Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uakari.primate.wisc.edu!crdgw1!sixhub!davidsen
From: davidsen@sixhub.UUCP (Wm E. Davidsen Jr)
Newsgroups: comp.unix.sysv386
Subject: Re: Intel SVR4 Boot BUG
Keywords: SVR4 Bug
Message-ID: <2359@sixhub.UUCP>
Date: 23 Nov 90 03:34:07 GMT
References: <976@lewis.OZ>
Reply-To: davidsen@sixhub.UUCP (bill davidsen)
Organization: *IX Public Access UNIX, Schenectady NY
Lines: 20

In article <976@lewis.OZ> steve@lewis.OZ (Steve Pattinson) writes:

| I believe it may have something to do with the mapping of the
| 384K of RAM between 640K and 1Meg.  My machine includes this
| with EXTENDED memory giving :- 
| 				Base Memory  :  640K
| 				Extended "   : 3456K
| 
| totalling 4096K or 4 Megs which corresponds to the actual amount
| of memory installed.

  I think you're right. Several of the m.b.'s I have used warn me not to
enable mapping if I have more than 1MB, because it puts two physical
addresses at the same logical address (or some such). I would turn it
off if I could.
-- 
bill davidsen - davidsen@sixhub.uucp (uunet!crdgw1!sixhub!davidsen)
    sysop *IX BBS and Public Access UNIX
    moderator of comp.binaries.ibm.pc and 80386 mailing list
"Stupidity, like virtue, is its own reward" -me