Q254015: SNA Server Access Violation During Single Sign-On Processing
Article: Q254015
Product(s): Microsoft SNA Server
Version(s): WINDOWS:4.0,4.0 SP1,4.0 SP2,4.0 SP3
Operating System(s):
Keyword(s): sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbSNA400sp4fix kbSNA400PreSP4fix
Last Modified: 13-JUN-2001
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The information in this article applies to:
- Microsoft SNA Server, versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3
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SYMPTOMS
========
The SNA Server service (Snaservr.exe) may stop unexpectedly with an Access
Violation error message in the s1plssof function or s1plsnd function while
handling a single sign-on request following a restart of the service. When this
occurs, the following Windows NT application event is logged:
Event ID: 624
Source: SNA Server
If the Drwtsn32.exe file is configured as the default Windows NT debugger, a
Drwtsn32.log entry is also created. The following is an example of an entry that
may be created (note the function names):
Application exception occurred:
App: exe\snaservr.dbg (pid)
When: date time
Exception number: c0000005 (access violation)
function: s1plssof
0103a52d c744243003000000 mov dword ptr [esp+0x30],0x3 ss:023de837=????????
0103a535 8b1485945f1801 ds:002c64b0=00000000
mov edx,[sbbufrsv+0x54 (01185f94)+eax*4]
0103a53c 0fbfc1 movsx eax,cx
0103a53f 8bc8 mov ecx,eax
0103a541 89542418 mov [esp+0x18],edx ss:023de837=????????
0103a545 0fbf942414010000 movsx edx,word ptr [esp+0x114] ss:00bcff44=0006
0103a54d c1e103 shl ecx,0x3
0103a550 2bc8 sub ecx,eax
0103a552 8d044a lea eax,[edx+ecx*2] ds:0002c648=????????
0103a555 c1e003 shl eax,0x3
FAULT ->0103a558 668b88b8d30601 mov cx,[eax+0x106d3b8] ds:01333868=????
0103a55f 8d80bad30601 lea eax,[eax+0x106d3ba] ds:0133386a=????????
-or-
Application exception occurred:
App: exe\snaservr.dbg (pid)
When: date time
Exception number: c0000005 (access violation)
function: s1plsnd
010398cb e8d0110000 call s1plssoq (0103aaa0)
010398d0 0fbf05425a1801 ds:01185a42=028c
movsx eax,word ptr [sncurrnt (01185a42)]
010398d7 8d0c40 lea ecx,[eax+eax*2] ds:01317748=01317748
010398da 8b048d945f1801 ds:000007a4=????????
mov eax,[sbbufrsv+0x54 (01185f94)+ecx*4]
010398e1 89442414 mov [esp+0x14],eax ss:023de957=????????
010398e5 85c0 test eax,eax
010398e7 0f8437040000 je s1plsnd+0x484 (01039d24)
010398ed 668b6810 mov bp,[eax+0x10] ds:02b2614f=????
010398f1 0fbffd movsx edi,bp
010398f4 8b14bd9ce40e01 ds:00000000=????????
mov edx,[s1rcb+0xe25c (010ee49c)+edi*4]
FAULT ->010398fb 668b0a mov cx,[edx] ds:00000000=????
010398fe 6689480c mov [eax+0xc],cx ds:02b2614f=????
CAUSE
=====
The SNA Server service is attempting to process an internal single sign-on
message that contains an incorrect destination index field, which leads to an
Access Violation error message.
RESOLUTION
==========
To resolve this problem, obtain the latest service pack for SNA Server 4.0. For
additional information, please see the following article in the Microsoft
Knowledge Base:
Q215838 How to Obtain the Latest SNA Server Version 4.0 Service Pack
STATUS
======
Microsoft has confirmed this to be a problem in Microsoft SNA Server 4.0, 4.0
SP1, 4.0 SP2, and 4.0 SP3.
This problem was first corrected in SNA Server 4.0 Service Pack 4.
Additional query words:
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Keywords : sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbSNA400sp4fix kbSNA400PreSP4fix
Technology : kbAudDeveloper kbSNAServSearch kbSNAServ400 kbSNAServ400SP1 kbSNAServ400SP2 kbSNAServ400SP3
Version : WINDOWS:4.0,4.0 SP1,4.0 SP2,4.0 SP3
Issue type : kbbug
Solution Type : kbfix
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