DOCUMENT:Q315839 08-MAY-2002 [sna] TITLE :SNABASE.exe Access Violation on HIS 2000 End User Client PRODUCT :Microsoft SNA Server PROD/VER:: OPER/SYS: KEYWORDS:kbDSupport kbhis2000 kbhis2000bug ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Host Integration Server 2000 ------------------------------------------------------------------------------- SYMPTOMS ======== The Host Integration Server (HIS) 2000 End User Client experiences an access violation in SNABASE.exe. If DRWTSN32.exe is configured as the default debugger on the system that is running the HIS 2000 End User Client, information similar to the following will appear in the Drwtsn32.log file after the access violation occurs: Application exception occurred: App: snabase.exe (pid=2996) When: 12/12/2001 @ 16:25:25.087 Exception number: c0000005 (access violation) [data omitted] function: LsaApCallPackage 782d7e49 5e pop esi 782d7e4a 5b pop ebx 782d7e4b c20800 ret 0x8 782d7e4e 8b36 mov esi,[esi] ds:0008b7d0=00000000 782d7e50 ebcf jmp LsaApCallPackagePassthrough+0xd7b (782dd221) 782d7e52 53 push ebx 782d7e53 ff1558102d78 ds:782d1058=77f95402 call dword ptr [Ordinal19+0x1058 (782d1058)] 782d7e59 8b4e04 mov ecx,[esi+0x4] ds:008a8da2=???????? 782d7e5c 8b06 mov eax,[esi] ds:0008b7d0=00000000 782d7e5e 8901 mov [ecx],eax ds:782eac48=00000000 FAULT ->782d7e60 894804 mov [eax+0x4],ecx ds:0081d5d2=???????? 782d7e63 ff0cbdc0ac2e78 dec dword ptr [782eacc0+edi*4] ds:0000000f=???????? 782d7e6a 8d04bdc0ac2e78 lea eax,[782eacc0+edi*4] ds:0000000f=???????? 782d7e71 ebcc jmp LsaApCallPackagePassthrough+0xd99 (782dd23f) 782d7e73 53 push ebx 782d7e74 ff155c102d78 ds:782d105c=77f880d2 call dword ptr [Ordinal19+0x105c (782d105c)] 782d7e7a 33c0 xor eax,eax 782d7e7c ebca jmp LsaApCallPackagePassthrough+0x10a2 (782dd548) 782d7e7e 56 push esi 782d7e7f 8b742408 mov esi,[esp+0x8] ss:0153d44b=???????? 782d7e83 57 push edi 782d7e84 33ff xor edi,edi *----> Stack Back Trace <----* FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name 00D1FED0 64505DE8 000865EC 00084D60 602012D0 00D1FF4C msv1_0!LsaApCallPackage 77BEC1D0 77BE84EF 77BE8655 77BE80E2 77BE3C18 00000000 snacip! 00000001 00000000 00000000 00000000 00000000 00000000 secur32!EnumerateSecurityPackagesA CAUSE ===== A small timing window exists in the HIS 2000 End User Client transport dynamic link libraries (DLLs) that may allow two threads to close and reset the security context handles simultaneously when SNABASE.exe closes its sponsor connection. 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 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 | +----------------------------------+ | Snacip.dll | 07-Jan-2002 | 10:22 | +----------------------------------+ | Snacnw.dll | 07-Jan-2002 | 10:22 | +----------------------------------+ | Snaclm.dll | 07-Jan-2002 | 10:22 | +----------------------------------+ | Snacbv.dll | 07-Jan-2002 | 10:22 | +----------------------------------+ 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 Host Integration Server 2000. MORE INFORMATION ================ This problem can only occur if the HIS 2000 End User Client is configured to "Locate servers using a Subdomain". The problem does not occur if the HIS 2000 End User Client is configured to "Locate servers using Active Directory". Additional query words: ====================================================================== Keywords : kbDSupport kbhis2000 kbhis2000bug Technology : kbAudDeveloper kbHostIntegServ2000 Version : : Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 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