r, strerror(r), PTHREAD_BARRIER_SERIAL_THREAD);
TESTX(r, pthread_mutex_lock(&mtx), EOWNERDEAD, "");
TEST(r, pthread_join(td, &res), "");
r, strerror(r), PTHREAD_BARRIER_SERIAL_THREAD);
TESTX(r, pthread_mutex_lock(&mtx), EOWNERDEAD, "");
TEST(r, pthread_join(td, &res), "");