A domain controller freezes when an event subscription manager list is long in Windows

Applies to: Windows Server 2012 R2 DatacenterWindows Server 2012 R2 StandardWindows Server 2012 R2 Foundation More

Assume that a domain consists of Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7 Service Pack 1 (SP1), and Windows Server 2008 R2 SP1. An event subscription manager list that is configured by using Group Policy Objects (GPOs) has more than 30 items. In this situation, a deadlock may occur in the thread pool for the Svchost.exe process that hosts network services. This causes other threads that are related to the Svchost.exe process to wait. Therefore, the domain controller freezes.

Resolution


To resolve this issue, we have released an update rollup for Windows 8.1, Windows Server 2012 R2, Windows 8, or Windows Server 2012. We also have released a hotfix for Windows 7 or Windows Server 2008 R2.

Update rollup information

The following update rollup is available.

For Windows 8.1 or Windows Server 2012 R2

Get update rollup 2995388

For Windows 8 or Windows Server 2012

Get update rollup 2995387

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that 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, go to the following Microsoft website: 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 first install SP1 on Windows 7 or Windows 2008 R2. 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 may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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