From: Brendan Jackman <jackmanb@google.com>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
Shuah Khan <shuah@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>,
linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org,
Brendan Jackman <jackmanb@google.com>
Subject: [PATCH v3 05/10] selftests/mm: Print some details when uffd-stress gets bad params
Date: Fri, 28 Feb 2025 16:54:53 +0000 [thread overview]
Message-ID: <20250228-mm-selftests-v3-5-958e3b6f0203@google.com> (raw)
In-Reply-To: <20250228-mm-selftests-v3-0-958e3b6f0203@google.com>
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..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();
}
--
2.48.1.711.g2feabab25a-goog
next prev parent reply other threads:[~2025-02-28 16:55 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-28 16:54 [PATCH v3 00/10] selftests/mm: Some cleanups from trying to run them Brendan Jackman
2025-02-28 16:54 ` [PATCH v3 01/10] selftests/mm: Report errno when things fail in gup_longterm Brendan Jackman
2025-02-28 17:17 ` Dev Jain
2025-03-06 9:34 ` David Hildenbrand
2025-02-28 16:54 ` [PATCH v3 02/10] selftests/mm: Skip uffd-stress if userfaultfd not available Brendan Jackman
2025-02-28 17:20 ` Dev Jain
2025-02-28 16:54 ` [PATCH v3 03/10] selftests/mm: Skip uffd-wp-mremap " Brendan Jackman
2025-02-28 17:25 ` Dev Jain
2025-03-03 10:48 ` Brendan Jackman
2025-03-03 11:00 ` Dev Jain
2025-02-28 16:54 ` [PATCH v3 04/10] selftests/mm/uffd: Rename nr_cpus -> nr_threads Brendan Jackman
2025-02-28 17:36 ` Dev Jain
2025-03-03 9:47 ` Brendan Jackman
2025-03-03 10:18 ` Dev Jain
2025-03-03 10:34 ` Brendan Jackman
2025-03-03 10:46 ` Dev Jain
2025-02-28 16:54 ` Brendan Jackman [this message]
2025-02-28 17:26 ` [PATCH v3 05/10] selftests/mm: Print some details when uffd-stress gets bad params Dev Jain
2025-02-28 16:54 ` [PATCH v3 06/10] selftests/mm: Don't fail uffd-stress if too many CPUs Brendan Jackman
2025-02-28 17:37 ` Dev Jain
2025-03-05 11:07 ` Brendan Jackman
2025-02-28 16:54 ` [PATCH v3 07/10] selftests/mm: Skip map_populate on weird filesystems Brendan Jackman
2025-02-28 16:54 ` [PATCH v3 08/10] selftests/mm: Skip gup_longerm tests " Brendan Jackman
2025-03-06 9:28 ` David Hildenbrand
2025-03-06 12:42 ` Brendan Jackman
2025-03-06 14:40 ` David Hildenbrand
2025-03-11 13:00 ` Brendan Jackman
2025-03-11 19:53 ` David Hildenbrand
2025-03-12 8:34 ` Brendan Jackman
2025-03-14 12:10 ` David Hildenbrand
2025-03-14 12:17 ` David Hildenbrand
2025-03-14 15:56 ` Brendan Jackman
2025-03-14 21:19 ` David Hildenbrand
2025-02-28 16:54 ` [PATCH v3 09/10] selftests/mm: Drop unnecessary sudo usage Brendan Jackman
2025-02-28 17:26 ` Dev Jain
2025-02-28 16:54 ` [PATCH v3 10/10] selftests/mm: Ensure uffd-wp-mremap gets pages of each size Brendan Jackman
2025-03-05 8:25 ` [PATCH v3 00/10] selftests/mm: Some cleanups from trying to run them Muhammad Usama Anjum
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