#include <stdio.h>
#include <pthread.h>

#define THREADS 500000

void *
worker(void *arg)
{
	sleep(5000);
	pthread_exit(NULL);
}

int
main(void)
{
	int i, error;
	pthread_t *thr;
	pthread_attr_t attr;

	if ((thr = malloc(THREADS * sizeof(pthread_t))) == NULL)
		err(-1, "malloc");

	pthread_attr_init(&attr);

	if ((error = pthread_attr_setstacksize(&attr, 2048)) != 0)
		errc(-1, error, "setstacksize");

	for (i = 0; i < THREADS; i++) {
		if (pthread_create(&thr[i], NULL, worker, NULL) != 0)
			err(-1, "pthread_create[%d]", i);
	}

	printf("done creating\n");

	for (i = 0; i < THREADS; i++) {
		if (pthread_join(thr[i], NULL) != 0)
			err(-1, "pthread_join[%d]", i);
	}

	return (0);
}