mirror of
https://github.com/Zygo/bees.git
synced 2025-11-03 11:40:34 +01:00
1b9b437c11
There was a 4th tree mod log crash that showed up in testing. It can
be reproduced or eliminated by applying or reverting d2311e698578
("btrfs: relocation: Delay reloc tree deletion after merge_reloc_roots")
to a 5.4.x kernel before 5.4.54.
Unfortunately, the test can only run if several other patches that
fixed other bugs in d2311e698578 are applied or removed at the same time.
Commit d2311e698578 introduces a bug which destroys filesystems under test
long before tree mod log failures can be reproduced in testing. One of
those patches also fixes tree mod log issue #4. I do not know which one,
but since kernels after 5.1 cannot run without all of those patches, I do
not think it matters.
Tree mod issue #4 is the reason why the tree mod workaround is still
required on all kernels before 5.4. The issue still exists on older
LTS kernels, e.g. 4.9.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>