Snaservr.exe Application Exception in SAPUGETI Function

The information in this article applies to:

• Microsoft SNA Server version 2.0, 2.1, 2.11, and 2.11 SP1

SYMPTOMS

You may see an application exception with SNA Server after an update to 3270 (or LUA) LUs on an active server. This application exception occurs when one or more of the updates cannot be immediately enacted (the SNA Server will appear "out-of-date" in the SNA Server Administrator program) and you then attempt to activate/deactivate a connection on the computer running SNA Server.

When this problem occurs, SNA Server generates a Dr. Watson error. The Drwtsn32.log file indicates that an application exception has occurred in Snaservr.exe, in the sapugeti function. In addition, SNA Server may log an Event 624 in the Windows NT Application Event log when the Snaservr.exe application exception occurs.

RESOLUTION

A fix is available to correct this problem.

STATUS

Microsoft has confirmed this to be a problem in SNA Server versions 2.0, 2.1, 2.11, and 2.11 SP1. This problem was corrected in the latest Microsoft SNA Server 2.11 U.S. Service Pack. For information on obtaining the 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

Event 624 in the Windows NT Application Event log has a description similar to the following:

   Creating dump file C:\SNA\traces\snadump.log for SNASERVR.EXE

   EXPLANATION
   A process (SNASERVR.EXE) ended abnormally due to a protection
   violation or similar condition and a dump file SNADUMP.LOG has been
   created that contains information about the state of the process at
   the time of the exception. Register information is contained in your
   Windows NT root directory in the file DRWTSN32.LOG.

   Application exception occurred:
        App: snaservr.exe (pid=221)
        When: 12/12/1996 @ 14:23:51.8
        Exception number: c0000005 (access violation)

   function: sapugeti
     003ff6f5 99               cdq
     003ff6f6 f7fe             idiv    esi
     003ff6f8 0fbfc1           movsx   eax,cx
     003ff6fb 6642             inc     dx
     003ff6fd 8d1c40           lea     ebx,[eax+eax*2]

     003ff700 0fbfc2           movsx   eax,dx
     003ff703 8d0cdd00000000   lea     ecx,[00000000+ebx*8]

     003ff70a 0305f8634300     add     eax,[sct (004363f8)]

     003ff710 03c1             add     eax,ecx
     003ff712 663bd6           cmp     dx,si
 FAULT ->003ff715 8a58eb       mov     bl,[eax-0x15]        ds:0135778d=??
     003ff718 885c240f         mov     [esp+0xf],bl         ss:00ede79f=??
     003ff71c 750b             jnz     sapugeti+0x59 (003ff729)
     003ff71e a1f8634300       mov     eax,[sct (004363f8)]

     003ff723 8a440804         mov     al,[eax+ecx+0x4]     ds:00bf777b=??
     003ff727 eb03             jmp     sapugeti+0x5c (003ff72c)
     003ff729 8a40ec           mov     al,[eax-0x14]        ds:0135778d=??
     003ff72c 8844240e         mov     [esp+0xe],al         ss:00ede79f=??
     003ff730 668b44240e       mov     ax,[esp+0xe]

     003ff735 5f               pop     edi
     003ff736 5e               pop     esi
     003ff737 5b               pop     ebx

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

  FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
  002cfe88 003eab9a 0006f098 00000027 00000001 00000001 snaservr!sapugeti
  002cfee0 003eed63 011bcb60 00000000 00000000 00069ff0 snaservr!s1pnsfol