Memory Leak in Lsass.exe with Large Built-in Groups (262539)
The information in this article applies to:
- Microsoft Windows 2000 Server SP1
- Microsoft Windows 2000 Advanced Server SP1
This article was previously published under Q262539 SYMPTOMS
You might observe a memory leak in Lsass.exe private bytes with the System Monitor tool.
CAUSE
This behavior can occur if the built-in groups (such as the Administrators or Account Operators groups) have very many members. To verify this, use the information in the following Microsoft Knowledge Base article to create a log with System Monitor:
248345 How to Create a Log Using System Monitor in Windows 2000
The leak occurs in the Private Bytes counter for the Lsass process. You can also use the information in the following Microsoft Knowledge Base article and Umdh.exe to verify that the function that is not freeing memory is in Samsrv.dll:
268343 Umdhtools.exe: How to Use Umdh.exe to Find Memory Leaks
RESOLUTIONTo resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name
-----------------------------------------------------
5/10/00 3:41:20 5.00.2195.2092 370,448 Samsrv.dll
4/17/00 9:52:16 5.00.2195.2042 903,952 Ntdsa.dll
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.
| Modification Type: | Minor | Last Reviewed: | 9/26/2005 |
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| Keywords: | kbHotfixServer kbQFE kbbug kbfix kbWin2000PreSP2Fix KB262539 |
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