;-)
>
> I heard disabling legacy keyboard/mouse emulation may work around
> the problem if there is option in the BIOS:
>
> http://rt.wiki.kernel.org/index.php/HOWTO:_Build_an_RT-application
>
> The hack for Mac is required because it doesn't have "BIOS".
>
> FYI, I found RT Linux people wrote a simple tool to control the
> bits from user space:
>
> http://www.rts.uni-hannover.de/rtaddon/

I found I had a similar (but very old) tool for FreeBSD:

http://people.freebsd.org/~jkim/ich-periodic-smm-disable.c

Originally it was posted here:

http://lists.freebsd.org/pipermail/freebsd-stable/2005-April/013737.html

It was a different symptom but basically the same problem, i.e., a 
buggy BIOS spinning too much time in SMM code.

Jung-uk Kim