HW1. Brief answers please.

1. OSPP Chapter 2 #3

2. OSPP Chapter 2 #4

3. Explain why it is unsafe for a kernel interrupt handler to run on
the user stack. Give a clear example that illustrates the problem.

4. OSPP Chapter 2 #12. Give code snippet and measured times.

5. OSPP Chapter 2 #13

6. OSPP Chapter 2 #14