/* 
 * allocate memory until we can't get any more, and fill allocated space 
 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

int main(void) {
    int * space;
    const int incr = 1L << 29;
    int count = 0;
    do {
        printf("call #%d to malloc for 0x%lx bytes ....\n", 
                ++count, incr*sizeof(*space));
        space = malloc(incr*sizeof(*space));
        memset(space, 1, incr*sizeof(*space));
        /* sleep(1); */
    } while (space != NULL);

    return 0;
}