New ZFSv28 patchset for 8-STABLE: Kernel Panic

[Jean-Yves Avenard]

tried to force a zpool import

got a kernel panic:
panic: solaris assert: weight >= space && weight <= 2 * space, file:
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c,
line: 793

cpuid = 5
KDB: stack backtrace
#0: 0xffffffffff805f64be at kdb_backtrace
#1 ..  panic+0x187
#2 .. metaslab_weight+0xe1
#3: metaslab_sync_done+0x21e
#4: vdev_sync_done
#5: spa_sync+0x6a2
#6 txg_sync_thread+0x147
#7: fork_exit+0x118
#8: fork_trampoline+0xe

uptime 2m25s..

sorry for not writing down all the RAM addressed in the backtrace ...

Starting to smell very poorly :(