Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761663AbYB2VYo (ORCPT ); Fri, 29 Feb 2008 16:24:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758095AbYB2VYf (ORCPT ); Fri, 29 Feb 2008 16:24:35 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:48589 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753773AbYB2VYe (ORCPT ); Fri, 29 Feb 2008 16:24:34 -0500 Date: Fri, 29 Feb 2008 22:24:21 +0100 From: Ingo Molnar To: Jeremy Fitzhardinge Cc: Mathieu Desnoyers , Linux Kernel Mailing List , "H. Peter Anvin" , Andi Kleen , Zachary Amsden Subject: Re: bad paravirt/Xen interaction in "x86 - Enhance DEBUG_RODATA support - alternatives" Message-ID: <20080229212421.GK27212@elte.hu> References: <47C86D7A.5030608@goop.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47C86D7A.5030608@goop.org> 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 Content-Length: 567 Lines: 15 * Jeremy Fitzhardinge wrote: > The patch "x86 - Enhance DEBUG_RODATA support - alternatives" enables > the kernel for writing by clearing X86_CR0_WP allow privileged writes. > This won't work in a paravirt environment for two reasons: ok, have reverted it and have pushed out a new x86.git. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/