[[license text="""
Copyright © 2007 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document under the
terms of the GNU Free Documentation License, Version 1.2 or any later version
published by the Free Software Foundation; with no Invariant Sections, no
Front-Cover Texts, and no Back-Cover Texts.  A copy of the license is included
in the section entitled [[GNU_Free_Documentation_License|/fdl.txt]].
"""]]

Mach's [[microkernel/mach/external_pager_mechanism]].

Mach [[microkernel/mach/IPC]]'s [[microkernel/mach/ipc/sequence_numbering]].

[GNU Hurd Reference Manual: 4.2 Pager
Library](http://www.gnu.org/software/hurd/doc/hurd_5.html#SEC32).