Q303818: Memory Leak in Rpcss.exe When Freeing ORPC Extends
Article: Q303818
Product(s): Microsoft Windows NT
Version(s): 2000,2000 SP1,2000 SP2,4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5,4.0 SP6a
Operating System(s):
Keyword(s): kbtool kbWinNT400PreSP7Fix kbWin2000PreSP3Fix
Last Modified: 08-MAY-2002
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The information in this article applies to:
- Microsoft Windows versions 2000, 2000 SP1, 2000 SP2 Professional
- Microsoft Windows versions 2000, 2000 SP1, 2000 SP2 Server
- Microsoft Windows versions 2000, 2000 SP1, 2000 SP2 Advanced Server
- Microsoft Windows NT Server versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6a
- Microsoft Windows NT Workstation versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6a
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SYMPTOMS
========
By using Performance Monitor, you might observe a continuous increase in private
bytes for the Rpcss process. This memory leak in Rpcss.exe occurs with COM and
DCOM programs.
CAUSE
=====
This issue occurs because a virtual 8-byte allocation is not freed in Rpcss.exe.
RESOLUTION
==========
Windows 2000
------------
A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem. This fix may receive additional
testing at a later time, to further ensure product quality. Therefore, if you
are not severely affected by this problem, Microsoft recommends that you wait
for the next Windows 2000 service pack that contains this fix.
To resolve this problem immediately, contact Microsoft Product Support Services
to obtain the fix. For a complete list of Microsoft Product Support Services
phone numbers and information about support costs, please go to the following
address on the World Wide Web:
http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS
NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.
The English version of this fix should have the following file attributes or
later:
Date Time Size File name
--------------------------------------
20-Sep-01 14:48 941,328 ole32.dll
20-Sep-01 14:48 428,304 rpcrt4.dll
20-Sep-01 14:48 185,104 rpcss.dll
Windows NT 4.0
--------------
A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the
fix. For a complete list of Microsoft Product Support Services phone numbers and
information on support costs, please go to the following address on the World
Wide Web:
http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS
NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.
The English version of this fix should have the following file attributes or
later:
Date Time Size File name
------------------------------------
07/11/2001 20:51 685 KB Ole32.dll
07/14/2001 18:31 105 KB Rpcss.exe
NOTE: Because of file dependencies, this hotfix requires Microsoft Windows NT 4.0
Service Pack 6a.
STATUS
======
Windows 2000
------------
Microsoft has confirmed this to be a problem in Windows 2000.
Windows NT 4.0
--------------
Microsoft has confirmed this to be a problem in Windows NT 4.0.Microsoft has
confirmed this to be a problem in the Microsoft products that are listed at the
beginning of this article.
MORE INFORMATION
================
The private bytes increase in 16-byte or 32-byte allocation units. For
additional information about how to obtain a hotfix for Windows 2000 Datacenter
Server, click the article number below to view the article in the Microsoft
Knowledge Base:
Q265173 The Datacenter Program and Windows 2000 Datacenter Server Product
For additional information about how to install multiple hotfixes with only one
reboot, click the article number below to view the article in the Microsoft
Knowledge Base:
Q296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot
Additional query words:
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Keywords : kbtool kbWinNT400PreSP7Fix kbWin2000PreSP3Fix
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbWinNTW400sp5 kbWinNTW400sp4 kbWinNTW400sp3 kbWinNTW400sp2 kbWinNTW400sp1 kbWinNTSsearch kbWinNTS400sp6 kbWinNTS400sp5 kbWinNTS400sp4 kbWinNTS400sp3 kbWinNTS400sp2 kbWinNTS400sp1 kbWinNTS400search kbWinNTS400 kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbWinAdvServSearch kbWin2000AdvServSP2 kbWin2000AdvServSP1 kbWin2000ProSP2 kbWin2000ProSP1 kbwin2000ServSP1 kbwin2000ServSP2 kbWinNTW400SP6a
Version : :2000,2000 SP1,2000 SP2,4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5,4.0 SP6a
Hardware : ALPHA x86
Issue type : kbbug
Solution Type : kbfix
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