DOCUMENT:Q245605  08-MAY-2002  [winnt]
TITLE   :Clusdisk.sys May Corrupt Pool Memory
PRODUCT :Microsoft Windows NT
PROD/VER::4.0,4.0 SP4,4.0 SP5,4.0 SP6
OPER/SYS:
KEYWORDS:kbWinNT400PreSP7Fix

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The information in this article applies to:

 - Microsoft Windows NT Server, Enterprise Edition versions 4.0, 4.0 SP4, 4.0 SP5, 4.0 SP6 
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SYMPTOMS
========

Clusdisk.sys may corrupt pool memory if you are running Microsoft Cluster Server
with special pool overrun protection enabled for all tags. When this happens you
may receive a "Stop 0x00000050" error message on boot. For additional
information about enabling pool overrun protection, click the article number
below to view the article in the Microsoft Knowledge Base:

   Q192486 Introduction to Windows NT Kernel Special Pool

CAUSE
=====

This behavior occurs when Clusdisk.sys attempts to write past its allocation
memory.

RESOLUTION
==========

A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems 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 on support costs, please go to the following address on the World
Wide Web:

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

NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.

The English-language version of this fix should have the following file
attributes or later:

   Date       Time      Size    File name      Platform
   ----------------------------------------------------
   11/05/99   4:38 PM   28 KB   Clusdisk.sys   Intel
   11/05/99   4:37 PM   47 KB   Clusdisk.sys   Alpha



STATUS
======

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


Additional query words:

======================================================================
Keywords          : kbWinNT400PreSP7Fix 
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400sp6 kbWinNTSEnt400sp5 kbWinNTSEnt400sp4 kbWinNTSEnt400 kbWinNTS400search
Version           : :4.0,4.0 SP4,4.0 SP5,4.0 SP6
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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

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Copyright Microsoft Corporation 2002.