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Q136377: Invalid RawWorkItems Calculated on Some MP Computers

Article: Q136377
Product(s): Microsoft Windows NT
Version(s): 3.51
Operating System(s): 
Keyword(s): 
Last Modified: 02-OCT-2001

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The information in this article applies to:

- Microsoft Windows NT Server version 3.51 
- Microsoft Windows NT Workstation version 3.51 
- Microsoft Windows NT Advanced Server, version 3.51 
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SYMPTOMS
========

On an x86-based multiprocessor (MP) computer with an odd number of processors
and 512 megabytes or more of RAM, the following error message appears when you
the Server process starts:

  Insufficient Resources

CAUSE
=====

There is an integer divide problem when calculating the initial number of raw
mode work items. The server is trying to create more than the configured maximum
allowed for raw mode work items. This error only occurs on multiprocessor x86
systems with 512 megabytes or more of RAM and an odd number of processors.

WORKAROUND
==========

To work around this problem:

WARNING: Using Registry Editor incorrectly can cause serious, system-wide
problems that may require you to reinstall Windows NT to correct them. Microsoft
cannot guarantee that any problems resulting from the use of Registry Editor can
be solved. Use this tool at your own risk.

1. Run Registry Editor (REGEDT32.EXE).

2. From the HKEY_LOCAL_MACHINE subtree, go to the following key:

  \SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters

3. From the Edit menu choose Add Value.

4. Add the following:

  Value Name: MaxWorkItems
  Data Type: REG_DWORD
  Data: 100
  Radiux: Decimal

NOTE: MaxWorkItems has a valid range of 1 to 512.

STATUS
======

Microsoft has confirmed this to be a problem Windows NT version 3.51. We are
researching this problem and will post new information in the Microsoft
Knowledge Base as it becomes available.

Additional query words: prodnt 3.51 multi processor mp

======================================================================
Keywords          :  
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTAdvSerSearch kbWinNTAdvServ351 kbWinNTS351search
Version           : :3.51

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