Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754940AbYGGRRu (ORCPT ); Mon, 7 Jul 2008 13:17:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753627AbYGGRRm (ORCPT ); Mon, 7 Jul 2008 13:17:42 -0400 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:42255 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752927AbYGGRRl (ORCPT ); Mon, 7 Jul 2008 13:17:41 -0400 Message-ID: <48724FB4.3090305@sgi.com> Date: Mon, 07 Jul 2008 10:17:40 -0700 From: Mike Travis User-Agent: Thunderbird 2.0.0.6 (X11/20070801) MIME-Version: 1.0 To: "Eric W. Biederman" CC: "H. Peter Anvin" , Jeremy Fitzhardinge , Christoph Lameter , Linux Kernel Mailing List , Ingo Molnar , Andrew Morton , Jack Steiner Subject: Re: [crash, bisected] Re: [PATCH 3/4] x86_64: Fold pda into per cpu area 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> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1112 Lines: 34 Eric W. Biederman wrote: > 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 Hi, Sorry for the delay, been off the past 4 days. I'll see how closely I can narrow down where the fault is. I have been inserting very early printk's to track how far into the startup it gets before bailing. Thanks, Mike -- 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/