Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751500AbYJSJHW (ORCPT ); Sun, 19 Oct 2008 05:07:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750751AbYJSJHJ (ORCPT ); Sun, 19 Oct 2008 05:07:09 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:56683 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750719AbYJSJHI (ORCPT ); Sun, 19 Oct 2008 05:07:08 -0400 Date: Sun, 19 Oct 2008 05:07:02 -0400 From: Christoph Hellwig To: Eric Sandeen Cc: Martin Michlmayr , Tobias Frost , linux-kernel@vger.kernel.org, debian-arm@lists.debian.org, xfs@oss.sgi.com, kernel@wantstofly.org, Hiroki KUMAGAI Subject: Re: XFS filesystem corruption on the arm(el) architecture Message-ID: <20081019090702.GA1925@infradead.org> References: <1222893502.5020.40.camel@moria> <20081002004556.GB30001@disturbed> <48E4213E.9090508@sandeen.net> <20081016212500.GA27228@deprecation.cyrius.com> <48F7BC9F.4080909@sandeen.net> <20081017070109.GA30726@deprecation.cyrius.com> <48F89E0F.6030307@sandeen.net> <20081018085752.GS25834@deprecation.cyrius.com> <20081019014830.GI31761@disturbed> <48FAA445.9050800@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48FAA445.9050800@sandeen.net> User-Agent: Mutt/1.5.18 (2008-05-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 879 Lines: 26 On Sat, Oct 18, 2008 at 10:06:45PM -0500, Eric Sandeen wrote: > This is probably the vmap cache aliasing problem that we paid a bit of > attention to a few months ago, no? Shouldn't the cachepolicy switch take care of that? But yes, there are various problems with I/O on vmap regions with virtually indexed caches, see: http://www.spinics.net/lists/linux-arch/msg04301.html http://tree.celinuxforum.org/CelfPubWiki/JapanTechnicalJamboree21?action=AttachFile&do=get&target=celf_discussions.pdf Actually, looking again at the second document it shows exactly the symptoms you're seeing. > > -Eric > > ---end quoted text--- -- 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/