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Q195399: SNA Print Service Access Violation in S3pcsctl()

Article: Q195399
Product(s): Microsoft SNA Server
Version(s): 3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0,4.0 SP1
Operating System(s): 
Keyword(s): 
Last Modified: 25-OCT-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0, 4.0 SP1 
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SYMPTOMS
========

The SNA Print service (Snaprint.exe) may fail unexpectedly with an access
violation, causing all print sessions to end abnormally. When this specific
problem occurs, SNA Server will log the following event, along with an
indication of a failure in routine "s3pcsctl":

  Source: SNA Server
  Event: 624
  Creating dump file SNADUMP.LOG for snaprint.exe

If Drwtsn32.exe is the default debugger, the Drwtsn32.log file will indicate an
access violation fault in routine "s3pcsctl()". The log entry will appear as
follows:

  Application exception occurred:

  App: exe\snaprint.dbg (<pid>) <date, time omitted > Exception
  number: c0000005 (access violation)

  [...]

  State Dump for Thread Id 0x40

  eax=02020380 ebx=000af710 ecx=00000018 edx=6020ecdc esi=000af710
  edi=40404040
  eip=60d838ab esp=0c20ff68 ebp=00000008 iopl=0
  nv up ei pl nz na pe nc
  cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000 efl=00000202

  function: s3pcsctl

  60d8388a 55 push ebp 60d8388b 57 push edi 60d8388c 68b811da60 push 0x60da11b8
  60d83891 6a00 push 0x0 60d83893 e8b8dfffff call PreAsyncTrace (60d81850)
  60d83898 83c414 add esp,0x14 60d8389b 8b150011d860 mov
  edx,[_imp____dwEnabledTraces

  (60d8110

  60d838a1 8d4c6d00 lea ecx,[ebp+ebp*2] 60d838a5 8d044f lea eax,[edi+ecx*2]
  60d838a8 c1e003 shl eax,0x3

  FAULT ->60d838ab 8b988411d860     mov     ebx,[eax+0x60d81184]

  *----> Stack Back Trace <----*

  FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
  00000008 00000000 00000000 00000000 00000000 00000000 ppd3270!s3pcsctl

CAUSE
=====

The print server is mishandling long streams of NULL characters or spaces in the
print job when "No Line Formatting" is selected for the print session.


RESOLUTION
==========

SNA Server 3.0
--------------

To resolve this problem, obtain the latest service pack for SNA Server version
3.0. For additional information, please see the following article in the
Microsoft Knowledge Base:

  Q184307 How to Obtain the Latest SNA Server Version 3.0 Service Pack



SNA Server 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


WORKAROUND
==========

Try clearing the "No Line Formatting" check box within the SNA print session
3270 Configuration tab.

STATUS
======

Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0
Service Pack 1, 3.0 Service Pack 2, 3.0 Service Pack 3, 4.0, and 4.0 Service
Pack 1. This problem was first corrected in SNA Server 3.0 Service Pack 4.

MORE INFORMATION
================

For more information about the "No Line Formatting" option, see the following
Knowledge Base article:

  ARTICLE-ID: Q178514
  TITLE     : "No Line Formatting" Option isn't Explained in SNA Server                Help

Additional query words:

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ400 kbSNAServ300SP3 kbSNAServ300SP1 kbSNAServ400SP1 kbSNAServ300SP2
Version           : :3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0,4.0 SP1
Issue type        : kbbug
Solution Type     : kbfix

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