From: hartkopf@spot.Colorado.EDU (Jeff Hartkopf)
Subject: Re: System 6.0 Reliability
Organization: University of Colorado, Boulder
Date: Tue, 15 Dec 1992 16:12:46 GMT

In article <75595@apple.apple.COM> dlyons@Apple.COM (David A Lyons) writes:
>In article <1992Dec12.042041.27824@colorado.edu> hartkopf@spot.Colorado.EDU (Jeff Hartkopf) writes:
>[...]
>>I have similar problems with System 6.  Applications (especially the 
>>Finder) crash often, and occasionally I get corrupted files.  Sometimes 
>>Hopefully the problem will be fixed in System 6.0.1.
>
>This sounds to me *very* much like a hardware problem.  I don't know of any
>changes to the system software from 5.0.4 to 6.0 that would cause this kind
>of problem, or any change from 6.0 to 6.0.1-in-progress that would solve
>them.
>
>Two suggestions:
>
>  --Contact your hard drive manufacturer to see if other users are

Unfortunately, the hard drive manufacturer is Applied Ingenuity which
has been out of business for some time now.

>  --If you're so inclined, revert to 5.0.4 temporarily and see if the

I've tried booting off a 5.0.4 floppy and running my system from there for
a while, with no problems whatsoever.  Also, back before the release of 
System 6 I *never* had these problems, and I haven't gotten any new hardware
since then.  However, if you think it would be worthwhile I will install 
5.0.4 on my hard drive and run it for a couple of days.

Here, why don't I post a complete description of my problem.  Maybe that
will help you diagnose it.

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

Ever since I've gotten System 6 I've had random crashes and disk 
corruptions, especially (but not only) in the Finder.  Usually the 
crashes involve "unable to load resource" or "GS/OS system" errors, and 
the disk corruptions usually happen as file names where one of the 
characters gets its high bit set, or the files simply won't validate 
in the Finder.  Sometimes the crashes happen regularly (every few 
minutes of using the Finder) and other times the system is fine for a 
while and I think it has fixed itself until....

First off, my system consists of:
- Applied Ingenuity 40 megabyte InnerDrive internal hard disk, 
  partitioned into 2 ProDOS partitions
- 4 megabytes of memory on an AI GS Juice + card (2 megs purchased 
  with the card, 2 later from Quality Computers)
- ZipGS as shipped from Zip Technologies, 8 MHz and 16K cache
- Applied Engineering 2400 baud DataLink internal modem
- 2 Apple 3.5" floppy disk drives
- ImageWriter II printer
- CH Products Mach III joystick
- System 6

I've tried everything I can think of to try to narrow down the problem 
but so far I haven't been successful.  Things I've tried are: removing 
all nonstandard system extensions (NDAs, Inits, etc.), turning my ZipGS 
off, running a memory checker, and booting off a fresh System 6 floppy 
instead of my hard drive.  So far the only thing that has worked is 
booting off a System *5.0.4* floppy (haven't tried reinstalling 5.0.4 on 
my hard drive but I think that would work too.)

My memory checks out OK.  I'm wondering if the problem is a conflict 
with the hard disk.  I've tried running the AI memory checker and AI 
hard-disk partitioning software under System 6 and both crash, 
although they work fine under System 5.0.4.  Has anyone else had 
problems with InnerDrives under System 6?  Has anyone had no 
problems?

Any ideas, anyone?  This is a very annoying problem and I'd really 
like to get it solved.  If anyone else has similar problems please 
post your system setup.  Thanks!


Jeff Hartkopf
University of Colorado at Boulder
Internet: hartkopf@spot.colorado.edu