Memory Deallocation Failure in SRV.SYS Directory Notification

 Last reviewed: September 27, 1996
Article ID: Q150833
The information in this article applies to:
  • Microsoft Windows NT Workstation versions 3.51
  • Microsoft Windows NT Server versions 3.51

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

KBCategory: kbnetwork
KBSubcategory: ntnetserv NTSrvWkst
Additional reference words: 3.50 3.51 prodnt memory leak

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Last reviewed: September 27, 1996
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