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  2. FIX: The SNA Server service intermittently stops responding in a Host Integration Server 2010 environment

FIX: The SNA Server service intermittently stops responding in a Host Integration Server 2010 environment

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Symptoms

When you run Microsoft Host Integration Server 2010, the SNA Server service may intermittently stop responding, and all sessions are closed.

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Cause

This problem occurs because incorrect pointer references are present when the 64-bit version of the Host Integration Server 2010 Client is used to connect to the server. In this situation, a bogus new pipe extension message that has an incorrect length field is sent to the server. This causes the server to loop infinitely when it processes the message.

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Resolution

Cumulative update information

The fix that resolves this problem is included in cumulative update package 8 for Host Integration Server 2010. For more information about how to obtain the cumulative update package, see Cumulative update package 8 for Host Integration Server 2010 .

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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More Information

After you apply this update, Host Integration Server 2010 supports the following two new pipe extensions:
  • The Clients MAC address (0x1)
  • The Clients OS information (0x2)

When you encounter this problem, an internal SNA Server trace that is started by using the SNA trace utility may display incorrect extension types in a loop that resembles the following:

Extension type 1h, Extension Length
Client MAC Address 51b391f22510
Extension type F352h, Extension Length 65522
Extension type 1h, Extension Length
Client MAC Address 51b391f22510
Extension type F352h, Extension Length 65522

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Keywords: kbqfe, kbfix, kbnotautohotfix, kbexpertiseinter, kbbug, kbsurveynew, kb

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Article Info
Article ID : 2871242
Revision : 1
Created on : 1/7/2017
Published on : 9/4/2013
Exists online : False
Views : 165