From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261279AbULYPQn (ORCPT ); Sat, 25 Dec 2004 10:16:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261518AbULYPQn (ORCPT ); Sat, 25 Dec 2004 10:16:43 -0500 Received: from mail1.skjellin.no ([80.239.42.67]:45194 "EHLO mx1.skjellin.no") by vger.kernel.org with ESMTP id S261279AbULYPQl (ORCPT ); Sat, 25 Dec 2004 10:16:41 -0500 Message-ID: <41CD8438.10207@tomt.net> Date: Sat, 25 Dec 2004 16:16:08 +0100 From: Andre Tomt User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: 2.6.10, lockup on lvrename of a snapshot volume Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org device-mapper snapshots lock up the kernel if you lvrename the snapshot volume. The original volume has to be mounted for this to happen. pvcreate /dev/hdb1 vgcreate testvg /dev/hdb1 lvcreate -L10G -n test testvg mke2fs -j /dev/mapper/testvg-test mount /dev/mapper/testvg-test /mnt lvcreate -s -l 128 -n test_backup testvg/test lvrename testvg test_backup test_backup.tmp SysRq Trace of lvrename: dm_unplug_all [dm_mod] io_shedule sync_buffer sync_buffer __wait_on_bit out_of_line_wait_on_bit sync_buffer wake_bit_function wake_bit_function sync_dirty_buffer ext3_unlockfs [ext3] thaw_bdev __unlock_fs [dm_mod] dm_resume [dm_mod] do_resume [dm_mod] dev_suspend [dm_mod] ctl_ioctl [dm_mod] sys_ioctl syscall_call LVM2 version is 2.00.24 (Debian Sarge userland), kernel 2.6.10 from kernel.org. It has been reported that this affects 2.6.9 also, but I have not verified this myself.