Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933198AbXIAWOs (ORCPT ); Sat, 1 Sep 2007 18:14:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932208AbXIAWOk (ORCPT ); Sat, 1 Sep 2007 18:14:40 -0400 Received: from mail.suse.de ([195.135.220.2]:45459 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932192AbXIAWOj (ORCPT ); Sat, 1 Sep 2007 18:14:39 -0400 To: David Miller Cc: byron.bbradley@gmail.com, linux-kernel@vger.kernel.org Subject: Re: XFS Fails Quality Assurance Tests on ARM References: <20070830.213901.48806818.davem@davemloft.net> From: Andi Kleen Date: 02 Sep 2007 00:14:38 +0200 In-Reply-To: <20070830.213901.48806818.davem@davemloft.net> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 836 Lines: 18 David Miller writes: > From: Byron Bradley > Date: Fri, 31 Aug 2007 03:12:46 +0000 (UTC) > > > Anybody got any ideas of how we fix this? > > I don't know how much testing XFS gets on ARM, but one thing that some > ARM chips have is D-cache aliasing problems and one thing XFS uses a > lot is virtual remapping of various data structures via vmap(). > > This might be what is causing the problems. AFAIK XFS uses vmap() mainly during log replay. If David's theory was true then the failures must be seen during tests that do this. -Andi - 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/