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From: walton@tybalt.caltech.edu.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: ASDG rrd bug (?)
Message-ID: <2028@cit-vax.Caltech.Edu>
Date: Fri, 13-Mar-87 00:56:41 EST
Article-I.D.: cit-vax.2028
Posted: Fri Mar 13 00:56:41 1987
Date-Received: Sat, 14-Mar-87 00:59:50 EST
References: <708@watcgl.UUCP> <1483@vice.TEK.COM>
Sender: news@cit-vax.Caltech.Edu
Reply-To: walton@tybalt.caltech.edu.UUCP (Steve Walton)
Distribution: comp
Organization: Calfornia Institute of Technology
Lines: 23
Keywords: ASDG RRD size
Summary: Don't make it too big

In article <1483@vice.TEK.COM> mmcp@vice.UUCP (Mark McPherson) writes:
>I use the ASDG RRD to hold all of TDI's Modula-2 symbol and link
>files during compilation.  RRD size is set a 1 megabyte, and the
>files occupy about 800K of this space; Amy has 1.5 megabytes total
>memory.  Routine resets reveal an empty vd0:.  It is not necessary
>to hang the machine in order to accomplish this.  I had supposed
>that the compiler (which has some known bugs) might be responsible
>for doing this, but perhaps it's an RRD bug?

I thought I had the same problem on my system (512K RRD with 1 Meg
Amiga).  As Perry Kivilowitz explained to me, that isn't the problem
at all.  AmigaDOS puts some of its own data structures (100+K worth)
in the low end of your fast memory on bootup.  So, if you try to create
a 1 MB RRD on a 1.5MB machine, the RRD "borrows" chip RAM to do the job.
Under these conditions, the RRD often doesn't recover.  Moral:  follow
Perry's recommended maximum size in his Mountlist as posted;  they're
there for a reason.
    Mild flame:  On a related topic, I was shocked to hear that only
about 20 people have sent ASDG $10 for the RRD.  There must be hundreds
of you out there using it, and if you don't send in the $10, you'll
never get anything like it again.  (Yes, I am one of the 20.)

						Steve Walton