From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759180AbZBEUPe (ORCPT ); Thu, 5 Feb 2009 15:15:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752491AbZBEUP0 (ORCPT ); Thu, 5 Feb 2009 15:15:26 -0500 Received: from extu-mxob-2.symantec.com ([216.10.194.135]:38503 "EHLO extu-mxob-2.symantec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753488AbZBEUP0 (ORCPT ); Thu, 5 Feb 2009 15:15:26 -0500 Date: Thu, 5 Feb 2009 20:14:42 +0000 (GMT) From: Hugh Dickins X-X-Sender: hugh@blonde.anvils To: wli@movementarian.org cc: Ingo Molnar , Jeremy Fitzhardinge , Linux Kernel Mailing List , Linux Memory Management List Subject: Re: pud_bad vs pud_bad In-Reply-To: <20090205195817.GF10229@movementarian.org> Message-ID: References: <498B2EBC.60700@goop.org> <20090205184355.GF5661@elte.hu> <498B35F9.601@goop.org> <20090205191017.GF20470@elte.hu> <20090205194932.GB3129@elte.hu> <20090205195817.GF10229@movementarian.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 5 Feb 2009, wli@movementarian.org wrote: > > The RW bit needs to be allowed to become read-only for hugetlb COW. > Changing it over to the 32-bit method is a bugfix by that token. If there's a bugfix to be made there, of course I'm in favour: but how come we've never seen such a bug? hugetlb COW has been around for a year or two by now, hasn't it? Hugh