From d8e77a0b636485364d70b86addf0c76bf9bccc4f Mon Sep 17 00:00:00 2001 From: "Uladzislau Rezki (Sony)" Date: Mon, 23 Jun 2025 20:40:35 +0200 Subject: [PATCH] lib/test_vmalloc.c: restrict default test mask to avoid test warnings When the vmalloc test is built into the kernel, it runs automatically during the boot. The current-default "run_test_mask" includes all test cases, including those which are designed to fail and which trigger kernel warnings. These kernel splats can be misinterpreted as actual kernel bugs, leading to false alarms and unnecessary reports. To address this, limit the default test mask to only the first few tests which are expected to pass cleanly. These tests are safe and should not generate any warnings unless there is a real bug. Users who wish to explicitly run specific test cases have to pass the run_test_mask as a boot parameter or at module load time. Link: https://lkml.kernel.org/r/20250623184035.581229-2-urezki@gmail.com Signed-off-by: Uladzislau Rezki (Sony) Reviewed-by: Baoquan He Cc: Harry Yoo Cc: Suren Baghdasaryan Cc: David Wang <00107082@163.com> Signed-off-by: Andrew Morton --- lib/test_vmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c index 7264781750c96..c1966cf72ab89 100644 --- a/lib/test_vmalloc.c +++ b/lib/test_vmalloc.c @@ -41,7 +41,7 @@ __param(int, nr_pages, 0, __param(bool, use_huge, false, "Use vmalloc_huge in fix_size_alloc_test"); -__param(int, run_test_mask, INT_MAX, +__param(int, run_test_mask, 7, "Set tests specified in the mask.\n\n" "\t\tid: 1, name: fix_size_alloc_test\n" "\t\tid: 2, name: full_fit_alloc_test\n" -- 2.47.2