Microsoft KB Archive/317151

= Non-paged pool memory leak with Emulex PCI Fibre Channel SCSI Driver =

Article ID: 317151

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q317151



SYMPTOMS
When an Emulex Fibre Channel PCI Host Bus Adapter is installed on a Windows NT-based computer, the computer's performance may degrade or the computer may stop responding (hang) because of a memory leak. For example, you may experience one or more of the following behaviors:  Performance Monitor displays a consistent increase in non-paged pool memory usage. Performance Monitor logs indicate a negative value for the Pool Nonpaged Bytes counter. The pool tag, which indicates the location of the memory leak, is TMRL. The computer stops responding (hangs) or displays a STOP error message similar to one of the following on a blue screen:

Stop 0x0000000a (0x00000002 0x00000002 0x00000001 0x80208669)

Stop 0x0000002d (0x00000000 0x00000000 0x00000000 0x00000000)

STOP 0xffffffff (0x00001310 0x61315c6e 0x74345c73 0x6c697363)





CAUSE
The TMRL pool tag indicates that the memory leak is caused by the Emulex Fibre Channel SCSI driver, Elxsli2.sys. This behavior can occur if the driver is of the following version and date stamp:

Version v4-1.24

December 14, 1999



RESOLUTION
To resolve this issue, contact Emulex to determine whether an updated driver is available that can resolve this behavior.

For more information, browse to the following Emulex Web site:

http://www.emulex.com/ts/index.html



WORKAROUND
To work around this issue, use an earlier version of the driver with which you do not experience the behavior described in the &quot;Symptoms&quot; section of this article.



MORE INFORMATION
For more information about a similar memory leak issue, click the following article number to view the article in the Microsoft Knowledge Base:

265096 &quot;Stop 41&quot; Error Message Occurs and Event 2000 Is Logged

For more information about how to identify memory leaks in Windows NT, click the following article numbers to view the articles in the Microsoft Knowledge Base:

130926 Using Performance Monitor to Identify a Pool Leak

177415 How to Use Poolmon to Troubleshoot Kernel Mode Memory Leaks

For information about how to contact Emulex, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

65416 Hardware and software vendor contact information, A-K

60781 Hardware and software vendor contact information, L-P

60782 Hardware and software vendor contact information, Q-Z

Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kbprb ocsso KB317151

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