Files
mirror_zfs/include/sys
Andriy Tkachuk 76fd64ac9f Fix rare cksum errors after rebuild
Currently, after rebuild (aka sequential resilver), checksum
errors can be seen sometimes on the spare vdev or draid spare.
On my laptop, it happens from 2 to 4 times of running
redundancy_draid_spare1 test in a loop for 100 times.

It looks like there's a race in vdev_rebuild_thread() when the
rebuild of space map ranges is finished and we re-enable
allocations from the metaslab too soon: a new allocations may
happen from that metaslab before txg with the rebuilt ranges is
sync-ed, causing undesirable interference.

Solution: wait for the txg to be sync-ed before enabling metaslab.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Akash B <akash-b@hpe.com>
Signed-off-by: Andriy Tkachuk <atkachuk@wasabi.com>
Closes #18307
Closes #18319
Closes #18473
2026-05-04 10:38:46 -07:00
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