Article ID: 188989
Article Last Modified on 10/28/2006
APPLIES TO
- Microsoft Exchange Server 5.5 Standard Edition
This article was previously published under Q188989
SYMPTOMS
During normal operations, the information store may stop unexpectedly, and an Access Violation error message appears on the server console. If Dr. Watson is active as the default debugger, a Dr. Watson log and a User.dmp file (if configured to create a User.dmp file) may be produced.
CAUSE
The information store stops because an attempt is made to de-reference a NULL pointer during a memory copy operation.
RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For more information, please see the following article in the Microsoft Knowledge Base:
191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 2.
MORE INFORMATION
The Drwtsn32.log file that is produced will look similar to the following. Note that the ESI register is zero:
Microsoft (R) Windows NT (TM) Version 4.00 DrWtsn32
Copyright (C) 1985-1995 Microsoft Corp. All rights reserved.
Application exception occurred:
App: STORE.DBG (pid=76)
When: 2/19/1998 @ 9:39:5.106
Exception number: c0000005 (access violation)
State Dump for Thread Id 0x1aa
EAX=055252a8 EBX=9f3f0002 ECX=27cfc000 EDX=9f3f0000 ESI=00000000
EDI=188ca081
EIP=00437b76 ESP=148df964 EBP=188ca070 EFL=00000216
CS=001b DS=0023 ES=0023 SS=0023 FS=0038 GS=0000
function:STORE!@EcFormatMVBinary
.....
00437B66 761F jbe EcFormatMVBinary+66h
0437B68 8B12 mov edx,dword ptr [edx]
00437B6A 8B7004 mov esi,dword ptr [ibMost]
00437B6D 8D7C1502 lea edi,dword ptr [ebp+edx+2]
00437B71 8BD1 mov edx,ecx
00437B73 C1E902 shr ecx,2
FAULT => 00437B76 F3A5 rep movs dword ptr es:[edi],dword
ptr [esi]
.....
*----> Stack Back Trace <----*
FramePtr RetAddr Param1 Param2 Param3 Function Name
148df974 00410c6b 00007fff 00000001 055252a8
STORE!EcFormatMVBinary+0x5d
148df99c 0040f898 00007fff 055252a0 148df9c8
STORE!EcFormatValue+0x1b1
148df9cc 004268d6 00007fff 00000001 00000000 STORE!EcFormatRow+0xcc
148dfa20 0040c558 00000001 0000355a 19ac8ee8
STORE!EcGetPropsSpecific+0x17c
00000006 00000000 00000000 00000000 00000000 STORE!EcRpc+0x471
Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB188989
