Article ID: 827479
Article Last Modified on 10/26/2006
APPLIES TO
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
SYMPTOMS
Your Microsoft Windows 2000-based server may intermittently stop responding, and an event that is similar to the following is logged in the system event log::
Event ID: 54
Source: NPFS
Description: An IO Request to the device \Device\NamedPipe did not complete or canceled within the specific timeout. This can occur if the device driver does not set a cancel routine for a given IO request packet.
CAUSE
This problem may occur in the Named Pipes File System (NPFS) if the following conditions are true:
- A program requests an operation to be performed (for example, a read operation).
- NPFS obtains a shared lock on a Volume Control Block (VCB) and then obtains an exclusive lock on the same VCB to complete the operation.
- The operation is canceled by the program that requested the operation.
RESOLUTION
Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Prerequisites
No prerequisites are required.
Restart Requirement
You do not have to 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) 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 tool in Control Panel.
Date Time Version Size File name ---------------------------------------------------- 20-Aug-2003 20:57 5.0.2195.6808 37,168 Npfs.sys
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
MORE INFORMATION
For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
816915 New Naming Schema for Microsoft Windows Hotfix Packages
Additional query words: sooper.exe
Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB827479
