From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423166AbXD3JAl (ORCPT ); Mon, 30 Apr 2007 05:00:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423173AbXD3JAk (ORCPT ); Mon, 30 Apr 2007 05:00:40 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:48836 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423166AbXD3I7s (ORCPT ); Mon, 30 Apr 2007 04:59:48 -0400 Date: Mon, 30 Apr 2007 09:59:16 +0100 From: Christoph Hellwig To: Neil Brown Cc: Zan Lynx , Adrian Bunk , Linux Kernel Subject: Re: [-mm patch] i386: enable 4k stacks by default Message-ID: <20070430085916.GA31397@infradead.org> Mail-Followup-To: Christoph Hellwig , Neil Brown , Zan Lynx , Adrian Bunk , Linux Kernel References: <20070428191927.GN3468@stusta.de> <1177795118.7828.6.camel@localhost> <17973.44824.631204.926723@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <17973.44824.631204.926723@notabene.brown> User-Agent: Mutt/1.4.2.2i X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 30, 2007 at 06:55:52PM +1000, Neil Brown wrote: > On Saturday April 28, zlynx@acm.org wrote: > > On Sat, 2007-04-28 at 21:19 +0200, Adrian Bunk wrote: > > > 4k stacks have become a well-tested feature used fore a long time in > > > Fedora and even in RHEL 4. > > > > So has anyone fixed the bugs involving ext3 and LVM snapshots on top of > > DM mirror? > > Well -mm has a patch which makes stacked block devices much less of an > issue, but this hasn't made it -linus yet - I think the dm developer > isn't happy that dm works properly with it. I get a little tired about this objection. If the particular dm code was racy before and this can in theory make it worse it's their problem, and putting in perfectly fine code will give them an incentive to fix their year old race.