From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965954AbXIBLyZ (ORCPT ); Sun, 2 Sep 2007 07:54:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965114AbXIBLyN (ORCPT ); Sun, 2 Sep 2007 07:54:13 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:39007 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964926AbXIBLyM (ORCPT ); Sun, 2 Sep 2007 07:54:12 -0400 Date: Sun, 2 Sep 2007 04:54:01 -0700 From: Andrew Morton To: Gabor Kovacs Cc: linux-kernel@vger.kernel.org Subject: Re: User process freezes on NFSv4 client Message-Id: <20070902045401.1b8a347c.akpm@linux-foundation.org> In-Reply-To: <200708161819.14437.kgabor@bolyai.elte.hu> References: <200708161819.14437.kgabor@bolyai.elte.hu> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.19; i686-pc-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 Thu, 16 Aug 2007 18:19:14 -0400 Gabor Kovacs wrote: > Hello All, > > I've got NFSv4 problems on a big partition. Both NFS server and client run > kernel version 2.6.21.6. Exported file system is on an AoE etherdrive > (/dev/etherd/e1.1) device, having no partition table, XFS file system. The > file system is pretty large, 8.9T. Typical file size 1-10M. > > On the client side, after much time (3-7 days) of file intensive task, the > user process freezes. Top command shows a "D" state for it, but many other > command trying to "touch" it, freezes, too. (ps, fuser /nfs_dir, w) None of > the frozen processes can be killed. New processes, however, can access the > nfs4 mounted file system. Any idea? > Next time it happens, please run echo t > /proc/sysrq-trigger then send the output of `dmesg -s 1000000'. Thanks.