From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755856AbYJHVJX (ORCPT ); Wed, 8 Oct 2008 17:09:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754054AbYJHVJO (ORCPT ); Wed, 8 Oct 2008 17:09:14 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:47710 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753976AbYJHVJO (ORCPT ); Wed, 8 Oct 2008 17:09:14 -0400 Date: Wed, 8 Oct 2008 23:08:54 +0200 From: Ingo Molnar To: Jeremy Fitzhardinge Cc: Suresh Siddha , "hpa@zytor.com" , "tglx@linutronix.de" , "arjan@linux.intel.com" , "Pallipadi, Venkatesh" , "linux-kernel@vger.kernel.org" , yinghai@kernel.org Subject: Re: [patch 3/7] x86, cpa: make the kernel physical mapping initialization a two pass sequence Message-ID: <20081008210854.GA14309@elte.hu> References: <20080923210035.413932000@linux-os.sc.intel.com> <20080923211444.369122000@linux-os.sc.intel.com> <48EA798D.1090303@goop.org> <20081007015833.GO15609@linux-os.sc.intel.com> <48EB8008.1020700@goop.org> <20081007205845.GP15609@linux-os.sc.intel.com> <48ED0E22.8080809@goop.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48ED0E22.8080809@goop.org> User-Agent: Mutt/1.5.18 (2008-05-17) 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,DNS_FROM_SECURITYSAGE autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] 0.0 DNS_FROM_SECURITYSAGE RBL: Envelope sender in blackholes.securitysage.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jeremy Fitzhardinge wrote: > Suresh Siddha wrote: >> On Tue, Oct 07, 2008 at 08:28:08AM -0700, Jeremy Fitzhardinge wrote: >> >>> Well, that's OK. We just need to preserve the original page permissions >>> when fragmenting the large mappings. (This isn't a case that affects >>> Xen, because it will already be 4k mappings.) >>> >> >> Jeremy, Can you please check if the appended patch fixes your issue and Ack >> it? Test booted on three different 64bit platforms with and without >> DEBUG_PAGEALLOC. >> > > This patch works fine under Xen. Thanks for the quick fix. > > Tested-by: Jeremy Fitzhardinge applied to tip/x86/pat, thanks guys! If it fails testing for some reason then it might not make the first v2.6.28 pull request, but it's definitely moving in the right direction so the PAT/TLB changes seem v2.6.28 worthy. Ingo