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A computer that is running Windows Server 2003 stops responding (hangs) during startup if many IPv6 addresses are assignedArticle ID: 970659 - View products that this article applies to. On This PageSYMPTOMSA computer that is running Windows Server 2003 stops
responding (hangs) during startup, and then it displays a black screen. This
problem occurs if you have installed the IPv6 protocol on the computer, and you
have assigned many IPv6 addresses to the installed interfaces. This problem is
very likely to occur if there are more than 50 IPv6 addresses assigned to the
interfaces. CAUSEThis problem occurs because of a deadlock
scenario. To initialize IP addresses, the IPv6 stack creates many work items, and this behavior requires the system to read the registry. However, when the Session Management Subsystem (SMSS) starts, it sets an exclusive lock on the registry. Then, the SMSS tries to generate work items that are expected to be handled by worker threads. However, assume that the worker thread queue is full and that no worker threads are free. In this scenario, all the worker threads are blocked because they are waiting for the registry lock to be released. Therefore, a deadlock occurs. RESOLUTIONHotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: http://support.microsoft.com/contactus/?ws=support Note The "Hotfix download available" form displays the languages for
which the hotfix is available. If you do not see your language, it is because a
hotfix is not available for that language.
(http://support.microsoft.com/contactus/?ws=support)
PrerequisitesTo apply this hotfix, you must have Windows Server 2003 Service Pack 2 installed on the computer. For more information, click the following article number to view the article in the Microsoft Knowledge Base:889100
(http://support.microsoft.com/kb/889100/
)
How to obtain the latest service
pack for Windows Server 2003
Restart requirementYou must restart the computer after you apply this hotfix.Hotfix replacement informationThis hotfix does not replace any other hotfixes.File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.Windows Server 2003 with Service Pack 2, x86-based versionsCollapse this table
Windows Server 2003 with Service Pack 2, x64-based versionsCollapse this table
Windows Server 2003 with Service Pack 2, Itanium-based versionsCollapse this table
STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section. MORE INFORMATIONSome known issues may occur after you apply this hotfix.
Refer to the following Microsoft Knowledge Base article to verify your specific
issue and apply hotfix 956770 as appropriate: 956770
(http://support.microsoft.com/kb/956770/
)
FIX: You may have problems when
you add lots of IP addresses on the network adapter of a Windows Server
2003-based computer
REFERENCESFor more information about
software update terminology, click the following article number to view the
article in the Microsoft Knowledge Base: 824684
(http://support.microsoft.com/kb/824684/LN/
)
Description of the standard terminology that is used to describe Microsoft software updatesPropertiesArticle ID: 970659 - Last Review: July 7, 2009 - Revision: 1.1 APPLIES TO
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