selftests: coredump: Raise timeout to 2 minutes

JIRA: https://issues.redhat.com/browse/RHEL-113598

commit c6e888d
Author: Nam Cao <namcao@linutronix.de>
Date:   Fri, 11 Apr 2025 17:09:43 +0200

    selftests: coredump: Raise timeout to 2 minutes

    The test's runtime (nearly 20s) is dangerously close to the limit (30s) on
    qemu-system-riscv64:

    $ time ./stackdump_test > /dev/null
    real    0m19.210s
    user    0m0.077s
    sys     0m0.359s

    There could be machines slower than qemu-system-riscv64. Therefore raise
    the test timeout to 2 minutes to be safe.

    Fixes: 15858da ("selftests: coredump: Add stackdump test")
    Signed-off-by: Nam Cao <namcao@linutronix.de>
    Link: https://lore.kernel.org/dd636084d55e7828782728d087fa2298dcab1c8b.1744383419.git.namcao@linutronix.de
    Signed-off-by: Christian Brauner <brauner@kernel.org>

Signed-off-by: Waiman Long <longman@redhat.com>

Author: Waiman-Long

tools/testing/selftests/coredump/stackdump_test.c

@@ -89,7 +89,7 @@ FIXTURE_TEARDOWN(coredump)
 	fprintf(stderr, "Failed to cleanup stackdump test: %s\n", reason);
 }
 
-TEST_F(coredump, stackdump)
+TEST_F_TIMEOUT(coredump, stackdump, 120)
 {
 	struct sigaction action = {};
 	unsigned long long stack;