Applies ToWindows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Foundation Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Web Edition

Symptoms

Consider the following scenario:

  • You enable Driver Verifier on a computer that is running Windows Server 2008 R2 and that meets the following conditions:

    • The computer has four or more processor sockets. For example, the computer has four Westmere-EX processors.

    • The x2APIC mode is enabled in the BIOS.

  • You try to start the computer.

In this scenario, you receive the following Stop error code in the startup process if no debugger is attached to the computer:

STOP 0x0000005C ( parameter1 , parameter2 , parameter3 , parameter4 ) HAL_INITIALIZATION_FAILED

If you attach a debugger to the computer, an assertion failure occurs, and you receive the following error message instead:

A driver has enumerated two child PDO's that return identical Device Ids.

Cause

This issue occurs because the ACPI driver (Acpi.sys) incorrectly creates a duplicated physical device object (PDO) when some APIC IDs are larger than a value of 255.

Resolution

Hotfix information

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, you must be running Windows Server 2008 R2 or Windows Server 2008 R2 Service Pack 1 (SP1).For more information about how to obtain a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix, you do not have to change the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2008 R2 file information notes

Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.1.760 0.16xxx

    Windows Server 2008 R2

    RTM

    GDR

    6.1.760 0.20xxx

    Windows Server 2008 R2

    RTM

    LDR

    6.1.760 1.17xxx

    Windows Server 2008 R2

    SP1

    GDR

    6.1.760 1.21xxx

    Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. MANIFEST files and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Acpi.sys

6.1.7600.16776

334,208

08-Mar-2011

06:22

x64

Errdev.sys

6.1.7600.16385

9,728

13-Jul-2009

23:31

x64

Wmiacpi.sys

6.1.7600.16385

14,336

13-Jul-2009

23:31

x64

Acpi.sys

6.1.7600.20918

334,208

08-Mar-2011

06:30

x64

Errdev.sys

6.1.7600.16385

9,728

13-Jul-2009

23:31

x64

Wmiacpi.sys

6.1.7600.16385

14,336

13-Jul-2009

23:31

x64

Acpi.sys

6.1.7601.17574

334,208

08-Mar-2011

06:38

x64

Errdev.sys

6.1.7600.16385

9,728

13-Jul-2009

23:31

x64

Wmiacpi.sys

6.1.7600.16385

14,336

13-Jul-2009

23:31

x64

Acpi.sys

6.1.7601.21677

334,208

08-Mar-2011

06:18

x64

Errdev.sys

6.1.7600.16385

9,728

13-Jul-2009

23:31

x64

Wmiacpi.sys

6.1.7600.16385

14,336

13-Jul-2009

23:31

x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Acpi.sys

6.1.7600.16776

833,920

08-Mar-2011

05:25

IA-64

Errdev.sys

6.1.7600.16385

25,088

13-Jul-2009

23:29

IA-64

Wmiacpi.sys

6.1.7600.16385

31,744

13-Jul-2009

23:29

IA-64

Acpi.sys

6.1.7600.20918

834,432

08-Mar-2011

05:15

IA-64

Errdev.sys

6.1.7600.16385

25,088

13-Jul-2009

23:29

IA-64

Wmiacpi.sys

6.1.7600.16385

31,744

13-Jul-2009

23:29

IA-64

Acpi.sys

6.1.7601.17574

834,432

08-Mar-2011

05:19

IA-64

Errdev.sys

6.1.7600.16385

25,088

13-Jul-2009

23:29

IA-64

Wmiacpi.sys

6.1.7600.16385

31,744

13-Jul-2009

23:29

IA-64

Acpi.sys

6.1.7601.21677

834,432

08-Mar-2011

05:06

IA-64

Errdev.sys

6.1.7600.16385

25,088

13-Jul-2009

23:29

IA-64

Wmiacpi.sys

6.1.7600.16385

31,744

13-Jul-2009

23:29

IA-64

Workaround

To work around this issue, disable Driver Verifier on the computer.

Status

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

More Information

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

Additional file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2

File name

Amd64_acpi.inf_31bf3856ad364e35_6.1.7600.16776_none_7e898d78e7afc7f1.manifest

File version

Not applicable

File size

3,168

Date (UTC)

08-Mar-2011

Time (UTC)

15:22

Platform

Not applicable

File name

Amd64_acpi.inf_31bf3856ad364e35_6.1.7600.20918_none_7f560c46009aefea.manifest

File version

Not applicable

File size

3,168

Date (UTC)

08-Mar-2011

Time (UTC)

15:22

Platform

Not applicable

File name

Amd64_acpi.inf_31bf3856ad364e35_6.1.7601.17574_none_806de9eae4d8012f.manifest

File version

Not applicable

File size

3,168

Date (UTC)

08-Mar-2011

Time (UTC)

15:22

Platform

Not applicable

File name

Amd64_acpi.inf_31bf3856ad364e35_6.1.7601.21677_none_80fa8793fdf2ecfe.manifest

File version

Not applicable

File size

3,168

Date (UTC)

08-Mar-2011

Time (UTC)

15:22

Platform

Not applicable

File name

Update-bf.mum

File version

Not applicable

File size

2,301

Date (UTC)

08-Mar-2011

Time (UTC)

15:13

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_acpi.inf_31bf3856ad364e35_6.1.7600.16776_none_226c95eb2f505fb7.manifest

File version

Not applicable

File size

3,166

Date (UTC)

08-Mar-2011

Time (UTC)

15:14

Platform

Not applicable

File name

Ia64_acpi.inf_31bf3856ad364e35_6.1.7600.20918_none_233914b8483b87b0.manifest

File version

Not applicable

File size

3,166

Date (UTC)

08-Mar-2011

Time (UTC)

15:14

Platform

Not applicable

File name

Ia64_acpi.inf_31bf3856ad364e35_6.1.7601.17574_none_2450f25d2c7898f5.manifest

File version

Not applicable

File size

3,166

Date (UTC)

08-Mar-2011

Time (UTC)

15:14

Platform

Not applicable

File name

Ia64_acpi.inf_31bf3856ad364e35_6.1.7601.21677_none_24dd9006459384c4.manifest

File version

Not applicable

File size

3,166

Date (UTC)

08-Mar-2011

Time (UTC)

15:14

Platform

Not applicable

File name

Update-bf.mum

File version

Not applicable

File size

1,895

Date (UTC)

08-Mar-2011

Time (UTC)

15:13

Platform

Not applicable

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