The DFS Replication service crashes randomly in x64-based versions of Windows Server 2008 R2

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Article ID: 979524 - View products that this article applies to.
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SYMPTOMS

The Distributed File System (DFS) Replication service crashes randomly on a computer that is running an x64-based version of Windows Server 2008 R2. Additionally, you may experience one or more of the following symptoms:
  • You receive the following error message:
    Distributed File System Replication has stopped working
  • The following event is logged in the Application log:

    Log Name: Application Source: Application Error Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: <computer name> Description: Faulting application DFSRs.exe, version <file version>, time stamp <time stamp>, faulting module ntdll.dll, version <file version>, time stamp <time stamp>, exception code 0xc0000005, fault offset <offset>, process id <id>, application start time <time>.

  • The following event is logged in the System log:

    Event ID: 7031 Source: Service Control Manager Description: The DFS Replication service terminated unexpectedly The following corrective action will be taken in 60000 milliseconds: Restart the service.

CAUSE

This issue occurs because the DFS Replication service performs asynchronous local I/O requests incorrectly when the service is under stress.

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
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 a x64-based version of Windows Server 2008 R2. Additionally, the DFS Replication service under the File Server role 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.

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
  • 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 Server 2008 R2" section. MUM and 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dfsrprovs.mofNot applicable75,20013-Jul-200920:20Not applicable
Dfsrress.dll6.1.7600.163852,04814-Jul-200901:26x64
Dfsrs.exe6.1.7600.206214,505,08819-Jan-201010:24x64

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, click the following article number to view the article in the Microsoft Knowledge Base:
978538 The DFS Replication service crashes randomly in Windows Server 2008
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
Collapse this tableExpand this table
File nameAmd64_565b6ac63673d1f2681c09bb986826a3_31bf3856ad364e35_6.1.7600.20621_none_a63a6da92616081c.manifest
File versionNot applicable
File size712
Date (UTC)20-Jan-2010
Time (UTC)15:58
PlatformNot applicable
File nameAmd64_microsoft-windows-dfsr-core-serveronly_31bf3856ad364e35_6.1.7600.20621_none_fa472194da68e232.manifest
File versionNot applicable
File size35,681
Date (UTC)20-Jan-2010
Time (UTC)15:58
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,310
Date (UTC)20-Jan-2010
Time (UTC)15:58
PlatformNot applicable

Call stack information

The following is a sample of the call stack that is generated when the issue occurs:
0:012> dps 0x00000000`0035b8e0
00000000`0035b8e0  00000000`00000000
00000000`0035b8e8  000e1780`00006803
00000000`0035b8f0  00000000`76d88f15 ntdll!RtlFreeHeap+0x1a2 
00000000`0035b8f8  00000000`76c3c4ca kernel32!HeapFree+0xa 
00000000`0035b900  000007fe`fd3f10c0 msvcrt!free+0x1c 
00000000`0035b908  00000000`ff603493 dfsrs!AsyncBuffers::FreeAsyncBuffers+0x9f 
00000000`0035b910  00000000`ff605d68 dfsrs!AsyncUnbufferedFileReader::Close+0x40 
00000000`0035b918  00000000`ff605c20 dfsrs!AsyncUnbufferedFileReader::`scalar deleting destructor'+0x3c
00000000`0035b920  00000000`ff624aea dfsrs!MarshalContext::~MarshalContext+0xba 
00000000`0035b928  00000000`ff62ccdb dfsrs!MarshalFileReader::`scalar deleting destructor'+0x47
00000000`0035b930  00000000`ff6dc6c1 dfsrs!OutConnection::OpenFile+0x222d 
00000000`0035b938  00000000`ff7509d5 dfsrs!UpstreamTransport::OpenFile+0xd5 
00000000`0035b940  00000000`ff735f9d dfsrs!InitializeFileTransferAsyncState::ProcessIoCompletion+0x909 
00000000`0035b948  00000000`ff72ad1e dfsrs!IoPortManager::ThreadEntryProc+0x272 
00000000`0035b950  00000000`76c2be3d kernel32!BaseThreadInitThunk+0xd

Properties

Article ID: 979524 - Last Review: March 4, 2010 - Revision: 2.0
APPLIES TO
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Standard
Keywords: 
kbexpertiseadvanced kbqfe kbhotfixserver kbfix kbsurveynew kbautohotfix KB979524

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