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Date:      Mon, 1 Nov 2004 19:02:32 -0800 (PST)
From:      Doug White <dwhite@gumbysoft.com>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        Deng XueFeng <dsnofe@yahoo.com.cn>
Subject:   Re: CPUTYPE?=athlon-xp breaks loader (was Re: instant reboot when trying to load recent RELENG_5 kernel)
Message-ID:  <20041101190046.J56441@carver.gumbysoft.com>
In-Reply-To: <200411011752.34180.jhb@FreeBSD.org>
References:  <20041031194121.FE2D.DSNOFE@yahoo.com.cn> <20041031222154.50A5.DSNOFE@yahoo.com.cn> <200411011752.34180.jhb@FreeBSD.org>

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On Mon, 1 Nov 2004, John Baldwin wrote:

> Your BIOS writer needs to be beaten with a blunt instrument.  They are trying
> to enter protected mode themselves and not handling the fact that they can be
> called from vm86 mode.  There's not much FreeBSD can do about narrow-minded,
> kludgey BIOS code.

ISTR that some BIOSen try to play this game because they are trying to see
if UDMA works.  Try demoting the disk to PIO in the BIOS; FreBSD ignores
this setting when configuring disks, so its safe to leave that way.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org



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