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Q306026: Lsass.exe Uses Excessive CPU Time After SFU User Password Change

Article: Q306026
Product(s): Microsoft Windows NT
Version(s): 2.0
Operating System(s): 
Keyword(s): kbtoolkbfixlist
Last Modified: 06-AUG-2002

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The information in this article applies to:

- Microsoft Windows Services for UNIX, version 2.0 
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SYMPTOMS
========

Changing a password for a user account for a Services for UNIX (SFU) user may
cause CPU usage for the Local Security Authority Server service (LSASS) to go to
98 percent for some time. You can see the CPU usage for this process on the
Processes tab in Windows Task Manager.


CAUSE
=====

This issue occurs because the Network Information service (NIS) process
(Nissvc.exe) makes many Lightweight Directory Access Protocol (LDAP) requests to
rebuild the UNIX files in the following folder:

  %Homedrive%\SFU\Nis\MapCache\<Domainname>

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 systems
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 should have the following file attributes or
later:

  Date         Time   Version         Size     File name
  ---------------------------------------------------------
  06-Aug-2001  12:54  5.3000.1314.4    81,920  Nisprop.dll
  20-Sep-2001  07:04  5.3000.1314.11  138,240  Nissvc.exe
  16-Aug-2001  08:15  5.3000.1314.11   89,600  Pswdsync.dll



STATUS
======

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

Additional query words: slow

======================================================================
Keywords          : kbtool kbfixlist
Technology        : kbWinServiceUNIX200 kbWinServiceUNIXSearch
Version           : :2.0
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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