Microsoft KB Archive/153948

= TN3270E May Encounter Unexpected Application Exception =

Article ID: 153948

Article Last Modified on 11/19/2003

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APPLIES TO


 * Microsoft SNA Server 3.0, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 2.11 Service Pack 1, when used with:
 * Microsoft Windows NT 4.0

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This article was previously published under Q153948





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: kbbug kbfix kbnetwork KB153948

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