#include <sys/mman.h>

int main()
{
	unsigned long nr_vma = 0;

        while (1) {
		if (mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_SHARED|MAP_POPULATE, -1, 0) == MAP_FAILED)
			break;
		nr_vma++;
        };

        printf("pid:%d nr_vma:%lu\n", getpid(), nr_vma);
        pause();
        return 0;
}