In order to keep tests from hanging forever, this adds an alarm signal to each test run. This assumes an individual test doesn't take longer than 30 seconds.

Signed-off-by: Kees Cook keescook@chromium.org --- tools/testing/selftests/kselftest_harness.h | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h index 2d90c98eeb67..941d9391377f 100644 --- a/tools/testing/selftests/kselftest_harness.h +++ b/tools/testing/selftests/kselftest_harness.h @@ -696,6 +696,7 @@ void __run_test(struct __test_metadata *t) t->passed = 1; t->trigger = 0; printf("[ RUN ] %s\n", t->name); + alarm(30); child_pid = fork(); if (child_pid < 0) { printf("ERROR SPAWNING TEST CHILD\n"); @@ -744,6 +745,7 @@ void __run_test(struct __test_metadata *t) } } printf("[ %4s ] %s\n", (t->passed ? "OK" : "FAIL"), t->name); + alarm(0); }

static int test_harness_run(int __attribute__((unused)) argc,