Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!cbmvax!daveh From: daveh@cbmvax.UUCP (Dave Haynie) Newsgroups: comp.sys.amiga Subject: Re: The Next Generation Message-ID: <2867@cbmvax.UUCP> Date: Wed, 25-Nov-87 13:20:28 EST Article-I.D.: cbmvax.2867 Posted: Wed Nov 25 13:20:28 1987 Date-Received: Sun, 29-Nov-87 01:18:48 EST References: <517@zippy.eecs.umich.edu> Organization: Commodore Technology, West Chester, PA Lines: 21 in article <517@zippy.eecs.umich.edu>, pla@zippy.eecs.umich.edu (Paul Anderson) says: > My feeling is that it is a complete waste of time to talk > about adding an MMU without removing the need for MEMF_PUBLIC, > since no amount of address translation is going to overcome > this "security" hole. I don't mind having publicly accesible > memory, mind you, but if the OS depends on it, that is bad news. You can't have everything. If you want purely protected tasks with no MEMF_PUBLIC associated with them, then you have to pass messages by value instead of by reference. Then all of a sudden, your nice, fast AmigaOS starts turning into a slow pig like the things that run on Apollos and Suns. Maybe as an option. Or maybe someone will port one of the other OSs over for folks who want it; they say nearly any popular OS will run on an '851 based system. > Paul Anderson -- Dave Haynie Commodore-Amiga Usenet: {ihnp4|uunet|rutgers}!cbmvax!daveh "The B2000 Guy" PLINK : D-DAVE H BIX : hazy "I can't relax, 'cause I'm a Boinger!"