From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753723Ab0IVWui (ORCPT ); Wed, 22 Sep 2010 18:50:38 -0400 Received: from terminus.zytor.com ([198.137.202.10]:45683 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753625Ab0IVWue (ORCPT ); Wed, 22 Sep 2010 18:50:34 -0400 Message-ID: <4C9A881B.9010309@zytor.com> Date: Wed, 22 Sep 2010 15:50:03 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100907 Fedora/3.1.3-1.fc13 Thunderbird/3.1.3 MIME-Version: 1.0 To: David Rientjes CC: Bjorn Helgaas , Thomas Gleixner , Ingo Molnar , x86@kernel.org, Yinghai Lu , linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86: tidy e820 output References: <20100922172744.19085.41844.stgit@bob.kio> <201009221220.34066.bjorn.helgaas@hp.com> <4C9A4AAF.3030503@zytor.com> <201009221253.01049.bjorn.helgaas@hp.com> <4C9A51DC.5020009@zytor.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 On 09/22/2010 03:46 PM, David Rientjes wrote: > On Wed, 22 Sep 2010, H. Peter Anvin wrote: > >>> It's true, they don't (well, everything below 4G still lines up, but >>> not above that). Do you like this any better? >>> >> >> That's fine with me. I don't mind the [mem ] bracket either if you >> think it's useful. >> > > This patch is going to break our userspace parsing scripts if you change > the output format. Admittedly, we're probably one of the few users who > actually parses this output, but we do have reasons to do it for our > firmware. If there was some improvement being introduced here, we'd > happily handle multiple regexs (we constantly add new patterns when new > kernels are released), but I'm not seeing how this is better. Kernel messages are not an ABI or API. The user space API for this stuff is /sys/firmware/memmap. -hpa