From owner-freebsd-hackers@FreeBSD.ORG  Thu Jul 27 10:57:12 2006
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From: "Intron" <mag@intron.ac>
To: freebsd-hackers@freebsd.org
Date: Thu, 27 Jul 2006 18:56:05 +0800
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Subject: How to Use ddb(4)?
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I have add relevant options into my kernel (7.0-CURRENT) configuration
file:

makeoptions	DEBUG=-g
options 	KDB
options 	DDB
options 	GDB
options 	INVARIANTS
options 	INVARIANT_SUPPORT
options 	WITNESS
options 	WITNESS_SKIPSPIN

When kernel panics, the prompt "db>" will appear. But at this time
I cannot control my computer with keyboard any longer. What's wrong
with me?

In my mind, both 7.0-CURRENT and 6.x-STABLE halt a year ago are
all right in ddb(4).

By the way, the loader(8) option "-a" (to let user decide which file
system is taken as root file system) is also unusable.

------------------------------------------------------------------------
                                                 From Beijing, China