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Date:      Mon, 10 Mar 2008 12:24:49 -0400
From:      John Baldwin <jhb@FreeBSD.org>
To:        freebsd-acpi@FreeBSD.org
Cc:        freebsd-bugs@FreeBSD.org, linimon@FreeBSD.org
Subject:   Re: kern/121558: Supermicro X7SB4 Fatal trap 12 when ACPI disabled
Message-ID:  <200803101224.49792.jhb@freebsd.org>
In-Reply-To: <200803101322.m2ADMwJ8004377@freefall.freebsd.org>
References:  <200803101322.m2ADMwJ8004377@freefall.freebsd.org>

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On Monday 10 March 2008 09:22:58 am linimon@freebsd.org wrote:
> Synopsis: Supermicro X7SB4 Fatal trap 12 when ACPI disabled
> 
> Responsible-Changed-From-To: freebsd-bugs->freebsd-acpi
> Responsible-Changed-By: linimon
> Responsible-Changed-When: Mon Mar 10 13:22:31 UTC 2008
> Responsible-Changed-Why: 
> Over to maintainer(s).
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=121558

It's not really an ACPI bug if it panics when ACPI is disabled.  We'd really 
need a stack trace and the panic messages for the non-ACPI kernel.  The first 
instruction of ioapic_get_vector() is a push, and I don't see how that could 
trigger a page fault (maybe if %esp was hosed?).

-- 
John Baldwin



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