The System Information tool may report the incorrect number of logical processors on a Windows Server 2003-based computer (908522)
The information in this article applies to:
- Microsoft Windows Server 2003, Datacenter Edition
- Microsoft Windows Server 2003, Datacenter x64 Edition
SYMPTOMS
Consider the following scenario. You use the System Information tool (Msinfo32.exe) to view the processor information on a Microsoft Windows Server 2003-based computer. The Windows Server 2003-based computer uses hyperthreading-enabled processors or dual-core processors. In this scenario, the System Information tool may report an incorrect number of logical processors.
Note To open the System Information tool, click Start, click Run, type msinfo32.exe, and then click OK.
CAUSE
This problem may occur if the number of logical processors exceeds the architectural limit of the operating system.
For example, this problem may occur when the following conditions are true: - The computer on which this problem occurs is running Microsoft Windows Server 2003, Datacenter x64 Edition.
- This computer uses more than 32 hyperthreading-enabled processors or more than 32 dual-core processors.
In this scenario, the system uses more than 64 logical processors. However, Windows Server 2003, Datacenter Edition supports no more than 64-way symmetric multiprocessing. Note In this scenario, a data structure that is used to hold the processor information may not be initialized correctly. Therefore, unpredictable behavior may occur, such as the behavior that is mentioned in the "Symptoms" section. RESOLUTIONHotfix informationA supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. Prerequisites To install this hotfix on x86-based versions of Windows Server 2003, you must have Service Pack 1 (SP1) installed. No prerequisites are required for x64-based versions of Windows Server 2003. Restart requirement You must restart your computer after you apply this hotfix.
Hotfix replacement information This hotfix does not replace any other hotfixes.
File information
The 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 tool in Control Panel.Windows Server 2003, x86-based versions |
Halaacpi.dll | 5.2.3790.2556 | 116,736 | 26-Oct-2005 | 00:30 | x86 | SP1 | Halacpi.dll | 5.2.3790.2556 | 82,944 | 26-Oct-2005 | 00:30 | x86 | SP1 | Halmacpi.dll | 5.2.3790.2556 | 118,272 | 26-Oct-2005 | 00:30 | x86 | SP1 |
Windows Server 2003, x64-based versions |
Hal.dll | 5.2.3790.2556 | 279,040 | 26-Oct-2005 | 19:45 | x64 |
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Modification Type: | Minor | Last Reviewed: | 6/2/2006 |
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Keywords: | kbExpertiseAdvanced kbQFE kbHotfixServer KB908522 kbAudOEM |
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