From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261233AbUL1OHN (ORCPT ); Tue, 28 Dec 2004 09:07:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261768AbUL1OHN (ORCPT ); Tue, 28 Dec 2004 09:07:13 -0500 Received: from out002pub.verizon.net ([206.46.170.141]:58108 "EHLO out002.verizon.net") by vger.kernel.org with ESMTP id S261233AbUL1OHD (ORCPT ); Tue, 28 Dec 2004 09:07:03 -0500 From: Gene Heskett Reply-To: gene.heskett@verizon.net Organization: Organization: None, detectable by casual observers To: linux-kernel@vger.kernel.org Subject: Re: unkillable processes using samba, xfs and lvm2 snapshots (k 2.6.10) Date: Tue, 28 Dec 2004 09:07:01 -0500 User-Agent: KMail/1.7 Cc: Gildas LE NADAN References: <41D14251.4030704@inha.fr> In-Reply-To: <41D14251.4030704@inha.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200412280907.01681.gene.heskett@verizon.net> X-Authentication-Info: Submitted using SMTP AUTH at out002.verizon.net from [151.205.45.252] at Tue, 28 Dec 2004 08:07:02 -0600 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 28 December 2004 06:24, Gildas LE NADAN wrote: >Hi, > >I experience hangs on samba processes on a filer using xfs over lvm2 > as data partitions, when there is active snapshots of the xfs > partitions. > >I have a clone of the production server (same software, same > hardware) where the situation can be reproduced perfectly. > >Testings showed that the result was the same, whether the snapshots > were mounted or not : smbd processes are locked and unkillable > while the machine is normaly working otherwise, except software > reboot is impossible and hardware reset is needed. > >I noticed Brad Fitzpatrick's case in kernel 2.6.10 changelog >(http://lkml.org/lkml/2004/11/14/98) and tested kernel 2.6.10 today >without success. > >Configuration is the following : >- supermicro m/b with dual Xeon 2,8Ghz (SMT is active) >- 1 GB ram, >- adaptec u320 raid controler >- kernel 2.6.10 >- debian sarge >- samba 3 >- LVM2 >- XFS with quota turned on > >All software are from debian sarge packages, except the kernel. > >I'm not able to determine if the problem is more xfs, device mapper > or samba related, and was not able to do extensive testings (using > a different filesystem, testing with a different daemon, etc...), > but SMT/SMP testings showed that this is not a SMP/SMT related > problem. > >I've compiled the kernel with the debugging options, so I might > provide additional informations if needed as in Brad's case. > >Sincerely, >Gildas LE NADAN >(Please CC me as I didn't suscribe to LKML) I have a somewhat similar case here, samba processses are unkillable, but I can do a software reboot. Something is also killing amandad, and I lost the backup of this machine last night. The amanda logs are bereft of any info and I've no clue that its happened except a message from amanda that the client access timed out on this machine. This was while running 2.6.10-rc3-mm1-V0.33-04 which ran stably for 8 days previously. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.30% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attorneys please note, additions to this message by Gene Heskett are: Copyright 2004 by Maurice Eugene Heskett, all rights reserved.