Microsoft KB Archive/323937

= Windows 2000 Stops Responding After a Surprise Removal of a USB OHCI Controller =

Article ID: 323937

Article Last Modified on 2/1/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2

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This article was previously published under Q323937



SYMPTOMS
When you hot unplug an OHCI USB controller to which one or more USB-based devices are connected, you may receive an error message on a blue screen, and your computer may stop responding (hang).



CAUSE
This problem may occur when the Openhci.sys host controller driver tries to use invalid memory locations in its surprise remove (IRP_MN_SURPRISE_REMOVE) code path.



RESOLUTION
To work around this problem, eject the controller by using the Hotplug tool on the taskbar. Note that if you hot plug-in the controller device again, it may not be redetected by the system. If this occurs, restart your computer.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

This problem was corrected in Microsoft Windows XP.

Additional query words: kmode_exception_not_handled (0x1e) crash

Keywords: kbenv kberrmsg kbprb kbusb KB323937

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