The NFS services stop responding after a certain period when you use a Windows Server 2008-based server that has NFS installed to export NFS shares

Article ID: 967670 – Last Review: March 4, 2009 – Revision: 1.0

The NFS services stop responding after a certain period when you use a Windows Server 2008-based server that has NFS installed to export NFS shares

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SYMPTOMS

Consider the following scenario:

  • You have a Windows Server 2008-based server that has Microsoft Services for Network File System (NFS) installed.
  • The server exports NFS shares to NFS clients.

In this scenario, the NFS services stop responding after a certain period. The NFS clients cannot access the shares that they have mounted. Also, the clients cannot mount the other shares from the NFS server. Additionally, when you run the showmount command prompt utility or the rpcinfo command prompt utility against the NFS server, a time-out error may occur.

Note The NFS services recover after you restart the NFS server.

CAUSE

This problem occurs because an acquired Mutex object is not released in a code path. This makes the NFS services unresponsive.

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=support (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.

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, the computer must run Windows Server 2008. Also, Services for NFS must be 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.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

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 Server 2008 file information note

The MANIFEST (.manifest) files and the MUM (.mum) files that are installed for each environment are listed separately. The 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, whose attributes are not listed, are signed by using a Microsoft digital signature.

Windows Server 2008 and Windows Server Core, x86-based version
Collapse this tableExpand this table
File name File version File size Date Time Platform
Msnfsflt.mof Not applicable 4,437 18-Dec-2007 21:26 Not applicable
Msnfsflt.sys 6.0.6001.22375 23,040 12- Feb-2009 02:57 x86
Nfs-servercore-ppdlic.xrm- ms Not applicable 3,001 12-Feb-2009 05:09 Not applicable
Nfssvc.exe 6.0.6001.22375 27,136 12- Feb-2009 05:40 x86
Nfssvr.mof Not applicable 6,172 18-Dec-2007 21:26 Not applicable
Nfssvr.sys 6.0.6001.22375 493,568 12- Feb-2009 02:57 x86
Windows Server 2008 and Windows Server Core, x64-based version
Collapse this tableExpand this table
File name File version File size Date Time Platform
Msnfsflt.mof Not applicable 4,437 18-Dec-2007 21:26 Not applicable
Msnfsflt.sys 6.0.6001.22375 29,696 12- Feb-2009 03:31 x64
Nfs-servercore-ppdlic.xrm- ms Not applicable 3,001 12-Feb-2009 05:43 Not applicable
Nfssvc.exe 6.0.6001.22375 31,744 12- Feb-2009 06:14 x64
Nfssvr.mof Not applicable 6,172 18-Dec-2007 21:26 Not applicable
Nfssvr.sys 6.0.6001.22375 645,632 12- Feb-2009 03:32 x64
Windows Server 2008, Itanium-based version
Collapse this tableExpand this table
File name File version File size Date Time Platform
Msnfsflt.mof Not applicable 4,437 18-Dec-2007 21:26 Not applicable
Msnfsflt.sys 6.0.6001.22375 64,512 12- Feb-2009 02:03 IA-64
Nfs-servercore-ppdlic.xrm- ms Not applicable 3,001 12-Feb-2009 04:19 Not applicable
Nfssvc.exe 6.0.6001.22375 64,512 12- Feb-2009 04:47 IA-64
Nfssvr.mof Not applicable 6,172 18-Dec-2007 21:26 Not applicable
Nfssvr.sys 6.0.6001.22375 1,403,904 12 -Feb-2009 02:04 IA-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  (/Feedback.aspx?kbNumber=824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

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

Collapse this tableExpand this table
File name Package_for_kb967670_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not applicable
File size 1,409
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name Package_for_kb967670_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not applicable
File size 1,422
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name Package_for_kb967670_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not applicable
File size 1,423
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name Package_for_kb967670_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not applicable
File size 1,430
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name X86_microsoft-windows-nfs- servercore_31bf3856ad364e35_6.0.6001.22375_none_5be79b09209d8f60.manifest
File version Not applicable
File size 50,906
Date (UTC) 12-Feb-2009
Time (UTC) 05:59

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

Collapse this tableExpand this table
File name Amd64_microsoft-windows -nfs- servercore_31bf3856ad364e35_6.0.6001.22375_none_b806368cd8fb0096.manifest
File version Not applicable
File size 50,940
Date (UTC) 12-Feb-2009
Time (UTC) 06:33
File name Package_for_kb967670_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not applicable
File size 1,417
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name Package_for_kb967670_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not applicable
File size 1,430
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name Package_for_kb967670_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not applicable
File size 1,431
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name Package_for_kb967670_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not applicable
File size 1,438
Date (UTC) 12-Feb-2009
Time (UTC) 18:42

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

Collapse this tableExpand this table
File name Ia64_microsoft-windows- nfs- servercore_31bf3856ad364e35_6.0.6001.22375_none_5be93eff209b985c.manifest
File version Not applicable
File size 50,923
Date (UTC) 12-Feb-2009
Time (UTC) 05:03
File name Package_for_kb967670_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File version Not applicable
File size 1,427
Date (UTC) 12-Feb-2009
Time (UTC) 18:42
File name Package_for_kb967670_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File version Not applicable
File size 1,434
Date (UTC) 12-Feb-2009
Time (UTC) 18:42

APPLIES TO
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
Keywords: 
kbautohotfix kbexpertiseadvanced kbfix kbsurveynew kbqfe kbhotfixserver KB967670

 

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