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From: perry@sfsup.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: ASDG rrd bug (?)
Message-ID: <1190@sfsup.UUCP>
Date: Thu, 12-Mar-87 10:01:00 EST
Article-I.D.: sfsup.1190
Posted: Thu Mar 12 10:01:00 1987
Date-Received: Sat, 14-Mar-87 06:33:21 EST
References: <708@watcgl.UUCP>
Distribution: comp
Organization: AT&T-IS, Summit N.J. USA
Lines: 43

In article <708@watcgl.UUCP>, fdfishman@watcgl.UUCP writes:
> 
>   I  have the rrd set to  1.1 meg of fast and I keep a c,lib and src
>   directory in it.
> 
>   My  problem  is  this:  I am  working on a program using a 640x400
>   screen  with several subwindows  with gadgets.  If my program were
>   to  hang in such a way that I can  not access a gadget or other IO
>   (i.e..  if I were to enter an infinite loop with gadgets active),
>   and  then control  amiga-amiga to softboot, I discover that my rrd
>   is empty.  And all my rrd files are lost.

Your situation cannot  have anything to do with the RRD per se. Maybe
you have a bad ram chip, or the program is actually writing to memory
and scribbles on the RRD?

Was another task  writing  to  the RRD when you hit reset? If you kill
a write right in the middle, it will leave a bogus sector (as it would
on a floppy).

The RRD checks the ram disk out  very  very completely.  If  anything's
changed during the reset, you'll know about it. It uses sections of ram 
boards that otherwize aren't accessed much. 

A lot of people mistakenly  think the RRD doesn't work, when the culprit
is really weak ram chips that you haven't run into yet. I would strongly
suggest that when you find the  RRD didn't recover, don't assume the rrd
doesn't work (or it decided on a fluke  not  to  work this time) rather,
consider it a warning that something else on your machine is failing.

Given the same environment, the RRD will recover 100 percent of the time.
No exceptions.  If it doesn't recover, something's going on that you want
to know about.

> 
>   I  think that the  rrd is a great tool and my check will be in the
>   mail as soon as I can get it to work with my system.
> 

It seems to me you already  have  it working on your system (since you
indicate that it works whenever your program doesn't crash). 

Perry Kivolowitz