From owner-freebsd-ppc@FreeBSD.ORG  Fri Dec  2 07:07:26 2005
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Date: Thu, 01 Dec 2005 23:01:16 -0800
From: Arun Sharma <arun@sharma-home.net>
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Subject: ddb and usb keyboards
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I noticed that I was able to interact with DDB using my usb keyboard 
when the kernel panics due to a driver bug.

However, if I try to manually enter DDB using ctrl+alt+esc on the 
console, DDB doesn't accept any input and I have to power cycle the machine.

Is there a good explanation for this behavior?

	-Arun