diff options
| author | Brendan Jackman <jackmanb@google.com> | 2025-03-11 13:18:16 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-16 22:06:38 -0700 |
| commit | db0f1c138f18296e9c1c91619a0517c05ee50f1b (patch) | |
| tree | f4b755ab80d94d1dde61373382aff295caf56880 /tools | |
| parent | f3b5535abce9f05318ee52de7f0a97be58d032a0 (diff) | |
selftests/mm: print some details when uffd-stress gets bad params
So this can be debugged more easily.
Link: https://lkml.kernel.org/r/20250311-mm-selftests-v4-5-dec210a658f5@google.com
Signed-off-by: Brendan Jackman <jackmanb@google.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/mm/uffd-stress.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c index d6b57e5a2e1d7..4ba5bf13a0108 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -457,7 +457,8 @@ int main(int argc, char **argv) nr_pages_per_cpu = bytes / page_size / nr_parallel; if (!nr_pages_per_cpu) { - _err("invalid MiB"); + _err("pages_per_cpu = 0, cannot test (%lu / %lu / %lu)", + bytes, page_size, nr_parallel); usage(); } |