SNA 3.0 SP1 TN3270 Server Access Violation in SetBestGroups()
ID: Q170660
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The information in this article applies to:
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Microsoft SNA Server, version 3.0 SP1
SYMPTOMS
When a TN3270E print emulator attempts to open a printer session through
the SNA Server 3.0 Service Pack 1 TN3270 Server, the TN3270 server may
encounter the following access violation:
Application exception occurred:
App: tn3servr.DBG (pid=<process id>)
Exception number: c0000005 (access violation)
[data omitted]
function: SetBestGroups
FAULT ->01012c07 8b4804 mov ecx,[eax+0x4] ds:0068e922=????????
CAUSE
This is caused by a problem in the SNA Server 3.0 Service Pack 1 TN3270
server, which was introduced by the addition of support for multiple ports.
STATUS
Microsoft has confirmed this to be a problem in SNA Server version 3.0
Service Pack 1. This problem was corrected in the latest SNA Server
version 3.0 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
MORE INFORMATION
When this problem occurs, the stack back trace looks like the following:
*----> Stack Back Trace <----*
FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
0ca5fc10 01013e60 00183230 0ca5fc34 001849a2 001833c8
tn3servr!SetBestGroups
0ca5fc98 0100faa8 00183230 001849a2 0ca5fcbc 001849a2
tn3servr!SRSGetSNAResourceFirst
0ca5fd54 010184e3 00183230 001849a2 00183888 00000010
tn3servr!SNAGenericSessionStart
0ca5fd70 010179b7 00183230 00183230 0101704b 00183230
tn3servr!TNTContinueDataFromNetwork
0ca5fd7c 0101704b 00183230 0ca5ff5c 0ca5fe3c 00183230
tn3servr!TNTContinueDataFromNetwork
0ca5fd94 01018580 00183230 010152b2 00183230 00000011
tn3servr!TNTContinueDataFromNetwork
0ca5fd9c 010152b2 00183230 00000011 0ca5fe3c 001837cc
tn3servr!TNTDataFromNetwork
0ca5fe14 77f4f7c2 00000000 00000011 001837cc 7ffdf000 tn3servr!TCPRecv
0ca5fe28 77fb03bb 01015100 001837cc 00000000 00010017
kernel32!<nosymbols>
0ca5ff5c 0100c876 00000003 0018d0b8 00000000 006ddcce ntdll!<nosymbols>
Additional query words:
Keywords : kbnetwork snatn3270 kbfix3.00.sp2
Version : WINDOWS:3.0 SP1
Platform : WINDOWS
Issue type : kbbug