Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933819AbYGCHJk (ORCPT ); Thu, 3 Jul 2008 03:09:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752859AbYGCG6D (ORCPT ); Thu, 3 Jul 2008 02:58:03 -0400 Received: from out01.mta.xmission.com ([166.70.13.231]:43559 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751817AbYGCEll (ORCPT ); Thu, 3 Jul 2008 00:41:41 -0400 From: ebiederm@xmission.com (Eric W. Biederman) To: Mike Travis Cc: "H. Peter Anvin" , Jeremy Fitzhardinge , "Eric W. Biederman" , Christoph Lameter , Linux Kernel Mailing List , Ingo Molnar , Andrew Morton , Jack Steiner References: <20080604003018.538497000@polaris-admin.engr.sgi.com> <485BF8F5.6010802@goop.org> <485BFFC5.6020404@sgi.com> <486912C4.8070705@sgi.com> <48691556.2080208@zytor.com> <48691E8B.4040605@sgi.com> <48694B3B.3010600@goop.org> <486A61A7.1000902@zytor.com> <486A68DD.80702@goop.org> <486A9D4F.8010508@goop.org> <486AA72B.6010401@goop.org> <486AC9D9.9030506@zytor.com> <486AD6BD.9080600@sgi.com> <486ADD67.1020809@sgi.com> <486ADD9F.3000305@zytor.com> <486C062C.3090408@sgi.com> Date: Wed, 02 Jul 2008 21:34:17 -0700 In-Reply-To: <486C062C.3090408@sgi.com> (Mike Travis's message of "Wed, 02 Jul 2008 15:50:20 -0700") Message-ID: User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-SA-Exim-Connect-IP: 24.130.11.59 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-DCC: XMission; sa02 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Mike Travis X-Spam-Relay-Country: X-Spam-Report: * -1.8 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa02 1397; Body=1 Fuz1=1 Fuz2=1] * 0.0 XM_SPF_Neutral SPF-Neutral Subject: Re: [crash, bisected] Re: [PATCH 3/4] x86_64: Fold pda into per cpu area X-SA-Exim-Version: 4.2 (built Thu, 03 Mar 2005 10:44:12 +0100) X-SA-Exim-Scanned: Yes (on mgr1.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 828 Lines: 24 Mike Travis writes: > will only boot and run with gcc-4.2.0, and does the "failure at grub" screen > with > gcc-4.2.4 ...! Do these tests have an early serial console enabled? I want to confirm that the failure is very early in boot before or just as we reach C code. If you don't have an early console we could be failing late in the process just not have visibility. > Any other suggestions? If you have a serial console to add a little bit of instrumentation super duper early. Although looking at the generated objects might be just as interesting. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/