The Windows Server 2008 failover cluster cannot start because of a deadlock condition in the Cluster service

Applies to: Windows Server 2008 EnterpriseWindows Server 2008 DatacenterWindows Server 2008 Enterprise without Hyper-V

Symptoms


You cannot start the Cluster service on a Windows Server 2008-based computer. Additionally, the following warning is logged in the Cluster service log:
WARN [CS] Cluster Mutex is already held by another process, waiting
You may also find that the Rhs.exe process is running when the issue occurs.

Note In typical situations, the rhs.exe process does not run if the Cluster service is not started.

An event that is similar to the following may also be logged in the system event log:

Cause


The Cluster service cannot start because of a deadlock situation on the SMB server side. Other applications or services may also hit the deadlock situation and encounter exceptions when they use the SMB share. 

Resolution


Service pack information

To resolve this problem, obtain the latest service pack for Windows Server 2008 Service Pack 2. For more information, 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

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: 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.


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.

Prerequisites

To apply this hotfix, you must have Windows Server 2008 installed.

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 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 notes

The .manifest files and the .mum files that are installed in each environment are listed separately in the "Additional file information for Windows Server 2008" section. These files and their associated .cat (security catalog) files are critical to maintaining the state of the updated component. The .cat files are signed with a Microsoft digital signature. The attributes of these security files are not listed.
For all supported 32-bit versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.0.6001.2217898,81614-May-200802:47x86
For all supported 64-bit versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.0.6001.22178141,31214-May-200803:15x64
For all supported Itanium-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.0.6001.22178286,20814-May-200802:57IA-64

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 for Windows Server 2008

Additional files for all supported 32-bit versions of Windows Server 2008

File nameFile versionFile sizeDateTimePlatform
Package_for_kb950811_client_1~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable1,36714-May-200818:48Not Applicable
Package_for_kb950811_client~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable1,43014-May-200818:48Not Applicable
Package_for_kb950811_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable1,42114-May-200818:48Not Applicable
Package_for_kb950811_sc~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable1,42214-May-200818:48Not Applicable
Package_for_kb950811_server_0~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable1,42514-May-200818:48Not Applicable
Package_for_kb950811_server~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable1,43014-May-200818:48Not Applicable
X86_microsoft-windows-smbserver-common_31bf3856ad364e35_6.0.6001.22178_none_041c1ddb297644d0.manifestNot Applicable4,22714-May-200805:57Not Applicable

Additional files for all supported 64-bit versions of Windows Server 2008 and of Windows Vista

File nameFile versionFile sizeDateTimePlatform
Amd64_microsoft-windows-smbserver-common_31bf3856ad364e35_6.0.6001.22178_none_603ab95ee1d3b606.manifestNot Applicable4,49314-May-200811:38Not Applicable
Package_for_kb950811_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable1,37514-May-200818:48Not Applicable
Package_for_kb950811_client~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable1,43814-May-200818:48Not Applicable
Package_for_kb950811_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable1,42914-May-200818:48Not Applicable
Package_for_kb950811_sc~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable1,43014-May-200818:48Not Applicable
Package_for_kb950811_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable1,43314-May-200818:48Not Applicable
Package_for_kb950811_server~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable1,43814-May-200818:48Not Applicable

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

File nameFile versionFile sizeDateTimePlatform
Ia64_microsoft-windows-smbserver-common_31bf3856ad364e35_6.0.6001.22178_none_041dc1d129744dcc.manifestNot Applicable4,48814-May-200811:38Not Applicable
Package_for_kb950811_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mumNot Applicable1,42514-May-200818:48Not Applicable
Package_for_kb950811_sc~31bf3856ad364e35~ia64~~6.0.1.0.mumNot Applicable1,42614-May-200818:48Not Applicable
Package_for_kb950811_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mumNot Applicable1,42914-May-200818:48Not Applicable
Package_for_kb950811_server~31bf3856ad364e35~ia64~~6.0.1.0.mumNot Applicable1,43414-May-200818:48Not Applicable