how to jump into ddb console from a serial terminal ?

[Thierry Deval <TDeval@PrimeOBJ.COM>]

Hello,

I've hooked up my OpenBSD ~current server to a serial connection to be 
able to remotely see the boot sequence, and to have an other way to get 
on it in case the network fails (it's not stable anymore, too old)

However, related to the 'db3 access hangs OpenBSD 2.9' thread, I'd like 
to be able to invoke the ddb console from my serial connection. That 
would really be easier for taking the trace (yeah, I'm lazy)

Is there a way to emulate the Ctrl-Alt-Esc sequence on the serial 
console, or maybe we can change the trap sequence somewhere to render it 
compatible with a serial communication ?

Thanks,

   Thierry