So this can be debugged more easily.
Signed-off-by: Brendan Jackman jackmanb@google.com --- tools/testing/selftests/mm/uffd-stress.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c index ec842bbb9f18e291fa51de0ed8d1fbf9aaf14372..be0c93f24fccd618f52d54ff36d9a5540f420e46 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -456,7 +456,8 @@ int main(int argc, char **argv)
nr_pages_per_cpu = bytes / page_size / nr_threads; if (!nr_pages_per_cpu) { - _err("invalid MiB"); + _err("pages_per_cpu = 0, cannot test (%lu / %lu / %lu)", + nr_pages_per_cpu, bytes, page_size, nr_threads); usage(); }