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Not sure if this is the right fix? We've added this issue to our memory dump diagnostic which can confirm.

Support for Windows Vista Service Pack 1 (SP1) ends on July 12, 2011. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2). For more information, refer to this Microsoft web page: Support is ending for some versions of Windows.

Symptoms

On a computer that is running Windows Server 2008 or Windows Vista, you may receive the following Stop error message:

0x00000019 (00000021, parameter2, parameter3, parameter4)
BAD_POOL_HEADER

This behavior occurs when you change the Internet SCSI (iSCSI) configurations on the computer and retrieve some iSCSI connection statistics by using Windows Management Instrumentation(WMI).

Note

  • The parameters in this error message vary, depending on the configuration of the computer.

  • Not all "0x00000019" Stop errors are caused by this problem.

Cause

The iSCSI driver (Msiscsi.sys) does not manage allocated pool space correctly. This behavior leads to pool corruption. Therefore, when the corrupted pool is accessed, the system triggers the stop code 0x00000019.

Resolution

Hotfix information

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

A supported hotfix is 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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, the computer must be running one of the following operating systems:

  • Windows Vista Service Pack 1 (SP1)

  • Windows Vista Service Pack 2 (SP2)

  • Windows Server 2008

  • Windows Server 2008 Service Pack 2 (SP2)

For more information about how to install the Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:

935791 How to obtain the latest Windows Vista service pack

For more information about how to install the Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

968849 How to obtain the latest service pack for Windows Server 2008

Restart requirement

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

Hotfix replacement information

This hotfix does not replace any other hotfix.

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 and Windows Server 2008 file information note

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment arelisted separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.


For all supported x86-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Iscsi.inf

Not Applicable

7,436

13-Aug-2009

08:56

Not Applicable

SP1

SP

Iscsilog.dll

6.0.6001.22496

16,384

13-Aug-2009

11:39

x86

SP1

SP

Msiscsi.sys

6.0.6001.22496

179,784

13-Aug-2009

14:28

x86

SP1

SP

Iscsi.inf

Not Applicable

7,436

13-Aug-2009

08:57

Not Applicable

SP2

SP

Iscsilog.dll

6.0.6002.22198

16,384

13-Aug-2009

11:36

x86

SP2

SP

Msiscsi.sys

6.0.6002.22198

179,768

13-Aug-2009

14:40

x86

SP2

SP

For all supported Itanium-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Iscsi.inf

Not Applicable

7,440

13-Aug-2009

08:56

Not Applicable

SP1

SP

Iscsilog.dll

6.0.6001.22496

16,384

13-Aug-2009

11:48

IA-64

SP1

SP

Msiscsi.sys

6.0.6001.22496

494,680

13-Aug-2009

14:24

IA-64

SP1

SP

Iscsi.inf

Not Applicable

7,440

13-Aug-2009

08:56

Not Applicable

SP2

SP

Iscsilog.dll

6.0.6002.22198

16,384

13-Aug-2009

11:40

IA-64

SP2

SP

Msiscsi.sys

6.0.6002.22198

494,648

13-Aug-2009

14:14

IA-64

SP2

SP

For all supported x64-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Iscsi.inf

Not Applicable

7,444

13-Aug-2009

08:54

Not Applicable

SP1

SP

Iscsilog.dll

6.0.6001.22496

16,384

13-Aug-2009

11:51

x64

SP1

SP

Msiscsi.sys

6.0.6001.22496

214,104

13-Aug-2009

14:27

x64

SP1

SP

Iscsi.inf

Not Applicable

7,444

13-Aug-2009

08:58

Not Applicable

SP2

SP

Iscsilog.dll

6.0.6002.22198

16,384

13-Aug-2009

11:51

x64

SP2

SP

Msiscsi.sys

6.0.6002.22198

214,600

13-Aug-2009

14:40

x64

SP2

SP


Additional file information for Windows Server 2008 and for Windows Vista

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Package_for_kb974201_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

14,038

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_client_2~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,697

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_client~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,715

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

24,616

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,693

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,703

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

24,336

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,697

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,715

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

15,388

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,431

14-Aug-2009

08:38

Not Applicable

X86_iscsi.inf_31bf3856ad364e35_6.0.6001.22496_none_3cf21aa10d07dcf0.manifest

Not Applicable

2,250

14-Aug-2009

08:44

Not Applicable

X86_iscsi.inf_31bf3856ad364e35_6.0.6002.22198_none_3eda8d1d0a2c64c2.manifest

Not Applicable

2,250

14-Aug-2009

08:44

Not Applicable

Additional files for all supported Itanium-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Ia64_iscsi.inf_31bf3856ad364e35_6.0.6001.22496_none_3cf3be970d05e5ec.manifest

Not Applicable

2,251

14-Aug-2009

08:38

Not Applicable

Ia64_iscsi.inf_31bf3856ad364e35_6.0.6002.22198_none_3edc31130a2a6dbe.manifest

Not Applicable

2,251

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

6,986

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc_1~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,531

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,706

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

6,713

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server_1~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,535

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,718

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

4,795

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,434

14-Aug-2009

08:38

Not Applicable

Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Amd64_iscsi.inf_31bf3856ad364e35_6.0.6001.22496_none_9910b624c5654e26.manifest

Not Applicable

2,252

14-Aug-2009

09:05

Not Applicable

Amd64_iscsi.inf_31bf3856ad364e35_6.0.6002.22198_none_9af928a0c289d5f8.manifest

Not Applicable

2,252

14-Aug-2009

09:05

Not Applicable

Package_for_kb974201_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

14,168

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_client_2~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,709

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_client~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,725

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

24,822

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,705

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,713

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

24,540

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,709

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_server~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,725

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

15,516

14-Aug-2009

08:38

Not Applicable

Package_for_kb974201_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,439

14-Aug-2009

08:38

Not Applicable

Status

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

References

For more information about software update terminology, 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

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