[Bug 282622] zfs snapshot corruption when using encryption

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282622

--- Comment #5 from Lexi Winter <ft@hemlock.eden.le-fay.org> ---
> That's interesting. can you reproduce the error reliably?

when ZFS encryption was enabled, syncoid (part of sanoid) would reproduce the
problem every few days.  more snapshots would gradually become inaccessible and
'permanent errors' listed in zpool status would grow over time until the server
was rebooted.

i've since disabled encryption on all filesystems (other than the pool's root
filesystem) and the problem no longer occurs.

> How much memory?

32GB.

> Any zfs sysctls?

vfs.zfs.min_auto_ashift=12

> vfs.zfs.arc.max?

vfs.zfs.arc.max: 0

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