From owner-freebsd-hackers@FreeBSD.ORG Thu May 5 11:05:03 2011 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CCE91106564A for ; Thu, 5 May 2011 11:05:03 +0000 (UTC) (envelope-from se@FreeBSD.org) Received: from nm30-vm4.bullet.mail.ne1.yahoo.com (nm30-vm4.bullet.mail.ne1.yahoo.com [98.138.91.190]) by mx1.freebsd.org (Postfix) with SMTP id 76D718FC17 for ; Thu, 5 May 2011 11:05:03 +0000 (UTC) Received: from [98.138.90.49] by nm30.bullet.mail.ne1.yahoo.com with NNFMP; 05 May 2011 11:05:02 -0000 Received: from [98.138.84.43] by tm2.bullet.mail.ne1.yahoo.com with NNFMP; 05 May 2011 11:05:02 -0000 Received: from [127.0.0.1] by smtp111.mail.ne1.yahoo.com with NNFMP; 05 May 2011 11:05:02 -0000 X-Yahoo-Newman-Id: 920406.25000.bm@smtp111.mail.ne1.yahoo.com Received: from [192.168.119.12] (se@81.173.144.96 with plain) by smtp111.mail.ne1.yahoo.com with SMTP; 05 May 2011 04:05:02 -0700 PDT X-Yahoo-SMTP: iDf2N9.swBDAhYEh7VHfpgq0lnq. X-YMail-OSG: 4NrwiX0VM1ncV4o4x9Sa4_srkER1h0FNvlnxpGjbEQM4ZmK lhrT4ertKMSiGn3EmKpTvEPN.9K7L1c2xDwe0KX_MdGC8ZVtz4pQGfAxa_aF tedwNnYSW0.rIMtZs4Zxpmfax7uXpRSXH62TqHeOv8.Ccw8d2w7_uFntasyW yRYpatySTQpHyF59qsJret93zANqkFEMtclVlHn3LOvoUCaaDtjROyVRPlJr UIwIj3ubzTtzytK4NmlAjhGhPu34Dc4enOHWITJAR6PGLrsA06d82fVec1PP xl6t0RkENUX3foMI2XIWhiXTowP05krddkoBFPwQHmt4dIsyXQrBTFf.NF5q YuA5lwqdC_Adrt74B0Rei70ZqFbCDdiW0_ufZNn6OwheUaf.9rB7rtYgM3xq wxo4nvYI4i425nIXKN._zQtLeQvhCQb80gNs5iX9AdhL_xhBqYo7ohoZF1hA niUZj58Dqfw-- X-Yahoo-Newman-Property: ymail-3 Message-ID: <4DC2845B.5040401@FreeBSD.org> Date: Thu, 05 May 2011 13:04:59 +0200 From: Stefan Esser User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8.1.18) Gecko/20081105 Thunderbird/2.0.0.18 ThunderBrowse/3.2.2.1 Mnenhy/0.7.5.666 MIME-Version: 1.0 To: FreeBSD Hackers References: <4DC26533.5010904@FreeBSD.org> In-Reply-To: <4DC26533.5010904@FreeBSD.org> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: ZFS pool lost X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 May 2011 11:05:03 -0000 Sorry for the follow-up to my own posting, but I noticed, that I left out significant information. The system is an Athlon64 (X2, but was running with SMP disabled at the time) in 32 bit mode (i386) with 4GB RAM running 8-STABLE in a ZFS only configuration (one UFS partition was mounted but not accessed; it contains an emergency system which allows me to boot the exact kernel and access /rescue in exactly the version that was installed on ZFS). The panic occurs under 8-STABLE/i386 and with identical message when booting a -CURRENT live file-system from CD. The ZPOOL consists of 3 1TB drives in a raidz1 configuration, of which only some 40GB were free. The panic message reads (under -CURRENT, but it is the same when booting 8-STABLE): panic: solaris assert: ss == NULL, file: /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/space_map.c, line: 109 No dumps are currently available (I installed a -CURRENT into the normally used SWAP space), but I could try to add a new drive. I'm willing to analyze and debug this, if there is any chance of recovery. As I understand the situation, the inconsistency in the ZPOOL has been caused by some locking or processing error during the file move and there is no chance, to identify the cause of the file-system corruption in this state. Any ideas? Best regards, STefan Am 05.05.2011 10:52, schrieb Stefan Esser: > I just lost my 2TB ZFS pool while moving some large files (ISO images) > under a current stable. The system paniced with a message very similar > to the one reported in > > http://unix.derkeiler.com/Mailing-Lists/FreeBSD/current/2009-05/msg00181.html . > > Seems, that the on-disk structure is damaged, since the identical panic > happens even when I try to import into a fresh -CURRENT with its newer > ZFS code. > > Is there any chance to recover my data? I have copies of some critical > information, but no easily restorable complete backups and thus I´m very > interested in getting (most of) this pool working again ... > > Any ideas or help? > > Thanks in advance! > > STefan