Smith decides that every thread in his processes ought to have its own protected stack – all other regions in a process would be fully shared. Does this make sense?

Question

What will be an ideal response?

Answer 1

If every thread has its own protected stack, then each must have its own address space. Smith’s idea is better described as a set of single-threaded processes, most of whose regions are shared. The advantage of sharing an address space has thus been lost.