DOCUMENT:Q171180  09-AUG-2001  [winnt]
TITLE   :Non-Paged Pool Memory Leak in IRP Pool Tag
PRODUCT :Microsoft Windows NT
PROD/VER:winnt:4.0
OPER/SYS:
KEYWORDS:kbWinNT400sp4fix

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The information in this article applies to:

 - Microsoft Windows NT Server version 4.0 
 - Microsoft Windows NT Server version 4.0, Terminal Server Edition 
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SYMPTOMS
========

Running a service or an application that makes repeated SCSI ioctl calls may
cause the computer running Windows NT Server to stop responding (hang).

CAUSE
=====

The computer running Windows NT Server is running out of non-paged pool memory.
This happens because an I/O request packet (IRP) is being allocated and is never
released.




RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or
Windows NT Server 4.0, Terminal Server Edition. For additional information,
please see the following article in the Microsoft Knowledge Base:

   Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack


STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT
Server 4.0, Terminal Server Edition. This problem was first corrected in Windows
NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition
Service Pack 4.



Additional query words:

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Keywords          : kbWinNT400sp4fix 
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbNTTermServ400 kbNTTermServSearch
Version           : winnt:4.0
Hardware          : x86
Issue type        : kbbug
Solution Type     : kbfix

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Copyright Microsoft Corporation 2001.