diff mbox series

[v3,05/10] selftests/mm: Print some details when uffd-stress gets bad params

Message ID 20250228-mm-selftests-v3-5-958e3b6f0203@google.com (mailing list archive)
State New
Headers show
Series selftests/mm: Some cleanups from trying to run them | expand

Commit Message

Brendan Jackman Feb. 28, 2025, 4:54 p.m. UTC 
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(-)

Comments

Dev Jain Feb. 28, 2025, 5:26 p.m. UTC | #1 
On 28/02/25 10:24 pm, Brendan Jackman wrote:
> So this can be debugged more easily.
> 
> Signed-off-by: Brendan Jackman <jackmanb@google.com>

Reviewed-by: Dev Jain <dev.jain@arm.com>
diff mbox series

Patch

diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c
index ec842bbb9f18e291fa51de0ed8d1fbf9aaf14372..efe2051c393096e237d942c04a264b6611a6e127 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)",
+			bytes, page_size, nr_threads);
 		usage();
 	}