Article ID: 326809
Article Last Modified on 10/12/2005
APPLIES TO
- Microsoft SNA Server 4.0
- Microsoft SNA Server 4.0 Service Pack 1
- Microsoft SNA Server 4.0 Service Pack 2
- Microsoft SNA Server 4.0 Service Pack 3
- Microsoft SNA Server 4.0 Service Pack 4
- Microsoft Host Integration Server 2000 Service Pack 1
- Microsoft Host Integration Server 2000 Standard Edition
This article was previously published under Q326809
SYMPTOMS
The SNA Server service may unexpectedly stop responding, which causes all connected users to lose their existing host sessions. If the default debugger is Drwtsn32.exe, the debugger generates a Drwtsn32.log file similar to the files shown later in this section.
Additionally, the SNA Server service logs a message similar to the following in the Windows NT Application Event Log:
Log File for s1pptspl
Application exception occurred:
App: exe\snaservr.dbg (pid=<process id>)
When: <date> @ <time>
Exception number: c0000005 (access violation)
[...]
State Dump for Thread Id 0x1a9
eax=000007d5 ebx=00c0ff22 ecx=00c0ff28 edx=000006b0 esi=00020000 edi=00c0ff2c
eip=0105647d esp=00c0feec ebp=00c0ff28 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: s1pptspl
0105645e 56 push esi
0105645f 57 push edi
01056460 8b7c2414 mov edi,[esp+0x14] ss:0208e8f3=????????
01056464 66c745000000 mov word ptr [ebp],0x0 ss:0208e92f=????
0105646a c644241800 mov byte ptr [esp+0x18],0x0 ss:0208e8f3=??
0105646f 8b17 mov edx,[edi] ds:00c0ff2c=000006b0
01056471 66c7030000 mov word ptr [ebx],0x0 ds:00c0ff22=0001
01056476 8917 mov [edi],edx ds:00c0ff2c=000006b0
01056478 66ff03 inc word ptr [ebx] ds:00c0ff22=0001
0105647b 8b17 mov edx,[edi] ds:00c0ff2c=000006b0
FAULT ->0105647d 668b4a06 mov cx,[edx+0x6] ds:0147f0b7=????
01056481 668b7204 mov si,[edx+0x4] ds:0147f0b7=????
01056485 663bce cmp cx,si
01056488 7c07 jl s1pptspl+0x41 (01056491)
0105648a 2bce sub ecx,esi
0105648c 41 inc ecx
0105648d 66014d00 add [ebp],cx ss:0208e92f=????
01056491 8b12 mov edx,[edx] ds:000006b0=????????
01056493 85d2 test edx,edx
01056495 7406 jz s1pptspl+0x4d (0105649d)
01056497 66394500 cmp [ebp],ax ss:0208e92f=????
0105649b 7cd9 jl s1pptspl+0x26 (01056476)
*----> Stack Back Trace <----*
FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
00c0fef8 01056275 00c0ff2c 00c0ff00 00c0ff22 000007d5 snaservr!s1pptspl (FPO: [EBP 0x00000000] [4,0,4])
Log File for sbpbputt
Application exception occurred:
App: exe\snaservr.dbg (pid=<process id>)
When: <date> @ <time>
Exception number: c0000005 (access violation)
[...]
State Dump for Thread Id 0x1d0
eax=01194cd4 ebx=00000011 ecx=0051ff60 edx=0051ff50 esi=00000000 edi=0d4f14e8
eip=0100377b esp=0051ff28 ebp=01194ce6 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: sbpbputt
01003764 8b02 mov eax,[edx] ds:0051ff50=01194cd4
01003766 3900 cmp [eax],eax ds:01194cd4=01194cd4
01003768 7528 jnz s1pcprlu+0x562 (0100c292)
0100376a 8b4c2404 mov ecx,[esp+0x4] ss:00d3d4fb=0000004a
0100376e 56 push esi
0100376f 833900 cmp dword ptr [ecx],0x0 ds:0051ff60=00000001
01003772 7504 jnz s1pcprlu+0x348 (0100c078)
01003774 8901 mov [ecx],eax ds:0051ff60=00000001
01003776 eb05 jmp s1pcprlu+0x54d (0100c27d)
01003778 8b7104 mov esi,[ecx+0x4] ds:00d3d532=00000000
FAULT ->0100377b 8906 mov [esi],eax ds:00000000=????????
0100377d 8b02 mov eax,[edx] ds:0051ff50=01194cd4
0100377f 5e pop esi
01003780 894104 mov [ecx+0x4],eax ds:00d3d532=00000000
01003783 c70000000000 mov dword ptr [eax],0x0 ds:01194cd4=01194cd4
01003789 c70200000000 mov dword ptr [edx],0x0 ds:0051ff50=01194cd4
0100378f c20800 ret 0x8
01003792 6a00 push 0x0
01003794 6a00 push 0x0
01003796 6a10 push 0x10
01003798 68c10b0000 push 0xbc1
0100379d e8ae1e0000 call sbpgerr (01005650)
*----> Stack Back Trace <----*
FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
01194CE6 002C0000 580A0601 00000001 18110019 530E1200 snaservr!sbpbputt
00010501 00003600 52005000 43004F00 53004500 4F005300 <nosymbols>
CAUSE
If a link service sends an outage message to the SNA Server service with invalid maintenance statistics, it is possible for the SNA Server service to corrupt an internal memory control block, resulting in the access violations listed earlier.
RESOLUTION
SNA Server 4.0 SP4
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft SNA Server version 4.0 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual 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 hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
--------------------------------------------------------------
21-Oct-2002 13:25 4.0.0.606 468,864 Snaservr.exe
21-Oct-2002 13:25 4.0.0.606 935,344 Trcservr.exe
NOTE: Because of file dependencies, the most recent fix that contains the preceding files may also contain additional files.
Host Integration Server 2000
Service pack information
To resolve this problem, obtain the latest service pack for Microsoft Host Integration Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
328152 How to obtain the latest service pack for Host Integration Server 2000
Hotfix information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
--------------------------------------------------------------
21-Oct-2002 13:28 5.0.0.900 471,312 Snaservr.exe
21-Oct-2002 13:28 5.0.0.900 1,024,272 Trcservr.exe
NOTE: Because of file dependencies, the most recent fix that contains the preceding files may also contain additional files.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This problem was corrected in Microsoft Host Integration Server 2000 Service Pack 2.
MORE INFORMATION
For additional information about configuring Drwtsn32.exe as the default debugger, click the article number below to view the article in the Microsoft Knowledge Base:
188296 How to Disable Dr. Watson for Windows NT
For information about WinDBG, symbols, and other Microsoft debugging tools, visit the following Microsoft Web page:
Microsoft Debugging Tools
http://www.microsoft.com/whdc/devtools/ddk/default.mspx
Additional query words: HIS HIS2k HIS 2000
Keywords: kbbug kbfix kbqfe kbhotfixserver KB326809
