Windows 7-based or Windows Server 2008 R2-based computer crashes when you run a guest operating system that has multiple virtual CPUs

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Article ID: 2739143 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You run a guest operating system on a computer that is running Hyper-V in Windows Server 2008 R2 Service Pack 1 (SP1).
  • The host server is using an AMD Annapurna system (Trinity FM2) CPU.
  • The guest operating system has multiple virtual CPUs.
  • The host computer experiences high CPU utilization, and overcommits the physical memory.
In this scenario, the computer may crash.

Note
 This issue also occurs when you use third-party virtualization products that support multiple virtual CPUs on a computer that is running Windows 7 SP1 or Windows Server 2008 R2 SP1. For example, this issue occurs when you use VMWare virtualization products or Oracle VM VirtualBox.

Cause

This issue occurs because of a corruption of the physical memory.

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 website:
http://support.microsoft.com/contactus/?ws=support
Note 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 7 Service Pack 1 (SP1) or Windows Server 2008 R2 Service Pack 1 (SP1). For more information about how to obtain a Windows 7 or 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 in this package, you do not have to make any changes to 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 7 and 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:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.760 1.17xxxWindows 7 and Windows Server 2008 R2SP1GDR
    6.1.760 1.21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and for Windows Server 2008 R2" section. 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, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Mcupdate_authenticamd.dll6.1.7601.1792677,16811-Aug-201200:07x86
Mcupdate_authenticamd.dll6.1.7601.2208477,15211-Aug-201200:03x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Mcupdate_authenticamd.dll6.1.7601.1792678,70411-Aug-201201:03x64
Mcupdate_authenticamd.dll6.1.7601.2208478,70411-Aug-201200:52x64

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
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameX86_33a86833d54b1782f637bcfc390007e0_31bf3856ad364e35_6.1.7601.17926_none_27550ac72d01587b.manifest
File versionNot applicable
File size717
Date (UTC)13-Aug-2012
Time (UTC)06:09
PlatformNot applicable
File nameX86_55f8022b096d2f572ff9bc1277978e22_31bf3856ad364e35_6.1.7601.22084_none_ed279ae7fdd661cf.manifest
File versionNot applicable
File size717
Date (UTC)13-Aug-2012
Time (UTC)06:09
PlatformNot applicable
File nameX86_microsoft-windows-m..update-authenticamd_31bf3856ad364e35_6.1.7601.17926_none_ffa239e9afe223f4.manifest
File versionNot applicable
File size2,528
Date (UTC)11-Aug-2012
Time (UTC)00:30
PlatformNot applicable
File nameX86_microsoft-windows-m..update-authenticamd_31bf3856ad364e35_6.1.7601.22084_none_ffe8ccd4c9326ed1.manifest
File versionNot applicable
File size2,528
Date (UTC)11-Aug-2012
Time (UTC)00:28
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_921fcf34a41a6e1e33622c3c25194890_31bf3856ad364e35_6.1.7601.17926_none_b4d9a33b59d8fcea.manifest
File versionNot applicable
File size721
Date (UTC)13-Aug-2012
Time (UTC)06:09
PlatformNot applicable
File nameAmd64_b6c8247c7dac727d7aa410ce05247aee_31bf3856ad364e35_6.1.7601.22084_none_7a7b63cd7bc436b9.manifest
File versionNot applicable
File size721
Date (UTC)13-Aug-2012
Time (UTC)06:09
PlatformNot applicable
File nameAmd64_microsoft-windows-m..update-authenticamd_31bf3856ad364e35_6.1.7601.17926_none_5bc0d56d683f952a.manifest
File versionNot applicable
File size2,530
Date (UTC)11-Aug-2012
Time (UTC)01:29
PlatformNot applicable
File nameAmd64_microsoft-windows-m..update-authenticamd_31bf3856ad364e35_6.1.7601.22084_none_5c076858818fe007.manifest
File versionNot applicable
File size2,530
Date (UTC)11-Aug-2012
Time (UTC)01:19
PlatformNot applicable

Properties

Article ID: 2739143 - Last Review: April 8, 2013 - Revision: 2.0
Applies to
  • Windows Server 2008 R2 Service Pack 1, when used with:
    • Windows Server 2008 R2 Datacenter
    • Windows Server 2008 R2 Enterprise
    • Windows Server 2008 R2 Foundation
    • Windows Server 2008 R2 Standard
  • Windows 7 Service Pack 1, when used with:
    • Windows 7 Home Basic
    • Windows 7 Home Premium
    • Windows 7 Professional
    • Windows 7 Starter
    • Windows 7 Ultimate
    • Windows 7 Enterprise
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbexpertiseadvanced kbsurveynew KB2739143

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