DOCUMENT:Q306026 06-AUG-2002 [winnt] TITLE :Lsass.exe Uses Excessive CPU Time After SFU User Password Change PRODUCT :Microsoft Windows NT PROD/VER::2.0 OPER/SYS: KEYWORDS:kbtoolkbfixlist ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows Services for UNIX, version 2.0 ------------------------------------------------------------------------------- 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\ 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 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.