Article ID: 157175
Article Last Modified on 10/28/2006
APPLIES TO
- Microsoft Exchange Server 4.0 Standard Edition
This article was previously published under Q157175
SYMPTOMS
The Exchange MTA Service may terminate unexpectedly, causing message delivery to fail.
The Windows NT Application Event Log may show an entry similar to the following:
Event ID: 9405
Source: MSExchangeMTA
Category: Field Engineering
Type: Error
Description:
An unexpected error has occurred which may cause the MTA to terminate. Error: Exception c0000005 occurred at Address 207a972. [BASE SUBMIT 17] (16).
The DrWtsn32.log may look something like this:
Microsoft (R) Windows NT (TM) Version 3.51 DrWtsn32 Copyright (C) 1985-1995 Microsoft Corp. All rights reserved.
Application exception occurred:
App: emsmta.DBG (pid=44)
When: 4/11/1996 @ 7:30:30.452
Exception number: c0000005 (access violation)
CAUSE
A NULL pointer was passed to a function that did not check for it. When this pointer was de-referenced, and access violation occurred.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 4.0. This problem was corrected in the latest Microsoft Exchange Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base:
SERVPACK
MORE INFORMATION
The Thread where the access violation occurred may look similar to this:
State Dump for Thread Id 0x61
EAX=00000000 EBX=00000000 ECX=00000561 EDX=0542efe4 ESI=02505294
EDI=025052b6
EIP=0207a972 ESP=0542ef3c EBP=0542ef54 EFL=00000246
CS=001b DS=0023 ES=0023 SS=0023 FS=0038 GS=0000
function: EMSMTA!odpbcach
..... 0x0207a964 55 push ebp
..... 0x0207a965 8bec mov ebp,esp
..... 0x0207a967 83ec0c sub esp,0c
..... 0x0207a96a 53 push ebx
..... 0x0207a96b 8b4508 mov eax,dword ptr [ebp+08]
..... 0x0207a96e 56 push esi
..... 0x0207a96f 33db xor ebx,ebx
..... 0x0207a971 57 push edi
FAULT-->. 0x0207a972 8b7008 mov esi,dword ptr [eax+08]
..... 0x0207a975 885dff mov byte ptr [lreturn],bl
..... 0x0207a978 e833c4f9ff call sbpiwtid (02016db0)
..... 0x0207a97d 8b4d08 mov ecx,dword ptr [xiarbptr]
..... 0x0207a980 668b4122 mov ax,word ptr [ecx+22]
..... 0x0207a984 50 push eax
..... 0x0207a985 e8f3bcf9ff call sbpiwacs (0201667d)
..... 0x0207a98a 668b451c mov ax,word ptr [xioper]
*----> Stack Back Trace <----*
FramePtr RetAddr Param1 Param2 Param3 Function Name
0542ef54 020813a8 00000000 0542efe4 0542efe4 EMSMTA!odpbcach+0xe
0542efec 0205fea1 025052b6 0083b7bc 0228c400 EMSMTA!odpdomva+0x13e
0542f028 0206a667 00000011 37fa0af4 00000017 EMSMTA!otpsrtop+0x1b7
0542f164 02069c00 00000011 268a02f4 0205fcea EMSMTA!ospadrec+0x962
0542f1c4 0205ffa6 00000011 268a02f4 00000017 EMSMTA!ospadeco+0x466
0542f220 0206a667 00000011 268a02f4 00000017 EMSMTA!otpsrtop+0x2bc
0542f35c 02069c00 00000011 32fc01fc 0205fcea EMSMTA!ospadrec+0x962
0542f3bc 0205ffa6 00000011 32fc01fc 00000012 EMSMTA!ospadeco+0x466
0542f418 0206a667 00000011 32fc01fc 00000012 EMSMTA!otpsrtop+0x2bc
0542f554 02069c00 00000011 00dc02ad 0205fcea EMSMTA!ospadrec+0x962
0542f5b4 0205ffa6 00000011 00dc02ad 0000000a EMSMTA!ospadeco+0x466
0542f610 0206a667 00000011 00dc02ad 0000000a EMSMTA!otpsrtop+0x2bc
0542f74c 02069c00 00000011 00000e1d 0205fcea EMSMTA!ospadrec+0x962
0542f7ac 0205ffa6 00000011 00000e1d 00000008 EMSMTA!ospadeco+0x466
0542f808 0206a667 00000011 03e20574 00000008 EMSMTA!otpsrtop+0x2bc
0542f944 0206a89a 00000011 20000e48 0205fcea EMSMTA!ospadrec+0x962
0542fa90 0206a89a 00000011 066a019f 0205fcea EMSMTA!ospadrec+0xb95
0542fbdc 0206a89a 00000011 11720e6c 0205fcea EMSMTA!ospadrec+0xb95
0542fd28 02069c00 00000011 000000d0 0205fcea EMSMTA!ospadrec+0xb95
0542fd88 0205f53d 00000011 000000d0 00000001 EMSMTA!ospadeco+0x466
0542ff18 02060855 00000011 00000001 00000000 EMSMTA!otpsrort+0x1b8
0542ff2c 0205e367 42ffb811 02486a36 000002a8 EMSMTA!otpsubok+0x39
0542ff8c 02016755 02486a36 02486a36 00000011 EMSMTA!otpsmain+0x954
0542ffb8 77f26c2a 00000011 02486a36 02486a36 EMSMTA!sbpiwbep+0x5c
0542ffec 00000000 020166f9 00000011 00000000 0x77f26c2a
Additional query words: Access Violation GP Fault
Keywords: kbnetwork KB157175
