From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with ESMTP id DD424900194 for ; Thu, 23 Jun 2011 20:59:12 -0400 (EDT) Date: Fri, 24 Jun 2011 02:59:07 +0200 From: Andi Kleen Subject: Re: [PATCH v2 0/3] support for broken memory modules (BadRAM) Message-ID: <20110624005907.GP3263@one.firstfloor.org> References: <1308741534-6846-1-git-send-email-sassmann@kpanic.de> <20110623133950.GB28333@srcf.ucam.org> <4E0348E0.7050808@kpanic.de> <20110623141222.GA30003@srcf.ucam.org> <4E035DD1.1030603@kpanic.de> <4E036A2D.1060402@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4E036A2D.1060402@zytor.com> Sender: owner-linux-mm@kvack.org List-ID: To: "H. Peter Anvin" Cc: Stefan Assmann , Matthew Garrett , linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, tony.luck@intel.com, andi@firstfloor.org, mingo@elte.hu, rick@vanrein.org, rdunlap@xenotime.net On Thu, Jun 23, 2011 at 09:30:37AM -0700, H. Peter Anvin wrote: > On 06/23/2011 08:37 AM, Stefan Assmann wrote: > > > > According to Rick's reply in this thread a damaged row in a DIMM can > > easily cause a few thousand entries in the e820 table because it doesn't > > handle patterns. So the question I'm asking is, is it acceptable to > > have an e820 table with thousands maybe ten-thousands of entries? > > I really have no idea of the implications, maybe somebody else can > > comment on that. > > > > Given that that is what actually ends up happening in the kernel at some > point anyway, hwpoison can poison most pages without any lists. Read Stefan's original patch. The only thing that needs list really is conflict handling with early allocations. -Andi -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org