From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id j04MHgr10895 for ; Tue, 4 Jan 2005 17:17:42 -0500 Received: from storix.com (mill-adnc_internal-206-71-178-18.adnc.com [206.71.178.18] (may be forged)) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id j04MHfOu031196 for ; Tue, 4 Jan 2005 17:17:41 -0500 Received: from [192.168.1.126] (65.106.88.139.ptr.us.xo.net [65.106.88.139]) by storix.com (Postfix) with ESMTP id DB6F21592C for ; Tue, 4 Jan 2005 13:56:10 -0800 (PST) From: rich turner Message-Id: <1104877190.10802.15.camel@rich> Mime-Version: 1.0 Date: Tue, 04 Jan 2005 14:19:51 -0800 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] root filesystem snapshots Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: LVM general discussion and development in the past i have read a number of posts related to problems with doing snapshots of logical volumes that contain the root filesystem. i am able to replicate the problem here as well, the system just hangs. can anyone tell me specifically what the problem relates to and if there is a fix available? i have downloaded the latest LVM2 source and there is no mention of it in WHATS_NEW. i would like to warn people should they decide to do a snapshot of a logical volume that contains the root filesystem. under what circumstances will i run into this problem? is it a certain level of LVM? a certain level of the kernel? a certain level of device-mapper? a certain filesystem type? also, i have seen problems with doing snapshots of filesystems using ext3. i assume this is related to the VFS lock patch. should i be able to perform snapshots of ext3 filesystems without failure?