From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753285AbXLFPBT (ORCPT ); Thu, 6 Dec 2007 10:01:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751973AbXLFPBL (ORCPT ); Thu, 6 Dec 2007 10:01:11 -0500 Received: from r00tworld.com ([212.85.137.21]:56103 "EHLO r00tworld.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750954AbXLFPBK (ORCPT ); Thu, 6 Dec 2007 10:01:10 -0500 From: pageexec@freemail.hu To: Mathieu Desnoyers Date: Thu, 06 Dec 2007 15:58:05 +0200 MIME-Version: 1.0 Subject: Re: [patch 06/11] Text Edit Lock - Alternative code for x86 Reply-to: pageexec@freemail.hu CC: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, Andi Kleen , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" Message-ID: <47581C0D.20793.3B77EE8@pageexec.freemail.hu> In-reply-to: <20071206144431.GA11846@Krystal> References: <20071206020441.851817020@polymtl.ca>, <475804F5.4781.35D49FA@pageexec.freemail.hu>, <20071206144431.GA11846@Krystal> X-mailer: Pegasus Mail for Windows (4.41) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-description: Mail message body X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.12 (r00tworld.com [212.85.137.21]); Thu, 06 Dec 2007 15:57:42 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6 Dec 2007 at 9:44, Mathieu Desnoyers wrote: > It is correct to assume that the WP bit will always be activated, in > every configuration, even though we don't use the DEBUG_RODATA ? yes, without it the kernel couldn't rely on page faults to trigger copy-on-write on userland pages for example (just look at what it has to do on the original i386...).