Microsoft KB Archive/157175

= XCON: MTA Service Terminates Unexpectedly =

Article ID: 157175

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition

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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

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