From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760734AbXISQKk (ORCPT ); Wed, 19 Sep 2007 12:10:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758843AbXISQK3 (ORCPT ); Wed, 19 Sep 2007 12:10:29 -0400 Received: from mx2.suse.de ([195.135.220.15]:43067 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758646AbXISQK2 (ORCPT ); Wed, 19 Sep 2007 12:10:28 -0400 From: Andi Kleen Organization: SUSE Linux Products GmbH, Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg) To: "Jan Beulich" Subject: Re: [PATCH] i386/PAE: avoid temporarily inconsistent pte-s Date: Wed, 19 Sep 2007 18:09:47 +0200 User-Agent: KMail/1.9.6 Cc: linux-kernel@vger.kernel.org References: <46F150CB.76E4.0078.0@novell.com> In-Reply-To: <46F150CB.76E4.0078.0@novell.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200709191809.47351.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 19 September 2007 16:39:39 Jan Beulich wrote: > One more of these issues (which were considered fixed a few releases > back): Other than on x86-64, i386 allows set_fixmap() to replace > already present mappings. Consequently, on PAE, care must be taken to > not update the high half of a pte while the low half is still holding > the old value. Hmm perhaps it would be better to just forbid it on i386 too. Do you know who uses it? -Andi