1#include <liblockdep/mutex.h>
 2
 3void main(void)
 4{
 5	pthread_mutex_t a, b;
 6
 7	pthread_mutex_init(&a, NULL);
 8	pthread_mutex_init(&b, NULL);
 9
10	pthread_mutex_lock(&a);
11	pthread_mutex_lock(&b);
12	pthread_mutex_lock(&a);
13}