A computer that is running Windows XP or Windows Vista becomes unresponsive after the driver load and unload operation is repeated many times

A computer that is running Windows XP or Windows Vista becomes unresponsive after the driver load and unload operation is repeated many times
Article ID : 950162
Last Review : May 14, 2008
Revision : 1.0
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SYMPTOMS

When application repeats the driver load and unload operation many times on a computer that is running Windows XP or Windows Vista, the computer may become unresponsive.

If you use the Memory Pool Monitor (Poolmon.exe) utility to monitor the IoSe and Pp memory tags, the memory that these two tags consume increases as every successful driver load and unload operation occurs.

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CAUSE

This issue occurs because of a memory leak in the I/O manager and a memory leak in the PnP manager.

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RESOLUTION

Hotfix information

Windows XP

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that this article describes. Apply this hotfix only to systems that are experiencing this specific problem.

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 (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 (http://support.microsoft.com/contactus/?ws=support)
Prerequisites

To apply this hotfix, you must have Windows XP Sevice Pack 2 or any higher version of Windows XP Service Pack installed on the computer.

Restart requirement

You have to restart the computer after you apply this hotfix.

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Hotfix replacement information

This hotfix replaces hotfix 901122 and hotfix 935892.

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Registry information

To use this hotfix, you do not have to make any changes to the registry.

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 Service Pack 2 (SP2), x86-based versions

File name File version File size Date Time Platform SP requirement
Ntkrnlmp.exe 5.1.2600.3357 2,142,720 23-Apr-2008 10:03 x86 SP2
Ntkrnlpa.exe 5.1.2600.3357 2,062,976 23-Apr-2008 09:30 x86 SP2
Ntkrpamp.exe 5.1.2600.3357 2,020,864 23-Apr-2008 09:29 x86 SP2 Ntoskrnl.exe 5.1.2600.3357 2,185,984 23-Apr-2008 10:05 x86 SP2

Windows XP with Service Pack 3 (SP3), x86-based versions

File name File version File size Date Time Platform SP requirement
Ntkrnlmp.exe 5.1.2600.5586 2,145,280 23-Apr-2008 11:47 x86 SP3
Ntkrnlpa.exe 5.1.2600.5586 2,066,048 23-Apr-2008 08:44 x86 SP3
Ntkrpamp.exe 5.1.2600.5586 2,023,936 23-Apr-2008 11:14 x86 SP3
Ntoskrnl.exe 5.1.2600.5586 2,189,184 23-Apr-2008 11:49 x86 SP3

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Hotfix information for Windows Vista

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 Windows Vista 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 (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 (http://support.microsoft.com/contactus/?ws=support)

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Prerequisites

To apply this hotfix, you must have Windows XP Sevice Pack 2 or any higher version of Windows XP Service Pack installed on the computer.

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Restart requirement

You have to restart the computer after you apply this hotfix.

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Hotfix replacement information

This hotfix replaces hotfix 901122 and hotfix 935892.

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Registry information

To use this hotfix, you do not have to make any changes to the registry.

