Winsock Shutdown Can Increase CPU Usage to 100 Percent (282865)

The information in this article applies to:

Microsoft Windows 2000 Server
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Professional

This article was previously published under Q282865

SYMPTOMS

The Notes Admin client software monitors hundreds of Domino servers. The client can have several threads running with active connections. 100 percent CPU kernel usage can occur with shutdown and connect calls.

CAUSE

This behavior can occur when multiple threads are making kernel block RemoveIoCompletion and socket shutdown calls, result in a deadlock.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

   Date       Time    Version        Size     File name
   -------------------------------------------------------
   12/5/2000  07:12p  5.0.2195.3055  118,704  Afd.sys
   2/15/2001  11:58a  5.0.2195.3207  104,720  Msafd.dll
   1/17/2001  04:43p  5.0.2195.3163  311,472  Tcpip.sys
   12/5/2000  07:11p  5.0.2195.3055   16,240  Tdi.sys
   2/15/2001  11:58a  5.0.2195.2104   17,680  Wshtcpip.dll

STATUS

Microsoft has confirmed that this is a problem in Microsoft Windows 2000. This problem was first corrected in Windows 2000 Service Pack 3.

MORE INFORMATION

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:

265173 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:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Modification Type:	Minor	Last Reviewed:	9/26/2005
Keywords:	kbHotfixServer kbQFE kbbug kbfix kbnetwork kbWin2000PreSP3Fix kbWin2000sp3fix KB282865