Date: Thu, 05 May 2011 13:04:59 +0200 From: Stefan Esser <se@FreeBSD.org> To: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: ZFS pool lost Message-ID: <4DC2845B.5040401@FreeBSD.org> In-Reply-To: <4DC26533.5010904@FreeBSD.org> References: <4DC26533.5010904@FreeBSD.org>
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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
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