Ok. Here are just some general comments. Almost all of them relate to the smasher e5 code

• to get e5 to work the smasher needs to be higher than the victim in the stack.
• Kurt and Lauren's e5 code ran fine when I added a newline to
  • printf ("Mo-o-m! One of my siblings just crashed my stack!!!\n");

Big array created at: 0x41825c50
Big array created at: 0x4181bff0
Big array created at: 0x41812390
Big array created at: 0x41808730
Mo-o-m! One of my siblings just crashed my stack!!!

• several people handed in word docs. Please only submit plain text files.

Example of e5 solution

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


void  *entry (void *arg)
{
  /*  */
  int array[150000] = {0};
  int *tmp = (int *) arg;
  int num = *tmp;
  int i = 0;
  int j = num - 1;
  sleep(1);   

  printf("Address  %p\n", (void*) &i);
  if (num > 1)
   {
        entry(&j);
   }
 }



void *entry2 (void *arg)
{
  int i = 712;
  printf("To Crash %p\n", (void*) &i);
  while (i == 712) { 
 }
printf ("Mo-o-m! One of my siblings just crashed my stack!!!\n");
}



/* the parent thread starts executing in main */

int main ()
{
  int ret;
  pthread_t child, child2;
  int value = 16;
  ret = pthread_create (&child, NULL, entry, &value);
  if (ret == -1) {
    perror ("pthread_create failed");
    exit (-1);
  }
  ret = pthread_create (&child2, NULL, entry2, NULL);
  if (ret == -1) {
    perror ("pthread_create failed");
    exit (-1);
  }
  if (ret == -1) {
    perror ("pthread_detach failed");
    exit (-1);
  }
  pthread_exit (NULL);
}

Outputs:

raz@Sonata:~$ gcc -o sm smasher.c -lpthread
raz@Sonata:~$ ./sm
To Crash 0x7f708e5240fc
Address  0x7f708ed250f8
Address  0x7f708ec928f8
Address  0x7f708ec000f8
Address  0x7f708eb6d8f8
Address  0x7f708eadb0f8
Address  0x7f708ea488f8
Address  0x7f708e9b60f8
Address  0x7f708e9238f8
Address  0x7f708e8910f8
Address  0x7f708e7fe8f8
Address  0x7f708e76c0f8
Address  0x7f708e6d98f8
Address  0x7f708e6470f8
Mo-o-m! One of my siblings just crashed my stack!!!
Segmentation fault
raz@Sonata:~$