| Publisher | Microsoft | ||
|---|---|---|---|
| Format | HTML | Date added | 14 Aug 2003 |
| Topics | Interfaces / Buses / I/Os, Windows NT - 2000 - 2003 | ||
| Downloads | 0 | ||
This is the root of the problem: Microsoft developers have found that other devices sharing this interrupt, in particular the USB controller, are triggering the interrupt for Status Change events. BIOSes are not properly initializing the USB controller to disable it from generating interrupts; instead, the BIOSes are relying on the PCI bus controller to mask this interrupt from being detected. The CardBus driver's interrupt service routine (ISR) handles the incoming interrupt, determines that the interrupt isn't coming from the CardBus controller, and immediately terminates to let another ISR process the interrupt. However, the driver for the device firing the interrupt hasn't been loaded by the operating system, so no ISR can properly handle the interrupt and clear the hardware firing the interrupt. Because the CardBus driver's ISR keeps getting the interrupt, but has no way to clear it, the machine stalls and operating system load never completes.
Did you find this white paper useful?
14 out of 22 users found this white paper useful
Related white papers
Fire on the Wire: The IEEE 1394 High Performance Serial Bus
The IEEE's Microcomputer Standards Committee commenced in 1986 a unification process for various serial bus implementations of the VME, Multibus II, and Future Bus standards. This effort resulted in the...
MPEG-4 Systems: Overview
This paper gives an overview of Part 1 of ISO/IEC 14496 (MPEG-4 Systems). It first presents the objectives of the MPEG-4 activity. In the MPEG-1 and MPEG-2 standards, "Systems" referred...
EIO vs. MIO: The Enhancements in Enhanced Input/Output Technology
Enhanced Input/Output (EIO) is the new general-purpose technology for Hewlett-Packard hard copy peripherals, replacing Modular I/O (MIO) present in earlier products. An I/O device provides a communication link between the...
Introduction to InfiniBand™
InfiniBand is a powerful new architecture designed to support I/O connectivity for the Internet infrastructure. InfiniBand is supported by all the major OEM server vendors as a means to expand beyond...
Touch Panel Technology Discussion
Touch screen applications are developing into a major display market niche as they ramp up their utilization of Liquid Crystal Display (LCD) flat panels into their designs. Touch technologies allow...
Network Resources Back to the Basics: LAN
Explains those critical LAN technologies in use today and in the future, including Ethernet, Fast Ethernet, Gigabit Ethernet, Token Ring and Fiber Distributed Data Interface (FDDI). It also includes information...
The Total Control® 1000 Multiservice Access Platform
This Web resource examines the market environment that has given rise to the need for powerful, high density platforms designed to support a wide array of new applications and services....
