From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757215Ab1DWC0Z (ORCPT ); Fri, 22 Apr 2011 22:26:25 -0400 Received: from terminus.zytor.com ([198.137.202.10]:59688 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757163Ab1DWC0Z (ORCPT ); Fri, 22 Apr 2011 22:26:25 -0400 Message-ID: <4DB238BB.2010204@zytor.com> Date: Fri, 22 Apr 2011 19:26:03 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110403 Fedora/3.1.9-6.fc15 Thunderbird/3.1.9 MIME-Version: 1.0 To: Yuhong Bao CC: chris@csamuel.org, alan@lxorguk.ukuu.org.uk, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: 2.6.38.3 and 2.6.39-rc4 hangs after "Booting the kernel" on quad Pentium Pro system References: <201104222333.25546.chris@csamuel.org> <201104231016.23579.chris@csamuel.org> ,<201104231135.54966.chris@csamuel.org> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/22/2011 06:46 PM, Yuhong Bao wrote: > > If it was really BIOS-e801 and not BIOS-88 returning this, looks like this is probably a kernel bug in the parsing of the results. >>> This would be easy to diagnose with DOS DEBUG with no himem.sys >>> loaded. >> >> Would be happy to try with some instructions if it would help. > Enter these instructions using the A command and execute with the T command: > mov AX, E801 > INT 15 > INT 3 > And provide the results of the AX, BX, CX, and DX registers after the INT 15h. > Executing these from DOS DEBUG won't give you real results, because DOS intercepts this call. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.