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Q153948: TN3270E May Encounter Unexpected Application Exception

Article: Q153948
Product(s): Microsoft SNA Server
Version(s): WINDOWS:2.11,2.11 SP1
Operating System(s): 
Keyword(s): kbnetwork
Last Modified: 13-JUN-2001

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The information in this article applies to:

- Microsoft SNA Server, versions 2.11, 2.11 SP1, on platform(s):
   - the operating system: Microsoft Windows NT 
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SYMPTOMS
========

The SNA Server 2.11 Service Pack 1 TN3270E Server may experience intermittent
and random access violations.

If this occurs, the SNA Server TN3270E service will log the following event in
the Windows NT application event log:

  Event ID:5

  The TN3270E Service has abnormally terminated.

  EXPLANATION
  An exception (0xC0000005) has occurred that has caused the TN3270E
  Service to terminate.

  ACTION
  Record message and contact technical support.

CAUSE
=====

The TN3270 Server uses a critical section to protect its session control blocks.
However, it was not always using this critical section when it scanned the
control blocks. This can cause an access violation to occur.

STATUS
======

Microsoft has confirmed this to be a problem in SNA Server for Windows NT
versions 2.11 and 2.11.sp1. This problem was corrected in the latest Microsoft
SNA Server 2.11 U.S. Service Pack. For information on obtaining the 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: prodsna tn3270

======================================================================
Keywords          : kbnetwork 
Technology        : kbAudDeveloper kbSNAServSearch
Version           : WINDOWS:2.11,2.11 SP1
Issue type        : kbbug
Solution Type     : kbfix

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