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From: Volker <volker@vwsoft.com>
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To: Roman Divacky <rdivacky@freebsd.org>
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Cc: current@freebsd.org
Subject: Re: cant break into ddb
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On 12/23/-58 19:59, Roman Divacky wrote:
> hi
> 
> I just tried to break into ddb and it does not work. it seems
> like "something" happened when I pressed the magic buttons
> but nothing shows on the console nor it seems to respond
> to keyboard commands.
> 
> the relevant part of my config if that matters:
> 
> options         KDB
> options         DDB                     #Enable the kernel debugger
> options         DDB_CTF
> 
> 
> strange thing is that when I presed reset (the hw button) it did
> not reset itself, it did something but the lcd stayed off and
> it did not react to anything, I had to physically plug the pc
> off the power grid.
> 
> can someone confirm that manually breaking into ddb works in -current?
> 
> roman
> 

Roman,

using a week old -current (sources as of 2008-12-13), it works at the
syscons console (ctrl+alt+esc). Haven't tested using 1394 or serial.

Interestingly I was at console session #2, pressed ctrl+alt+esc but I
needed to switch to session #1 to actually see the debugger prompt.
Input goes to the debugger even while not seeing it's prompt.

That reminds me of the old debugger problem when using X and
experiencing a kernel panic.

Volker