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XADM: Information Store Crash in UNK__Delete

This article was previously published under Q274281
This article has been archived. It is offered "as is" and will no longer be updated.
The Microsoft Exchange Server 5.5 and Exchange 2000 Server information store may stop responding unexpectedly (crash). If Dr. Watson is active as the default debugger, a Dr. Watson log and a User.dmp file (if Dr. Watson is configured to create a User.dmp file) may be generated.
This behavior can occur because an individual OMSG is being released by the information store while the structure is still in use.

Exchange Server 5.5

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Exchange 5.5 Service Pack 5 that contains this fix.

To resolve this problem immediately, download the fix by clicking the download link later in this article or 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, 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.

For additional information about how to download the fix for this problem, click the article number below to view the article in the Microsoft Knowledge Base:
291222 XGEN: Rollup of Selected Exchange 2000 Server Post-Release Fixes
The English version of this fix should have the following file attributes or later:

Component: Information Store

File nameVersion

Exchange 2000 Server

To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
The English version of this fix should have the following file attributes or later:

Component: Information Store

File nameVersion

Microsoft has confirmed that this is a problem in Microsoft Exchange 5.5 and 2000 Server.
The following is a stack trace for this access violation:
ChildEBP RetAddr  Args to Child67cdfa1c 62ff18ca 15a178b8 15a178c0 15a178c0 EXCHMEM!MpHeapValidateHeader+0x2b67cdfa34 62ff1896 00dbf650 15a178c0 15c5ec38 EXCHMEM!MpHeapFree+0x2867cdfa48 00411ce8 15a178c0 005dd3f0 15a178c0 EXCHMEM!ExchMHeapFree+0xd867cdfa50 005dd3f0 15a178c0 15d79ae8 0060c38a store!operator delete+0xe67cdfa5c 0060c38a 00000001 15c5ec38 15d79ae8 store!FXSTREAM__`scalar deleting destructor'+0x1567cdfa70 0060a115 00000000 15c5ec38 00609fd3 store!MSGFXSND__Release+0x5a67cdfa7c 00609fd3 16163c20 15c5ec38 00000005 store!FXSRCCTX__EcScrub+0x2467cdfa90 00609f3c 15c5ec38 00609f18 15c5ec38 store!FXSRCCTX__Release+0x4267cdfa98 00609f18 15c5ec38 00447b5a 00000001 store!FXSRCCTX__~FXSRCCTX+0xe67cdfaa0 00447b5a 00000001 00000000 004ec8b4 store!FXSRCCTX__`scalar deleting destructor'+0x867cdfaac 004ec8b4 ffffffff 00000000 16163c20 store!UNK__Delete+0x5d67cdfac4 00444d6e 16163c20 16163c20 00000000 store!UNKP__DeleteSubObjects+0x4967cdfadc 00444c73 16163c20 00447b5a 00000001 store!OMSG__~OMSG+0x31867cdfae4 00447b5a 00000001 140ac010 00447a17 store!OMSG__`vector deleting destructor'+0x867cdfaf0 00447a17 00007d2d 00000006 67cdfba4 store!UNK__Delete+0x5d67cdfb18 004b6560 67cdfb78 00000000 00007d2d store!EcReleaseOp+0x10867cdfb28 004b2d09 00007d2d 67cdfb78 66ae94f2 store!EcRelease+0x1b00000006 00000000 00000000 00000000 00000000 store!EcRpc+0x3740:100> reax=fabbaabb ebx=15d79ae8 ecx=15a178b8 edx=00000000 esi=15a178b8 edi=fabbaabbeip=62ff19bd esp=67cdfa20 ebp=00000001 iopl=0         nv up ei pl zr na po nccs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246EXCHMEM!MpHeapValidateHeader+2b:62ff19bd 8b00             mov     eax,[eax]         ds:0023:fabbaabb=????????0:100> dc 15a178c0-0x1015a178b0  00140077 00080000 15c70008 15d8abf0  w...............15a178c0  004792b0 0600f788 285d0003 00007dd3  ..G.......](.}..15a178d0  00000000 00000000 00000000 00000000  ................15a178e0  00000000 00000089 02000000 00000001  ................15a178f0  00000000 00000000 00000000 00000000  ................15a17900  a8840021 000003e8 00000000 00000000  !...............15a17910  00000100 00000000 00000002 00000002  ................15a17920  00000002 00000000 00000000 00000001  ................				

Article ID: 274281 - Last Review: 10/21/2013 01:45:04 - Revision: 3.3

Microsoft Exchange 2000 Server Standard Edition, Microsoft Exchange Server 5.5 Standard Edition

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