Discuss how the operating system virtualize memory in Figure 2.3

INTRODUCTION TO OPERATING SYSTEMS 5 1 2 #include #include #include #include "common.h" 3 4 5 6 7 8 9 // al 10 11 12 // a2 // a 3 13 int main(int argc, char *argv[]) { int *p = malloc(sizeof(int)); assert (p != NULL); printf(" (d) address pointed to by p: %p ", getpid(), p); *p = 0; while (1) { Spin (1); *P = *p + 1; printf("(%) p: %d ", getpid(), *p); } return 0; } Figure 2.3: A Program That Accesses Memory (mem.c) 14 15 16 17 // 24 18 19 20