#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/mman.h>
#include <errno.h>



#define PAGESIZE (4096)

int main(int argc, char *argv[])
{
	char *c,*safe;
	pid_t pid;
	char buffer[256];
	int err;
	pid = getpid();
	sprintf(buffer,"/usr/bin/pmap %d", pid);
	safe = malloc(1024*1024);
	while (1) {
		c = mmap(NULL, PAGESIZE, PROT_NONE, MAP_ANON | MAP_PRIVATE, 0, 0);
		if (c == MAP_FAILED) {
			err = errno;
			break;
		}
	}
	free(safe);
	printf("errno %d\n",err);
	system(buffer);
}