Page State

Any page in VAS (PAS) of a process can be in one of the three states.

1. Committed: A page state of a page which is mapped to a page frame in physical memory (or to a page-sized entry in a file on disk)
2. Reserved: A page state of a page which been set aside for future use so that it cannot be re-used for any other purpose within the process, but has no associated physical page storage
3. Free: A page state of a page which is available to be reserved