Commit 964314344eab ("samples/damon/mtier: support boot time enable setup") is somehow incompletely applying the origin patch [1]. It is missing the part that avoids starting DAMON before module initialization. Probably a mistake during a merge has happened. Fix it by applying the missed part again.
[1] https://lore.kernel.org/20250706193207.39810-4-sj@kernel.org
Fixes: 964314344eab ("samples/damon/mtier: support boot time enable setup") Cc: stable@vger.kernel.org # 6.17-rc1 Signed-off-by: SeongJae Park sj@kernel.org --- samples/damon/mtier.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c index 7ebd352138e4..beaf36657dea 100644 --- a/samples/damon/mtier.c +++ b/samples/damon/mtier.c @@ -208,6 +208,9 @@ static int damon_sample_mtier_enable_store( if (enabled == is_enabled) return 0;
+ if (!init_called) + return 0; + if (enabled) { err = damon_sample_mtier_start(); if (err)