From: greve AT rs1 DOT thch DOT uni-bonn DOT de (Thomas Greve)
Subject: Re: Exceptions and go32
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Date: Wed, 15 Jul 92 23:03:25 NFT

> 
> I've found that I got a lot of exception 14's (paging faults) running
> cc1plus.  It was ver reliable and happened on a lot of source files,
> so I started looking for a bug somewhere.  It turned out that I had
> the RAS precharge time set too low on my system, and was hitting a
> marginal RAM chip.  Bummer.  Setting the RAS precharge from 3 to 5
> cycles made the problem go away.  Some users have noted that adding a
> wait state also fixes problems, and that these problems are NOT
> specific to go32.
My 486-ETEQ-board bought early this year has a sort of `Landmark'-
feature that makes disk-intensive programs crash: `hidden refresh'.

Whatever this is: if you enable it, DOS runs 5% (in words: five percent)
faster -- according to Landmark, BUT it crashes some programs. OS/2
crashes fastest...

This seems to be a typical sort of Landmark-optimization: Landmark shows
a higher number, but system doesn't run stable anymore -- what make this
`feature' quite useless... ;-(

				- Thomas

   greve AT rs1 DOT thch DOT uni-bonn DOT de
   unt145 AT dbnrhrz1