1#include <liblockdep/mutex.h>
 2#include "common.h"
 3
 4void main(void)
 5{
 6	pthread_mutex_t a, b, c, d;
 7
 8	pthread_mutex_init(&a, NULL);
 9	pthread_mutex_init(&b, NULL);
10	pthread_mutex_init(&c, NULL);
11	pthread_mutex_init(&d, NULL);
12
13	LOCK_UNLOCK_2(a, b);
14	LOCK_UNLOCK_2(c, d);
15	LOCK_UNLOCK_2(b, d);
16	LOCK_UNLOCK_2(d, a);
17}