Chapter 18, Problem 6PE

Explanation of Solution

Access-protection mechanism

• The access protection mechanism is used to implement page level locking.
• First reads operation is considered.
• A process is allowed to read a page only after it read-locks the page.
• It is implemented by using mprotect for initially turning off read permissions to all pages, for the process.
• When the process tries to access an address in a page, then there occurs a protection violation...