From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762756AbXHCTNv (ORCPT ); Fri, 3 Aug 2007 15:13:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756581AbXHCTNn (ORCPT ); Fri, 3 Aug 2007 15:13:43 -0400 Received: from mail.fieldses.org ([66.93.2.214]:59118 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755611AbXHCTNn (ORCPT ); Fri, 3 Aug 2007 15:13:43 -0400 Date: Fri, 3 Aug 2007 15:13:36 -0400 To: Trond Myklebust Cc: Jeff Garzik , Linux Kernel Mailing List , Andrew Morton , Michal Piotrowski Subject: Re: NFSv4 poops itself Message-ID: <20070803191336.GA14682@fieldses.org> References: <46A9EAB0.3090306@garzik.org> <1185543187.6586.10.camel@localhost> <1185556178.6586.40.camel@localhost> <46AA2872.9040800@garzik.org> <1185557340.6586.51.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1185557340.6586.51.camel@localhost> User-Agent: Mutt/1.5.16 (2007-06-11) From: "J. Bruce Fields" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 27, 2007 at 01:29:00PM -0400, Trond Myklebust wrote: > On Fri, 2007-07-27 at 13:16 -0400, Jeff Garzik wrote: > > Trond Myklebust wrote: > > > Jeff and Bruce, could you please try to reproduce the problem after > > > either applying patches 001 to 004 or just the single NFS_ALL patch > > > from > > > > > > http://client.linux-nfs.org/Linux-2.6.x/2.6.23-rc1/ > > > > > > It's not easily reproducible here. Any hints on triggering the behavior? > > I suspect that the problem may involve mixing O_RDWR with O_RDONLY > and/or O_WRONLY file access. Bruce might have a better suggestion, > though. I haven't done any more work to identify when exactly the problem is triggered, but I did confirm that I could reproduce the problem reliably with current git, but *not* with current git plus your 4-patch nfs-all. --b.