1 files changed, 34 insertions, 0 deletions
diff --git a/tools/regression/pthread/unwind/sem_wait_cancel.cpp b/tools/regression/pthread/unwind/sem_wait_cancel.cpp
new file mode 100644
index 000000000000..45f881c521fe
--- /dev/null
+++ b/tools/regression/pthread/unwind/sem_wait_cancel.cpp
@@ -0,0 +1,34 @@
+/* Test stack unwinding for libc's sem */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <semaphore.h>
+#include <unistd.h>
+
+#include "Test.cpp"
+
+static sem_t sem;
+
+static void *
+thr(void *arg __unused)
+{
+	Test t;
+
+	sem_wait(&sem);
+	printf("Bug, thread shouldn't be here.\n");
+	return (0);
+}
+
+int
+main()
+{
+	pthread_t td;
+
+	sem_init(&sem, 0, 0);
+	pthread_create(&td, NULL, thr, NULL);
+	sleep(1);
+	pthread_cancel(td);
+	pthread_join(td, NULL);
+	check_destruct();
+	return (0);
+}