Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!spool.mu.edu!snorkelwacker.mit.edu!bloom-picayune.mit.edu!irene.mit.edu!maurik
From: maurik@irene.mit.edu (Maurik Holtrop)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Intel 80386 POPAD BUG ?
Keywords: 386,INTEL,POPAD
Message-ID: <6JUN91124747@irene.mit.edu>
Date: 6 Jun 91 17:47:47 GMT
Sender: news@athena.mit.edu (News system)
Reply-To: maurik@irene.mit.edu
Organization: MIT Lab for Nuclear Science
Lines: 28
News-Software: VAX/VMS VNEWS 1.4-a4

Anyone know about the POPAD mistery ?

I just recently got 386BUGS.EXE, little program from wuarchive.wust.edu
from the ...\msdos\info where it is called POPADBUG.ZIP. It was written
by John Lauro. (If you want it I can mail it to you also.)

The program claims that there is a bug in the 386 after calling the 
popad instruction. I ran the program and indeed, on my 386/25 which
is 1 1/2 years old, it FAILED THE TEST !  On a friends 386SX it did
not fail, and on the 386/20 at work it did.

Does anyone know what is going on ? Has INTEL been selling faultive
386 chips ? Should I try and get them to replace my 386 chip ?

Could this be the cause of the misterious crashes of windows in
386 enhanced mode ?

(Am I getting paranoid ?)

				Maurik

----------------------------------------------------------------------

    Maurik Holtrop 			Maurik@irene.mit.edu
					Maurik@pierre.mit.edu
					Maurik@mitlns         (bitnet)

-----------------------------------------------------------------------