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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 Vista, x86-based versions
File name File version File size Date Time Platform
Package_1_for_kb950162~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,777 17-Mar-2008 17:50 Not Applicable
Package_2_for_kb950162~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,944 17-Mar-2008 17:50 Not Applicable
Package_3_for_kb950162~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,782 17-Mar-2008 17:50 Not Applicable
Package_4_for_kb950162~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,782 17-Mar-2008 17:50 Not Applicable
Package_5_for_kb950162~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,782 17-Mar-2008 17:50 Not Applicable
Package_6_for_kb950162~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,778 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,426 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,367 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_client~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,713 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,421 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_sc~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,423 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,425 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_server~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,431 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,422 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,430 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpe_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,420 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpe~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,424 17-Mar-2008 17:50 Not Applicable
Update.mum Not Applicable 3,571 17-Mar-2008 17:50 Not Applicable
X86_b2841d128109f9c36ad3ab4396a1b261_31bf3856ad364e35_6.0.6001.22137_none_409187180aed2bf6.manifest Not Applicable 697 17-Mar-2008 17:50 Not Applicable
X86_e614c84179b81c336ef4d39f4f7ee615_31bf3856ad364e35_6.0.6000.20793_none_3381c5d5f998944e.manifest Not Applicable 697 17-Mar-2008 17:50 Not Applicable
X86_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6000.20793_none_6a757157d06068bf.manifest Not Applicable 17,806 15-Mar-2008 03:58 Not Applicable
X86_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6001.22137_none_6ca090adcd52b766.manifest Not Applicable 17,806 15-Mar-2008 04:02 Not Applicable
Ntkrnlpa.exe 6.0.6000.20793 3,505,720 15-Mar-2008 03:37 Not Applicable
Ntoskrnl.exe 6.0.6000.20793 3,471,928 15-Mar-2008 03:37 Not Applicable
Ntkrnlpa.exe 6.0.6001.22137 3,600,952 15-Mar-2008 03:41 Not Applicable
Ntoskrnl.exe 6.0.6001.22137 3,548,728 15-Mar-2008 03:41 Not Applicable
Windows Vista, x64-based versions
File name File version File size Date Time Platform
Amd64_7f762a8fc733dda22962c5a09fc6e233_31bf3856ad364e35_6.0.6000.20793_none_2574194dd6e92517.manifest Not Applicable 701 17-Mar-2008 17:50 Not Applicable
Amd64_d4af2085ffb0889d625b352db1b830bb_31bf3856ad364e35_6.0.6001.22137_none_bb3cbe4e85d201ad.manifest Not Applicable 701 17-Mar-2008 17:50 Not Applicable
Amd64_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6000.20793_none_c6940cdb88bdd9f5.manifest Not Applicable 16,512 15-Mar-2008 04:12 Not Applicable
Amd64_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6001.22137_none_c8bf2c3185b0289c.manifest Not Applicable 16,512 15-Mar-2008 04:35 Not Applicable
Package_1_for_kb950162~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,787 17-Mar-2008 17:50 Not Applicable
Package_2_for_kb950162~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,956 17-Mar-2008 17:50 Not Applicable
Package_3_for_kb950162~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,792 17-Mar-2008 17:50 Not Applicable
Package_4_for_kb950162~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,792 17-Mar-2008 17:50 Not Applicable
Package_5_for_kb950162~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,792 17-Mar-2008 17:50 Not Applicable
Package_6_for_kb950162~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,788 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,434 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,375 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_client~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,723 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,429 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,431 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,433 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_server~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,439 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,430 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,438 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpe_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,428 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpe~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,432 17-Mar-2008 17:50 Not Applicable
Update.mum Not Applicable 3,597 17-Mar-2008 17:50 Not Applicable
Ntoskrnl.exe 6.0.6000.20793 4,429,880 15-Mar-2008 03:52 x64
Ntoskrnl.exe 6.0.6001.22137 4,694,072 15-Mar-2008 04:13 x64
Windows Vista, IA64-based versions
File name File version File size Date Time Platform
Ia64_8924c38a181e9c1abaa1327d13cee35e_31bf3856ad364e35_6.0.6001.22137_none_e29da3f49e96b211.manifest Not Applicable 699 17-Mar-2008 17:50 Not Applicable
Ia64_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6001.22137_none_6ca234a3cd50c062.manifest Not Applicable 16,819 15-Mar-2008 04:14 Not Applicable
Package_1_for_kb950162~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,782 17-Mar-2008 17:50 Not Applicable
Package_2_for_kb950162~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,787 17-Mar-2008 17:50 Not Applicable
Package_3_for_kb950162~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,787 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,425 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,426 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,429 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_server~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,434 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,426 17-Mar-2008 17:50 Not Applicable
Package_for_kb950162_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,433 17-Mar-2008 17:50 Not Applicable
Update.mum Not Applicable 2,423 17-Mar-2008 17:50 Not Applicable
Ntoskrnl.exe 6.0.6001.22137 9,501,240 15-Mar-2008 03:59 IA-64

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STATUS

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

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MORE INFORMATION

For more information about Memory Pool Monitor, click the following article number to view the article in the Microsoft Knowledge Base:
177415 (/Feedback.aspx?kbNumber=177415/) How to use Memory Pool Monitor (Poolmon.exe) to troubleshoot kernel mode memory leaks

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

824684 (/Feedback.aspx?kbNumber=824684/) Description of the standard terminology that is used to describe Microsoft software updates

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APPLIES TO
• Windows Vista Enterprise 64-bit Edition
• Windows Vista Home Basic 64-bit Edition
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Business
• Windows Vista Business 64-bit Edition
• Windows Vista Enterprise
• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Ultimate
• Microsoft Windows XP Professional
• Microsoft Windows XP Home Edition

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Keywords: 
kbexpertisebeginner kbfix kbqfe kbhotfixserver KB950162

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
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