DOCUMENT:Q286168 08-MAY-2002 [sna] TITLE :Application Exception in Snalink!UpdateDLSData PRODUCT :Microsoft SNA Server PROD/VER::3.0 (all SP),4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4 OPER/SYS: KEYWORDS:kbDSupport kbsna300sp1 kbsna300sp2 kbsna300sp3 kbsna300sp4 sna4 kbsna400sp1 kbsna400sp2 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, versions 3.0 SP1, 3.0 SP2, 3.0 SP3, 3.0 SP4, 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4 - Microsoft Host Integration Server 2000 ------------------------------------------------------------------------------- SYMPTOMS ======== SNA Server or Host Integration Server 2000 systems being used to distribute DLC 802.2 link services for use by branch SNA Servers and/or Host Integration 2000 servers in a Distributed Link Service (DLS) environment may experience an application exception in Snalink!UpdateDLSData. NOTE: The problem only occurs when a DLS connection terminates unexpectedly. Therefore, the Application Event log may contain events normally associated with connection outages prior to the application exception. Common connection outage events logged by SNA Server/HIS 2000 include the following events: 23, 227, 226. CAUSE ===== The application exception occurs when a NULL message pointer is passed into the UpdateDLSData function. RESOLUTION ========== SNA Server 4.0 -------------- 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 | +-----------------------------------+ | Snadlc.dll | 01/26/2001 | 09:13AM | +-----------------------------------+ NOTE: Because of file dependencies, the most recent fix that contains the above files may also contain additional files. Host Integration Server 2000 ---------------------------- 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 Host Integration Server 2000 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 | +-----------------------------------+ | Snadlc.dll | 01/26/2001 | 09:13AM | +-----------------------------------+ 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 versions 3.0 (all Service Packs [SPs]), 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, and Host Integration Server 2000. MORE INFORMATION ================ If DRWTSN32.exe is configured as the default debugger, information similar to the following is added to the DRWTSN32.LOG when this application exception occurs: Application exception occurred: App: exe\snalink.dbg (pid=89) When: 12/5/2000 @ 19:8:42.58 Exception number: c0000005 (access violation) [data omitted...] 6338917d 7fec jg UpdateDLSData+0x8b (6338916b) 6338917f a17c1a3963 mov eax,[DlsData+0x344 (63391a7c)] ds:63391a7c=63391a80 63389184 6840173963 push 0x63391740 63389189 50 push eax 6338918a 6849173963 push 0x63391749 6338918f ffd3 call ebx 63389191 83c40c add esp,0xc 63389194 c7053817396300000000 ds:63391738=00000000 mov dword ptr [DlsData (63391738)],0x0 6338919e 8bb42420010000 mov esi,[esp+0x120] ss:00baff0c=63387d83 633891a5 6849183963 push 0x63391849 FAULT ->633891aa 660fb64e0a movzx cx,byte ptr [esi+0xa] ds:0161ea08=?? 633891af 51 push ecx 633891b0 e84f350000 call GetClientWorkstationName (6338c704) 633891b5 85c0 test eax,eax 633891b7 0f84cd010000 je UpdateDLSData+0x2aa (6338938a) 633891bd 8d542414 lea edx,[esp+0x14] ss:021ce7f3=???????? 633891c1 52 push edx 633891c2 6a03 push 0x3 633891c4 6a00 push 0x0 633891c6 6849173963 push 0x63391749 633891cb 6802000080 push 0x80000002 633891d0 ff1500103863 ds:63381000=77dd992e call dword ptr [_imp__RegOpenKeyExA (63381000)] In addition, an event similar to the following will be logged in the Application Event Log: Event ID: 624 Source: SNA Server Description: Creating dump file D:\sna\traces\snadump.log for snalink.exe Additional query words: ====================================================================== Keywords : kbDSupport kbsna300sp1 kbsna300sp2 kbsna300sp3 kbsna300sp4 sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbhis2000 kbsna400sp4 Technology : kbAudDeveloper kbSNAServSearch kbHostIntegServ2000 kbSNAServ400 kbSNAServ300SP3 kbSNAServ300SP1 kbSNAServ400SP1 kbSNAServ400SP2 kbSNAServ400SP3 kbSNAServ400SP4 kbSNAServ300SP2 kbSNAServ300SP4 Version : :3.0 (all SP),4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. 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