Article ID: 182540
Article Last Modified on 11/1/2006
APPLIES TO
- Microsoft Windows NT Server 4.0, Terminal Server Edition
- Microsoft Windows NT Server 4.0 Standard Edition
- Microsoft Windows NT Workstation 4.0 Developer Edition
- Microsoft Windows NT Server 4.0 Enterprise Edition
This article was previously published under Q182540
SYMPTOMS
Under very specific circumstances, Windows NT may fail to assign a system-
relative Interrupt Request Level (IRQL) to a Peripheral Component
Interconnect (PCI) device.
A driver first calls HalAssignSlotResources to retrieve the bus-relative
IRQL for the PCI device. When the driver calls HalGetInterruptVector to map
the bus-relative IRQL, the call may fail.
CAUSE
This problem is caused when a multiprocessor hardware-abstraction layer
(HAL) is used on a specific PCI configuration. For any non-zero bus, if a
PCI device is at Device #0 and it is the only PCI device on that bus, the
interrupt assignment fails. If there is more than one PCI device on the
bus, this problem does not occur.
This problem has occurred on systems with PCI Accelerated Graphics Port
(AGP) video devices because they are typically the only devices on the bus
and they are not on bus zero. Also, systems with multiple PCI buses might
have this problem.
RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
MORE INFORMATION
Hardware developers writing device drivers under multiple PCI bus systems
may experience this problem. If your PCI device drivers are configured as
described above and you experience this failure when calling
HalGetInterruptVector, contact Microsoft Technical Support to obtain a
hotfix.
Keywords: kbhotfixserver kbqfe kbbug kbfix KB182540