Event ID 2019 is logged in the System log when a DFS domain root server stops responding on a Windows Server 2003-based server

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

SYMPTOMS
When a Distributed File System (DFS) domain root server stops responding on a Windows Server 2003-based server, all the applications and services that are running become unavailable. Additionally, the following event is logged in the System log:


Event Type: Error
Event Source: Srv
Event Category: None
Event ID: 2019
Description: The server was unable to allocate from the system nonpaged pool because the pool was empty.

CAUSE
This problem occurs because the DFS service does not manage the allocated nonpaged pools very well. When allocated nonpaged pools are not managed well, memory leaks may occur. The DFS domain root server stops responding because the system nonpaged pool is empty.
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 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 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.

Prerequisites

To install this hotfix, you must have Microsoft Windows Server 2003 SP1 or Microsoft Windows Server 2003 SP2 installed.
889100 How to obtain the latest service pack for Windows Server 2003

Restart requirement

You have to restart the 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 with Service Pack 1, x86-based versions
File nameFile versionFile sizeDateTimePlatform
Dfs.sys5.2.3790.295834,81619-Jun-200711:47x86
Windows Server 2003 with Service Pack 2, x86-based versions
File nameFile versionFile sizeDateTimePlatform
Dfs.sys5.2.3790.410234,81619-Jun-200714:05x86
Windows Server 2003, x64-based versions
File nameFile versionFile sizeDateTimePlatform
Dfs.sys5.2.3790.295852,73619-Jun-200715:42x64
Windows Server 2003 with SP2, x64-based versions
File nameFile versionFile sizeDateTimePlatform
Dfs.sys5.2.3790.410252,73619-Jun-200715:48x64
Windows Server 2003 with Service Pack 1, Itanium-based versions
File nameFile versionFile sizeDateTimePlatform
Dfs.sys5.2.3790.2958110,08019-Jun-200715:42IA-64
Windows Server 2003 with Service Pack 2, Itanium-based versions
File nameFile versionFile sizeDateTimePlatform
Dfs.sys5.2.3790.4102110,08019-Jun-200715:48IA-64
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Properties

Article ID: 938666 - Last Review: 10/11/2007 02:21:35 - Revision: 1.4

Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems, Microsoft Windows Server 2003, Enterprise x64 Edition, Microsoft Windows Server 2003, Standard Edition (32-bit x86), Microsoft Windows Server 2003, Standard x64 Edition

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