From: kevin.fong@uttsbbs.uucp (Kevin Fong) 
Newsgroups: comp.os.msdos.desqview
Subject: SYSTEM LOCKUPS W/DV2.41
Date: 17 Aug 92 23:44:00 GMT
Distribution: world
Organization: The Transfer Station BBS, Danville, CA - 510-837-4610/837-5591
Reply-To: kevin.fong@uttsbbs.uucp (Kevin Fong) 

This is a second copy of the following message.  I'm not sure if the
first copy made it into the net distribution (I didn't get any replies):

I need some assistance in pinpointing the cause of what appears to be
random lockups on my system.  I run a BBS system with two incoming
lines, and one local node.  At random times of the day, the system will
lockup solid requiring a coldboot (none of the keyboard keys are active,
etc...complete powerdown or reset button required).

My configuration is as follows:

40mhz 386 (using AMD 386 chip)
PC Technologies chipset
AMI BIOS
Standard COM I/O (3F8, 2F8, IRQ4, IRQ3)
Two 16550A UARTS
Two 14.4 V.32bis modems

CONFIG.SYS:

device=c:\qemm\qemm386.sys ram nosh
buffers = 1
files = 80
stacks = 0,0
break on
shell=c:\command.com /e:1024 /p

AUTOEXEC.BAT:

echo off
c:\qemm\loadhi /r:2 c:\dos50\smartdrv.exe c d
cls
path c:\qemm
path
c:\qemm;c:\pcb;c:\dos50;c:\utility\norton;c:\;
cd \pcb1
if exist clear2go del clear2go
prompt $p$g
c:\qemm\loadhi /r:1 share
pdel *.bak /s
cd \dv
dv

QEMM version 6.02
DV version 2.41

I open three windows, all 568K bytes (largest allowable).  Two use the
com ports, one doesn't.  Under DV setup, I have "OPTIMIZE
COMMUNICATIONS" set to YES, "ALLOW SWAPPING" set to "YES" and "MANAGE
PRINTER CONTENTION" set to NO.  In each window setup, I have "USES
COMMUNICATIONS PORTS" set to 1 (for node1) and 2 (for node2).  Node 3
(the local node) is set to NO.  VIRTUALIZE TEXT: is set to T.  Timer
slices (ticks) is set to 2 foreground, 2 background.

DOS SMARTDRV.EXE version 4.00 is the disk caching used.  I have shadow
ram on for both bios and video.  The system has 8meg of 70ns memory.  I
am using MS/DOS 5.0.

The system locks up randomly.  Generally, however, I notice that it
locks up during a file transfer using DSZ (Zmodem package from Omen
Technologies... using the .COM version , dated May, 1992).  I doubt it's
the DSZ software though, but who knows... I've tried different releases,
all the same... and it doesn't always lock up when using DSZ.

I'm also using the BNU 1.70 fossil driver when performing a UUCICO
session (Internet/usenet feed exchange).  However, it is NOT loaded
in the config.sys and is loaded only during the mail session, and then
immediately unloaded (Manifest shows that it is not resident after I
unload it).

The only other thing I can mention that would be of value I suppose is
that I am running PCBoard software, release 14.5a/E3.

I'm completely stumped.  I have tried various motherboards, with the
same result, so I really doubt it's memory or the motherboard (all
motherboards were different makes and speeds).  Memory chips were also
different.  I have also tried different serial cards, so I doubt it's
that.

Can anyone shed some light?  Am I missing something?  Other sysops are
successfully running this combination of software, so I must be going
wrong somewhere.

Help!

Kevin (kevin.fong@uttsbbs.uucp)