Large Number of Mounts/Dismounts on an NTFS Partition Causes a Memory Leak

This article was previously published under Q195541
This article has been archived. It is offered "as is" and will no longer be updated.
SYMPTOMS
A system may leak nonpageable memory when a large amount of mounts anddismounts are done on an NTFS partition.
CAUSE
The driver Ntfs.sys does not keep track of a VPB structure if a dismountrequest is followed by an unlock request. The memory leak is small, so theproblem will usually appear after a period of days. POOLMON can be used tocheck this problem. Look for the NtfV tag taking up a lot of thenonpageable memory. Performance Monitor can also be used to monitornonpageable memory use.
RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was first corrected in Windows NT version 4.0 Service Pack 5.
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Properties

Article ID: 195541 - Last Review: 10/11/2013 15:39:37 - Revision: 1.2

  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Server 4.0 Enterprise Edition
  • kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix kbqfe KB195541
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