From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756016AbZEHLuY (ORCPT ); Fri, 8 May 2009 07:50:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752603AbZEHLuJ (ORCPT ); Fri, 8 May 2009 07:50:09 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:36483 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751755AbZEHLuI (ORCPT ); Fri, 8 May 2009 07:50:08 -0400 Date: Fri, 8 May 2009 13:49:36 +0200 From: Ingo Molnar To: Wu Fengguang Cc: Andrew Morton , LKML , Andi Kleen , Matt Mackall , KOSAKI Motohiro , linux-mm@kvack.org Subject: Re: [PATCH 8/8] pagemap: export PG_hwpoison Message-ID: <20090508114936.GC17129@elte.hu> References: <20090508105320.316173813@intel.com> <20090508111032.121067794@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090508111032.121067794@intel.com> 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 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0001] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Wu Fengguang wrote: > This flag indicates a hardware detected memory corruption on the > page. Any future access of the page data may bring down the > machine. NAK on this whole idea, it's utterly harmful. At _minimum_ /proc/kpageflags should be moved to /debug/vm/ to not have any ABI bindings. Ingo From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id ADC326B003D for ; Fri, 8 May 2009 07:49:07 -0400 (EDT) Date: Fri, 8 May 2009 13:49:36 +0200 From: Ingo Molnar Subject: Re: [PATCH 8/8] pagemap: export PG_hwpoison Message-ID: <20090508114936.GC17129@elte.hu> References: <20090508105320.316173813@intel.com> <20090508111032.121067794@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090508111032.121067794@intel.com> Sender: owner-linux-mm@kvack.org To: Wu Fengguang Cc: Andrew Morton , LKML , Andi Kleen , Matt Mackall , KOSAKI Motohiro , linux-mm@kvack.org List-ID: * Wu Fengguang wrote: > This flag indicates a hardware detected memory corruption on the > page. Any future access of the page data may bring down the > machine. NAK on this whole idea, it's utterly harmful. At _minimum_ /proc/kpageflags should be moved to /debug/vm/ to not have any ABI bindings. Ingo -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org