From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752204AbXDRERU (ORCPT ); Wed, 18 Apr 2007 00:17:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752667AbXDRERU (ORCPT ); Wed, 18 Apr 2007 00:17:20 -0400 Received: from smtp.osdl.org ([65.172.181.24]:46242 "EHLO smtp.osdl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752204AbXDRERS (ORCPT ); Wed, 18 Apr 2007 00:17:18 -0400 Date: Tue, 17 Apr 2007 21:13:50 -0700 From: Andrew Morton To: florin@iucha.net (Florin Iucha) Cc: Trond Myklebust , Peter Zijlstra , Linus Torvalds , Adrian Bunk , OGAWA Hirofumi , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/4] 2.6.21-rc7 NFS writes: fix a series of issues Message-Id: <20070417211350.ebba1493.akpm@linux-foundation.org> In-Reply-To: <20070418040730.GC24044@iucha.net> References: <1176792399.3035.30.camel@twins> <20070416125905.GA2769@iucha.net> <1176792399.3035.30.camel@twins> <1176796503.3035.33.camel@twins> <87hcrfaqam.fsf@duaron.myhome.or.jp> <20070418011946.11679.34920.stgit@heimdal.trondhjem.org> <20070417195823.943f9472.akpm@linux-foundation.org> <1176865565.6796.16.camel@heimdal.trondhjem.org> <20070418033055.GA24044@iucha.net> <1176868485.6796.42.camel@heimdal.trondhjem.org> <20070418040730.GC24044@iucha.net> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 17 Apr 2007 23:07:30 -0500 florin@iucha.net (Florin Iucha) wrote: > On Tue, Apr 17, 2007 at 11:54:45PM -0400, Trond Myklebust wrote: > > > The good news is that the Gnome session log-in progresses to the point > > > where both top and bottom bars are painted (gray) and the bottom bar > > > is populated with icons (2.6.21-rc7 vanilla stops after displaying the > > > splash). The bad news is that it stops there. > > > > > > Big-copy fails as well, after 2.5G transferred. > > > > > > The process traces are at: > > > > > > http://iucha.net/nfs/21-rc7-nfs1/gnome-session > > > http://iucha.net/nfs/21-rc7-nfs1/big-copy > > > > > > Regards, > > > florin > > > > Could you tell us a bit more about what happens when these hangs occur? > > Does the networking stop too, or just NFS? How about CIFS? > > The networking does not stop, I can ssh into and out of the box > without any problem. > > When 'gnome-session' hangs, it does not react to any clicks on the > terminal or browser icons. If I switch to a virtual console then come > back into X, the panels (or splash) are gray - the icons disappear. I > can switch to a virtual console and give it the three finger salute and > it reboots cleanly. > > When 'big-copy' hangs, if I switch to a different console and run > 'lsof', '[u]mount', or use shell completion on a network mount then that > process goes into D state. I cannot umount the network shares nor > stop autofs. I cannot do a clean reboot, I have to ssh > in and "echo s > /proc/sysrq-trigger; echo u > /proc/sysrq-trigger; > echo b > /proc/sysrq-trigger" . please, do `echo t > /proc/sysrq-trigger' first, send us the result.