This article was previously published under Q318988
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
The cluster node performs a random bugcheck and you receive either of the following error messages:
STOP 0x000000b8 ATTEMPTED_SWITCH_FROM_DPC (b8)A wait operation, attach process, or yield was attempted from a DPC routine.
This is an illegal operation and the stack track will lead to the offendingcode and original DPC routine.
STOP 0x000000D1 DRIVER_IRQL_NOT_LESS_OR_EQUAL
When these error messages occur, the cluster fails over as expected.
The following text is the stack track for the Stop 0x000000b8 error:
This problem may occur if the Clusnet.sys driver is loaded when the computer starts, which is at the wrong time. The load time may have been changed by a third-party vendor.
To resolve this problem, obtain the latest service pack for Microsoft 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
In Windows 2000 Service Pack 4 (SP4), Windows will allow the cluster driver to fail to load, and an event ID message will be logged. When the Cluster service starts, it will try to reload the driver. At that time, packages will be initialized, and the cluster will work as expected.
You can also perform the following procedure to resolve this problem.
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
Start Registry Editor (Regedit.exe)
Locate and then click the following registry subkey: