October 12, 20232 yr Hi, I have been running Unraid for a couple of years without problems, but recently I get kernel panics trying to mount the cache pool. This results usualy in two frozen cores root@NAS0:/boot# /usr/sbin/zpool import -N -o autoexpand=on -d /dev/nvme0n1p1 -d /dev/nvme1n1p1 6597617673992789075 cache Message from syslogd@NAS0 at Oct 12 16:19:49 ... kernel:VERIFY3(size <= rt->rt_space) failed (281442900570112 <= 2168373248) Message from syslogd@NAS0 at Oct 12 16:19:49 ... kernel:PANIC at range_tree.c:436:range_tree_remove_impl() How can I solve this problem?
October 12, 20232 yr Author Same problem root@NAS0:~# /usr/sbin/zpool import -o readonly -d /dev/nvme0n1p1 cache Message from syslogd@NAS0 at Oct 12 20:55:22 ... kernel:VERIFY3(size <= rt->rt_space) failed (281442900570112 <= 2168373248) Message from syslogd@NAS0 at Oct 12 20:55:22 ... kernel:PANIC at range_tree.c:436:range_tree_remove_impl()
October 13, 20232 yr Community Expert In that case suggest re-formatting the pool and restoring the data from a backup.
October 13, 20232 yr Author Thank you for your help. As per your suggestion I have replaced the NVME drives and rebuilt the cache pool and am now restoring from backup.
October 15, 20232 yr This has been occurring to me as well. The system is now no longer able to start the array, only in maintenance mode. Mounting the cache drive in read only and getting all the data off it works. Will reformat the drive and try again.
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