[fortani]

Nope, somebody managed to reproduce this issue even with zfs_dmu_offset_next_sync=0

https://github.com/openzfs/zfs/issues/15526#issuecomment-182...

[keep_reading]

Apply this patch, it appears to be the real fix.

https://github.com/openzfs/zfs/pull/15571/files?diff=split&w...