From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757003AbZCPQNK (ORCPT ); Mon, 16 Mar 2009 12:13:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752520AbZCPQM4 (ORCPT ); Mon, 16 Mar 2009 12:12:56 -0400 Received: from gw.goop.org ([64.81.55.164]:56790 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752184AbZCPQMz (ORCPT ); Mon, 16 Mar 2009 12:12:55 -0400 Message-ID: <49BE7A84.2030503@goop.org> Date: Mon, 16 Mar 2009 09:12:52 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.19 (X11/20090105) MIME-Version: 1.0 To: Ingo Molnar CC: "H. Peter Anvin" , Yinghai Lu , Linux Kernel Mailing List Subject: Re: [crash] Re: Latest brk patchset References: <49BC413B.5020104@zytor.com> <49BC4CAC.202@goop.org> <49BC4DB6.9070403@zytor.com> <49BCA03D.3020605@goop.org> <20090315203802.GA14625@elte.hu> <49BD70EF.7010204@goop.org> <20090315212854.GA23960@elte.hu> <49BD8F15.4020301@goop.org> <20090316085402.GC1062@elte.hu> In-Reply-To: <20090316085402.GC1062@elte.hu> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo Molnar wrote: >> And the resulting kernel booted fine under qemu with 1Gbyte of >> memory. I'll try on real hardware a bit later, but it doesn't >> seem like something that should be affected by qemu vs native, >> unless it has something to do with the specific e820 map. >> > > Note that the crash was reproducible and it very clearly went > away when i excluded those commits from tip:master. > Yep, and it looks like the kind of problem those changes might cause. But I can't reproduce it, and its not obvious to me what's actually going wrong. Any chance you could bisect the failure down to a specific changeset, and print "start", "max_pfn_mapped" and "tables" where it fails? Thanks, J