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Q182706: Application Exception in Snaexp.exe After Deleting LUA Pool

Article: Q182706
Product(s): Microsoft SNA Server
Version(s): WINDOWS:3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0
Operating System(s): 
Keyword(s): 
Last Modified: 15-MAR-2000

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The information in this article applies to:

- Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0 
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SYMPTOMS
========

SNA Manager generates an application exception error after the user deletes an
LUA pool and then stops the TN3270 service. This behavior can be reproduced
using the steps below.

1. Start SNA Manager with a mainframe connection containing a range of
  configured LUA LUs.

2. Create an LUA pool and assign the LUs to it.

3. Start the server, activate the connection, and start the TN3270 service.

4. Connect a TN3270 client session.

5. Delete the TN3270 or LUA pool.

6. Delete the LUA LUs from the connection. DO NOT SAVE the configuration yet.

7. Stop the TN3270 service.

The following exception messages will appear:

  SnaExp.exe - Application Error
  The instruction at "0x67709190" referenced memory at "0x00000002". The memory
  could not be "read".

  Click "OK"

  SnaExp.exe - Application Error
  The instruction at "0x762b12b6" referenced memory at "0x00000008". The memory
  could not be "read".

CAUSE
=====

SNA Manager does not release the pointer to the LU from the user object.

STATUS
======

Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0
SP1, 3.0 SP2, and 3.0 SP3. We are researching this problem and will post new
information here in the Microsoft Knowledge Base as it becomes available.


Microsoft has confirmed this to be a problem in SNA Server version 4.0. This
problem was corrected in the latest SNA Server version 4.0 U.S. Service Pack.
For information on obtaining this Service Pack, query on the following word in
the Microsoft Knowledge Base (without the spaces):

  S E R V P A C K


Additional query words:

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Keywords          :  
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ400 kbSNAServ300SP3 kbSNAServ300SP1 kbSNAServ300SP2
Version           : WINDOWS:3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0
Issue type        : kbbug
Solution Type     : kbfix

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