Path: utzoo!utgpu!cunews!bnrgate!bwdls61.bnr.ca!bwdls58!mlord
From: mlord@bwdls58.bnr.ca (Mark Lord)
Newsgroups: comp.os.msdos.apps
Subject: Re: Meaning of "Packed File Is Corrupt" Message??
Keywords: packed file
Message-ID: <5085@bwdls58.UUCP>
Date: 10 Dec 90 14:39:54 GMT
References: <4e61a969.20b6d@apollo.HP.COM> <1068@idcapd.idca.tds.philips.nl> <16069@ists.ists.ca> <1990Dec9.194401.16049@bigsur.uucp>
Sender: mlord@bwdls58.UUCP
Reply-To: mlord@bwdls58.bnr.ca (Mark Lord)
Distribution: na
Organization: Bell-Northern Research, Ottawa, Canada
Lines: 22

In article <1990Dec9.194401.16049@bigsur.uucp> mussar@bcars53.uucp (G. Mussar) writes:
<
<Acutally, the code that unpacks expects that the A20 gate is closed so that
<memory references beyond the end of the last segment will wrap into the first
<64K. The real problem is that the A20 gate is being left open on the 
<malfunctioning system. There are utilities around to display the stat of
<the A20 gate and to turn it off, however, your BIOS should be turning it
<off on POST. I've heard that at least one manufacturers BIOS defaults
<this A20 gate open unless you know the magic incantation to close it. Sigh.
<

Thanks for the wisdom, Gary.  

I had this problem like something wild after installing HYPERDSK for the
first time (older version than current).  Seems it was leaving the gate
wide open and the unpackers were leaving the pasture.  The newer release
doesn't seem to have this problem.  Or maybe it was the QEMM 5.11 upgrade.. ?
-- 
 ___Mark S. Lord__________________________________________
| ..uunet!bnrgate!mlord%bmerh724 | Climb Free Or Die (NH) |
| MLORD@BNR.CA   Ottawa, Ontario | Personal views only.   |
|________________________________|________________________|