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Date: Wed, 20 Dec 2006 01:42:48 -0500
From: Chuck Ebbert <76306.1226@compuserve.com>
Subject: Re: [Bug 7505] Linux-2.6.18 fails to boot on AMD64 machine
To: Andrew Morton <akpm@osdl.org>
Cc: Zhang Yanmin <yanmin.zhang@intel.com>,
       "Eric W. Biederman" <ebiederm@xmission.com>,
       bugme-daemon@bugzilla.kernel.org, linux-kernel@vger.kernel.org
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On Tue, 19 Dec 2006 17:29:00 -0800, Andrew Morton wrote:

> Quoting the bug report:

> general protection fault: 013b [1] PREEMPT 

That '013b' is critical information.

Bit 0: 1: exception source is external to the processor
Bit 1: 1: there is a problem with an interrupt descriptor in the IDT
Bit 2: n/a
Bits 15-3: index of the problem descriptor

So an external interrupt occurred, the system tried to use interrupt
descriptor #39 decimal (irq 7), but the descriptor was invalid.
-- 
MBTI: IXTP