How to Use ddb(4)?

maksim yevmenkin maksim.yevmenkin at
Thu Jul 27 14:37:27 UTC 2006

Dag-Erling Smørgrav wrote:
> "Intron" <mag at> writes:
>> Dag-Erling  [iso-8859-1] Smo/rgrav wrote:
>>> "Intron" <mag at> writes:
>>>> 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?
>>> I don't know what's wrong with you, but as regards your computer:
>>> disable kbdmux and use a PS/2 keyboard.
>> I've been comforted by you that there's nothing wrong with me.
> Glad to help :)
>> Well, FreeBSD Developers' Handbook needs to be updated now.
> No, kbdmux needs to be fixed so it works in DDB.

actually, atkbd(4) needs to be fixed to support "polled" mode :) 
however, this kbdmux(4) hack will, hopefully, make it work for everyone.


More information about the freebsd-hackers mailing list