Demo: Two Views of One Address Space

Demo	What it shows
zones-and-pages/	The shell's address space counted both ways: 33 zones, 2,600 pages, 1,100 of them present.
reserve-allocate/	mmap() edits the list of zones and nothing else; the first touch of each page edits the page table and nothing else.

The second waits at prompts, for a second terminal.