Microsoft KB Archive/890352

= A program may stop responding, and event 50 and event 26 are logged, when the program tries to write data to a volume mount point on a Windows Server 2003-based computer =

Article ID: 890352

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems

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SYMPTOMS
When a program that is running on a Microsoft Windows Server 2003-based computer tries to write data to a volume mount point, your program may stop responding. The following events are logged to the System log:

Event message 1 Event Type: Warning

Event Source: MRxSmb

Event ID: 50

Description:

{Delayed Write Failed} Windows was unable to save all the data for the file \ \LanmanRedirector. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere.

Data: 0000: 00040004 00560002 00000000 80040032 0010: 00000000 c000020c 00000000 00000000 0020: 00000000 00000000 c000020c Event message 2 Event Type: Information

Event Source: Application Popup

Event ID: 26

Description:

Application popup: Windows - Delayed Write Failed : Windows was unable to save all the data for the file \\ \ \. This data has been lost. This error may be cause by a failure on your computer hardware or network connection. Please try to save this file elsewhere.



CAUSE
This problem occurs when the program writes to a volume mount point that is located on a storage area network (SAN) that is connected by using a Universal Naming Convention (UNC) connection.

Note This problem does not occur when the program writes to a volume that is connected by using a drive letter mapping.

This problem occurs because data transfers from the client to the server do not progress. Subsequently, Windows disconnects from the volume mount point. Therefore, Windows cannot write to the volume mount point.



Hotfix information
A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

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 2003, 32-bit versions
  Date         Time   Version       Size       File name --  11-Jan-2005  10:43  5.2.3790.247  2,407,936  Ntkrnlmp.exe 11-Jan-2005 10:06  5.2.3790.247  2,064,896  Ntkrnlpa.exe 11-Jan-2005 10:06  5.2.3790.247  2,109,952  Ntkrpamp.exe 11-Jan-2005 10:48  5.2.3790.247  2,208,768  Ntoskrnl.exe 11-Jan-2005 10:44  5.2.3790.247    355,840  Srv.sys

Windows Server 2003, Enterprise Edition for Itanium-based Systems
  Date         Time   Version       Size       File name --  11-Jan-2005  10:34  5.2.3790.247  5,606,912  Ntkrnlmp.exe 11-Jan-2005 10:34  5.2.3790.247    994,304  Srv.sys



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information about mount point volumes, click the following article number to view the article in the Microsoft Knowledge Base:

205524 How to create and manipulate NTFS junction points

For more information, 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

Additional query words: DataProtector Compactor

Keywords: kbhotfixserver kbbug kbfix kbqfe kbwinserv2003presp1fix KB890352

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