Microsoft KB Archive/936456

= Stop error message when you run a filter driver that calls the &quot;CmRegisterCallback&quot; routine to register a &quot;RegistryCallback&quot; routine on a Windows XP SP2-based computer: &quot;STOP: 0x0000000A&quot; =

Article ID: 936456

Article Last Modified on 9/11/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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SYMPTOMS
On a Microsoft Windows XP Service Pack 2 (SP2)-based computer, you run a filter driver that calls the CmRegisterCallback routine to register a RegistryCallback routine. In this situation, Windows XP with SP2 may crash. When this problem occurs, you receive a stop error message that resembles the following:

STOP: 0x0000000A IRQL_NOT_LESS_OR_EQUAL



CAUSE
When the CmRegisterCallback routine registers a RegistryCallback routine, the CmRegisterCallback routine uses an address space from the allocated memory to initialize a fast mutex. However, the allocated memory for the fast mutex comes from paged pool memory. This behavior may cause the problem that is mentioned in the &quot;Symptoms&quot; section in specific conditions.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft Windows XP service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
To apply this hotfix, you must have Windows XP SP2 installed.

Restart requirement
You have to restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other previously released hotfixes.

File 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 item in Control Panel.

Windows XP with SP2, x86-based versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



Call stack information
When this problem occurs, the following call stack is generated: ee12a92c 804f9fdb badb0d00 e2bd5c54 80544698 nt!_KiTrap0E+0x238 ee12a9a8 806e498e e2bd5c4c 00000000 00000000 nt!KeSetEventBoostPriority+0x1f ee12a9b8 80569dad c9ce63e4 e207db60 01b253e0 hal!ExReleaseFastMutex+0x1a ee12a9e0 8062d97e 0000000d ee12ab70 e29fe830 nt!CmpCallCallBacks+0x71 ee12abb0 805bd8e5 01b253e0 00000000 821bba50 nt!CmpParseKey+0x6fa ee12ac28 805ba390 0000001c ee12ac68 00000040 nt!ObpLookupObjectName+0x119 ee12ac7c 80623593 00000000 822f9ae8 00000001 nt!ObOpenObjectByName+0xea ee12ad50 8054060c 00cffaa8 00020019 00cff690 nt!NtOpenKey+0x1af ee12ad50 7c90eb94 00cffaa8 00020019 00cff690 nt!KiFastCallEntry+0xfc For more information about the CmRegisterCallback routine, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa906439.aspx

For more information about the RegistryCallback routine, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/ms795487.aspx

For more information about Filtering Registry Calls, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa906577.aspx

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbfix kbexpertiseadvanced kbpubtypekc kbqfe kbhotfixserver KB936456

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