BIB-VERSION:: CS-TR-v2.0
          ID:: SBCS//stark/usenix97.ps.Z
       ENTRY:: December 9, 1996
ORGANIZATION:: State University of New York at Stony Brook, Computer Science
       TITLE:: A Distributed Shared Memory Facility for FreeBSD
        TYPE:: Preprint
      AUTHOR:: Souto, Pedro, and Stark, Eugene W.
     CONTACT:: Eugene W. Stark, Department of Computer Science,
                   SUNY at Stony Brook, Stony Brook, NY 11794-4400
                   Tel: 516-632-8444 <stark@cs.sunysb.edu>
        DATE:: January, 1997
   RETRIEVAL:: HTTP from BSD7.CS.SUNYSB.EDU with the URL
		   http://bsd7.cs.sunysb.edu/~stark/REPORTS/usenix97.ps.gz

ABSTRACT::

This paper describes the design and implementation of a distributed shared memory facility we have
implemented for the FreeBSD operating system (a descendant of 4.4BSD that runs on the PC
architecture). Interesting aspects of the design are: (1) the consistency protocol uses unreliable
datagram communication, but is robust with respect to message loss, and in the normal case requires
only two datagrams to handle a read fault; (2) the facility provides a simple programming interface
that does not require any socket or network programming to use; (3) the facility extends the FreeBSD
VM system in a very non-intrusive way.