@@ -21,7 +21,7 @@ static void test_limit(void)
map = mmap(NULL, 2 * lims.rlim_max, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, -1, 0);
- ksft_test_result(map == MAP_FAILED, "Failed mmap\n");
+ ksft_test_result(map == MAP_FAILED, "The map failed respecting mlock limits\n");
if (map != MAP_FAILED)
munmap(map, 2 * lims.rlim_max);
@@ -33,8 +33,8 @@ int main(int argc, char **argv)
ksft_print_header();
ksft_set_plan(1);
- if (getuid())
- ksft_test_result_skip("Require root privileges to run\n");
+ if (!getuid())
+ ksft_test_result_skip("The test must be run from a normal user\n");
else
test_limit();
@@ -303,7 +303,12 @@ echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages
CATEGORY="compaction" run_test ./compaction_test
-CATEGORY="mlock" run_test ./on-fault-limit
+if command -v sudo &> /dev/null;
+then
+ CATEGORY="mlock" run_test sudo -u nobody ./on-fault-limit
+else
+ echo "# SKIP ./on-fault-limit"
+fi
CATEGORY="mmap" run_test ./map_populate
The mmap() respects rlimit only for normal users. This test should be run as normal user, without root privileges. Also add back the sudo -u nobody as run_vmtests.sh is run as root most of the times. Skip the test instead if sudo isn't present to lower the privileges. Fixes: b6221771d468 ("selftests/mm: run_vmtests: remove sudo and conform to tap") Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> --- Please fold this patch in the Fixes patch if needed. --- tools/testing/selftests/mm/on-fault-limit.c | 6 +++--- tools/testing/selftests/mm/run_vmtests.sh | 7 ++++++- 2 files changed, 9 insertions(+), 4 deletions(-)