Functionality of virtual memory subsystem:

- Test page table.

6	pt-grow-stack
6	pt-big-stk-obj
6	pt-grow-pusha

- Test paging behavior.

2	page-linear
3	page-parallel
3	page-shuffle
5	page-merge-seq
5	page-merge-par

- Test "mmap" system call.

2	mmap-read
2	mmap-write
2	mmap-shuffle

2	mmap-twice

2	mmap-unmap
1	mmap-exit

3	mmap-clean

2	mmap-close
2	mmap-remove