| Message ID | 20230526-nolibc-test-no-dump-v1-2-62e724a96db2@weissschuh.net (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 9a75575b81b5639f7ca82c9701fb199401fd6471 |
| Headers | show |
| Series | tools/nolibc: avoid coredumps and speed up tests | expand |
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 76a9a0f362b1..40fb684eaac9 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -831,6 +831,7 @@ static int run_protection(int min, int max) close(STDOUT_FILENO); close(STDERR_FILENO); + prctl(PR_SET_DUMPABLE, 0, 0, 0, 0); smash_stack(); return 1;
The child process forked during stackprotector tests intentionally gets killed with SIGABRT. By default this will trigger writing a coredump. The writing of the coredump can spam the systems coredump machinery and take some time. Timings for the full run of nolibc-test: Before: 200ms After: 20ms This is on a desktop x86 system with systemd-coredumpd enabled. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> --- tools/testing/selftests/nolibc/nolibc-test.c | 1 + 1 file changed, 1 insertion(+)