zfs import panic

[Pawel Jakub Dawidek]

On Mon, Nov 12, 2007 at 06:52:15PM -0200, Alexandre Biancalana wrote:
> Hi list,
> 
>  After an spontaneous reboot this weekend our backup server is
> panic'ing on zfs import. I've the vmcore file but I can't debug this
> with kgdb
> 
> :/var/crash # more info.3
> Dump header from device /dev/ad0s1b
>   Architecture: amd64
>   Architecture Version: 2
>   Dump Length: 103477248B (98 MB)
>   Blocksize: 512
>   Dumptime: Mon Nov 12 14:56:12 2007
>   Hostname:
>   Magic: FreeBSD Kernel Dump
>   Version String: FreeBSD 7.0-BETA2 #0: Mon Nov 12 11:49:07 BRST 2007
>     root@:/usr/src/sys/amd64/compile/MANNY.debug
>   Panic String: solaris assert: ss == NULL, file:
> /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/space_map.c,
> line: 110
>   Dump Parity: 2217569595
>   Bounds: 3
>   Dump Status: good

This looks like http://bugs.opensolaris.org/view_bug.do?bug_id=6458218,
but fix for this bug is already in FreeBSD's version...
To recover your data you can try removing /boot/zfs/zpool.cache file
before loading zfs.ko module, and then try to import your pool with:

	# zpool import -o ro <pool_name>

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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