Microsoft KB Archive/812214

= Preloading of NetBIOS Names May Cause a Non-Paged Pool Leak =

Article ID: 812214

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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SYMPTOMS
Preloading of NetBIOS names from the Lmhost file may cause a non-paged pool leak with Nbt0 and Nbt tags on Windows NT 4.0-based computers. Performance Monitor shows an increase in pool non-paged bytes. If you turn on pool tagging and run the PoolMon tool, you may see increasing non-paged pool memory with Nbt0 and Nbt tags. If this problem persists, the computer eventually runs out of non-paged pool and stops responding (hangs). You must restart the computer to recover from this memory leak.

You can reproduce this problem by running the nbtstat -R command. Each time that you run this command, non-paged pool leaks with Nbt0 and Nbt tags.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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.

The English version of this fix 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  Platform ---  30-Dec-2002  22:14  4.0.1381.7205  125,200  Netbt.sys  x86 Note Because of file dependencies, this hotfix requires Microsoft Windows NT 4.0 Service Pack 6a.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbhotfixserver kbqfe kbqfe kbfix kbbug KB812214

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