How to enter the kdb kernel debuger prompt on Altix3000?

From: Gracjan Jankowski (gracjan_at_man.poznan.pl)
Date: 11/21/03 

Date: Fri, 21 Nov 2003 16:15:49 +0100

Hello,

I work on SGI ProPack v.2.2 for Linux on IA64 on Altix3000 platform.
The system is equiped with the kdb as a kernel level debuger.
The kdb manual says that I should use Control-A key to enter the
debuger,
but it does not work.

Obviously I do it from the serial console. Upon system panic
the kdb is entered automaticaly, so it seems to be installed properly.
Additionaly the Control-T key work correctly and allow entering the L1
controller.

Pleace tell me how can I enter the kdb prompt from my serial console.

Thanks,
gracjan