Article: Q308998
Product(s): Microsoft SNA Server
Version(s): 4.0
Operating System(s):
Keyword(s): kbDSupport sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbsna400sp4
Last Modified: 08-MAY-2002
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The information in this article applies to:
- Microsoft SNA Server, version 4.0
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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 the Request
Definite Response option is enabled for 3270 print sessions. When this problem
occurs, SNA Server may log the following event:
Event ID: 624
Source: SNA Server
Description: Creating dump file SNADUMP.LOG for snaprint.exe
If Drwtsn32.exe is configured as the default debugger on the system, the
Drwtsn32.log file will indicate an access violation fault in function
MonitorThread. The log entry will appear similar to the following:
Application exception occurred:
App: exe\snaprint.dbg (pid=546)
When: 9/18/2001 @ 8:44:29.876
Exception number: c0000005 (access violation)
[...]
State Dump for Thread Id 0x5f7
eax=00000001 ebx=0000000a ecx=00000000 edx=6020fcfc esi=00000000 edi=00000000
eip=61c81e51 esp=0faefb04 ebp=602012b0 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: MonitorThread
61c81e31 8d542418 lea edx,[esp+0x18] ss:108ee50b=????????
61c81e35 51 push ecx
61c81e36 8b743818 mov esi,[eax+edi+0x18] ds:00dfea07=????????
61c81e3a 8b443814 mov eax,[eax+edi+0x14] ds:00dfea07=????????
61c81e3e 52 push edx
61c81e3f 50 push eax
61c81e40 e83b070000 call isMyJob_i (61c82580)
61c81e45 85c0 test eax,eax
61c81e47 0f8447030000 je MonitorThread+0x994 (61c82194)
61c81e4d 8b4c2414 mov ecx,[esp+0x14] ss:108ee50b=????????
FAULT ->61c81e51 f681dc02000002 test byte ptr [ecx+0x2dc],0x2 ds:000002dc=??
61c81e58 0f8436030000 je MonitorThread+0x994 (61c82194)
61c81e5e 8bc6 mov eax,esi
61c81e60 c644245400 mov byte ptr [esp+0x54],0x0 ss:108ee50b=??
61c81e65 83e001 and eax,0x1
61c81e68 89442450 mov [esp+0x50],eax ss:108ee50b=????????
61c81e6c 741c jz MonitorThread+0x68a (61c81e8a)
61c81e6e 8d7c2454 lea edi,[esp+0x54] ss:108ee50b=????????
61c81e72 83c9ff or ecx,0xff
61c81e75 33c0 xor eax,eax
61c81e77 8b159464c961 ds:61c96494=53554150
mov edx,[_NULL_IMPORT_DESCRIPTOR+0x1964 (61c96494)]
61c81e7d f2ae repne scasb es:00000000=??
*----> Stack Back Trace <----*
FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
0faeffb8 77f04ede 00000370 00000211 0cadfbd0 00000370 winvprt!MonitorThread (FPO: [EBP 0x00000211] [1,298,4])
00000211 00000000 00000000 00000000 00000000 00000000 kernel32!lstrcmpiW
NOTE: This problem does not occur in Host Integration Server 2000.
CAUSE
=====
A small timing window exists in the print server when the Request Definite
Response option is enabled for 3270 print sessions that results in the deletion
of an internal print job control block. This in turn results in an access
violation that terminates the print server service.
Due to the nature of the small timing window, the access violation is more likely
to occur on multiprocessor systems.
RESOLUTION
==========
A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem. This fix may receive additional
testing at a later time, to further ensure product quality. Therefore, if you
are not severely affected by this problem, Microsoft recommends that you wait
for the next Microsoft SNA Server version 4.0 service pack that contains this
fix.
To resolve this problem immediately, contact Microsoft Product Support Services
to obtain the fix. For a complete list of Microsoft Product Support Services
phone numbers and information about support costs, please go to the following
address on the World Wide Web:
http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS
NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.
The English version of this fix should have the following file attributes or
later:
+----------------------------------+
| File name | Date | Time |
+----------------------------------+
| Winvprt.dll | 11/02/2001 | 07:45 |
+----------------------------------+
NOTE: Because of file dependencies, the most recent fix that contains the above
files may also contain additional files.
STATUS
======
Microsoft has confirmed this to be a problem in Microsoft SNA Server version
4.0.
MORE INFORMATION
================
The Request Definite Response option is selected in SNA Manager on the
Transparency/GDI tab of the 3270 Print Session's Properties dialog box. This is
an advanced option that should be enabled for applications that require a high
level of assurance that the print job completed. This feature allows the print
server to send a message to the host system to indicate that the print job
completed.
Additional query words:
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Keywords : kbDSupport sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbsna400sp4
Technology : kbAudDeveloper kbSNAServSearch kbSNAServ400
Version : :4.0
Issue type : kbbug
Solution Type : kbfix
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