[Bug 259796] [zfs] datasets corrupted when moving between openzfs on 12.3-BETA* and 13.0-RELEASE zfs

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259796

Fabian Keil <fk@fabiankeil.de> changed:

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                 CC|                            |fk@fabiankeil.de

--- Comment #1 from Fabian Keil <fk@fabiankeil.de> ---
I haven't tried openzfs-kmod but with the ZFS code in 12-STABLE
and 11-STABLE splitting large blocks can lead to silent data
corruption when receiving incremental streams with a block size
change on the receiving side.

For details please have a look at:
<https://github.com/openzfs/zfs/issues/6224>
and:
<https://www.fabiankeil.de/sourcecode/electrobsd/ElectroBSD-12-2b469d555267c-2021.11.12-zfs-risk-data-corruption-sysctl.diff>

You could try the referenced test script to see if this is
an issue with openzfs-kmod as well. As the upstream bug is
still open it seems likely to me.

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