[zfs] panic on import after a crash

[Mickaël Maillot]

Hi,

after a system freeze, my FreeBSD 8-PRERELEASE does not boot anymore:
a ZFS only install on one ssd.
so i take my 9-CURRENT usb key (snapshot from nov 2010) and i go fixit.
kldload /dist/boot/kernel/opensolaris.ko
kldload /dist/boot/kernel/zfs.ko
zpool import mypool
and bam:
http://img684.imageshack.us/img684/9225/panict.jpg
it can be reproduced every time
and i don't know what can i do now, any help would be appreciated.