Application Exception in Snaexp.exe After Deleting LUA Pool

• Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 4.0

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.

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, and 3.0 SP2. 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:

Keywords : kbfix4.00.sp1 prodsna snatn3270 snamanager
Version : WINDOWS:3.0,3.0 SP1,3.0 SP2,4.0
Platform : WINDOWS
Issue type : kbbug