From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763109AbYARQVt (ORCPT ); Fri, 18 Jan 2008 11:21:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762369AbYARQVf (ORCPT ); Fri, 18 Jan 2008 11:21:35 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:33394 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762215AbYARQVd (ORCPT ); Fri, 18 Jan 2008 11:21:33 -0500 Date: Fri, 18 Jan 2008 17:21:18 +0100 From: Ingo Molnar To: Andi Kleen Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de, jbeulich@novell.com, venkatesh.pallipadi@intel.com Subject: Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_attr patch series v3) Message-ID: <20080118162118.GA6819@elte.hu> References: <200801161114.239449000@suse.de> <200801181701.04549.ak@suse.de> <20080118160757.GA24507@elte.hu> <200801181716.06093.ak@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200801181716.06093.ak@suse.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Andi Kleen wrote: > > > (except for the white space changes, but that can be redone once > > > everything settled down again). Then it will be bisectable. > > > > it's a revert barrier (within v2.6.25), > > What is a revert barrier? > > Anyways of course the way to handle that is the same as with the other > undo patches: drop the original white space changes > (ddb53b5735793a19dc17bcd98b050f672f) completely and then drop that > undo patch too. The white space changes haven't reached Linus yet so > you can just make them disappear completely from known history. we dont want them to disappear, due to the second half of: http://lkml.org/lkml/2008/1/18/112 we want easy-cleanups first, difficult changes applied second. It's a well-established concept. Ingo