Justin C. Miller 863555ec6b Clean up process memory on exit. ...

Additionally, there were several bug fixes needed to allow this:
- frame_allocator was allocating its frame_blocks from the heap, causing
  a circular dependency. Now it gives itself a page on its own when
  needed.
- frame_allocator::free was putting any trailing pages in a block back
  into the list after the current block, so they would be the next block
  iterated to.
- frame_allocator::free was updating the address it was looking for
  after freeing some pages, but not the count it was looking for, so it
  would eventually free all pages after the initial address.

2019-04-06 11:19:38 -07:00

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