Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269250AbUIIDQb (ORCPT ); Wed, 8 Sep 2004 23:16:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269262AbUIIDQb (ORCPT ); Wed, 8 Sep 2004 23:16:31 -0400 Received: from omx3-ext.sgi.com ([192.48.171.20]:48593 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S269250AbUIIDQ2 (ORCPT ); Wed, 8 Sep 2004 23:16:28 -0400 Subject: Re: Major XFS problems... From: Greg Banks To: Bill Davidsen Cc: linux-kernel@vger.kernel.org In-Reply-To: References: <20040908154434.GE390@unthought.net> <20040908123524.GZ390@unthought.net> <1094661418.19981.36.camel@hole.melbourne.sgi.com> Content-Type: text/plain Organization: Silicon Graphics Inc, Australian Software Group. Message-Id: <1094700180.19981.85.camel@hole.melbourne.sgi.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Thu, 09 Sep 2004 13:23:00 +1000 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1428 Lines: 40 On Thu, 2004-09-09 at 05:06, Bill Davidsen wrote: > Greg Banks wrote: > > On Thu, 2004-09-09 at 01:44, Jakob Oestergaard wrote: > > > >>SMP systems on 2.6 have a problem with XFS+NFS. > > > > > > Knfsd threads in 2.6 are no longer serialised by the BKL, and the > > change has exposed a number of SMP issues in the dcache. Try the > > two patches at > > > > http://marc.theaimsgroup.com/?l=linux-kernel&m=108330112505555&w=2 > > > > and > > > > http://linus.bkbits.net:8080/linux-2.5/cset@1.1722.48.23 > > > > (the latter is in recent Linus kernels). If you're still having > > problems after applying those patches, Nathan and I need to know. > > Do I read you right that this is an SMP issue and that the NFS, quota, > backup and all that are not relevant? The first issue is NFS-specific. The second one is an ancient dcache bug from before 2.6 which NFS changes in 2.6 uncovered; however it could affect any filesystem with or without NFS. Neither have anything to do with quota or backup per se, except that backup might generate enough load to help them happen. Greg. -- Greg Banks, R&D Software Engineer, SGI Australian Software Group. I don't speak for SGI. - 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/