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From: u31b3hs@cip-s01.informatik.rwth-aachen.de (Michael Haardt)
Newsgroups: comp.os.minix
Subject: Question about memory access in PC MINIX 1.5.10
Message-ID: <3890@rwthinf.UUCP>
Date: 24 Jan 91 10:03:57 GMT
Sender: news@rwthinf.UUCP
Reply-To: u31b3hs@cip-s01.informatik.rwth-aachen.de (Michael Haardt)
Organization: Informatik RWTH Aachen
Lines: 16

From: u31b3hs%cip-s01.informatik.rwth-aachen.de@undido.bitnet

Hello world!

Today, I have only one simple question: Is it possible for a setuid root
process to read and write each memory adress without using /dev/mem or
/dev/kmem? If this possibility exists, it will improve speed of
adressing video memory.  I am interested in two things: Will this be
able in PC MINIX 1.5.10 with a 286 or a 386 processor? If ok, did
someone wrote a short assembler function, callable from c, which
performs this function?

Michael Haardt

(u31b3hs%cip-s01.informatik.rwth-aachen.de@unido.bitnet)
----------------------------- Namaskaar -------------------------------