Microsoft KB Archive/150833

= Memory Deallocation Failure in SRV.SYS Directory Notification =

Article ID: 150833

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q150833





SYMPTOMS
Windows NT Version 3.51 may a experience a memory leak in SRV.sys which can slowly consume paged pool resources. This can degrade system performance and cause the system to stop responding.



MORE INFORMATION
The leak will not necessarily occur on all systems and specifically involves File System Run Time allocations (FSrt).

To detect the leak, use performance monitor to determine that the Object Counter Memory: Pool Paged Bytes increases abnormally over time.



CAUSE
The directory notification package allocates a buffer that is not later deallocated under certain circumstances



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem was corrected in the latest Windows NT 3.51 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: 3.50 3.51 prodnt memory leak

Keywords: KB150833

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