We are starting testing our application on W2K3 and getting unexplained
problems. It is proving difficult to isolate the exact cause but we are
starting to see some trends. The result is the session crashing with the
following general message in the Event Log
Universe error; Unhandled exception raised at address 0x77bd4528
Access violation Attempted to read from address 0x000000d8
Binary data is processor CONTEXT structure
Sometimes the address to be read is 0x00000000
So far we have found that it is very much less likely to occur if we do a
LOGTO DEV rather than logging on directly to DEV.
Can anyone help with information about the difference between a direct login
and a LOGTO which may have some bearing on this.
This situation does appear to be associated with running programs from PROC
and may be influenced by the size of the program. We ran a very simple 3
line PROC and 3 line program all night without a failure.
The general mechanism used as the framework for our application involves
launching programs via PROC and using PROCREAD and PROCWRITE to pass data.
This is an example of the LAYER.STACK
There are currently 1 uniVerse sessions; 1 interactive, 0 phantom
Pid.. User name...... Port name..... Last command
processed................
.
252 ned <telnet:252> telnet:252 runt [ get.input @
0x2F4 ]
Layer type....... Program name.................... Address...
BASIC run machine get.input 0x000002F4
BASIC run machine MAINTLNK 0x00004160
BASIC run machine runt 0x00000B06
Verb
Proc
Proc
Proc
Command Language
Execute
BASIC run machine CALL.ALL.FUNCTION 0x000000DC
Verb
Proc
Proc
Proc
Command Language
Running only basic programs, outside this framework, does not appear to
cause a problem.
We have not managed to get any useful information from DrWatson as this does
not seem to work for a service.
Can anyone give hints as to how to get better information for a UniVerse
session which crashes so we can pass this to IBM. We tried chaning the
MALLOCTRACING flag to 1 but cannot find any output.
We also see at times the @ACCOUNT = 0, @LOGNAME = 0 and @PATH = 00 These
have changed from the original normal values.
We have set up a completely isolated network for W2K3 so everything must be
moved to these machines the old way - floppy disk or CD-ROM. Our network
consists of a W2K3 PDC, a W2K3 member server with UniVerse 10.1 and a XP-Pro
client. All are running on Compaq desktops 1.8GHz, 248Mb RAM
Initially we tried the Personal Edition 10.0.10 on a W2K3 PDC.
We then received the 10.1 version from IBM and tried on the W2K3 PDC
Finally we tried the 10.1 version on a W2K3 member server.
All gave the same results.
I am also posting this on the U2UG so I can view any replies over the
weekend as it is now Friday midday.
Sara Burns
Sara Burns (SEB)
Development Team Leader
Public Trust
Phone: +64 (04) 474-3841 (DDI)
Mobile: 027 457 5974
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