Problem with the pause

[Bijoy Kumar K.M.]

Hello
        I have installed the kdb on my system withe kernel 2.4.5 and can
get into the kdb mode if the kdb=early flag is given at boot time. But if
I boot my system normally and hit the pause key at any later stage I get a
kernel panic. The messages are somewhat like this
        
                In interrupt handler, not syncing.
                Not executing a kdb command
                No longjump available for recovery.
                Allowing the event to happen
And the system hangs.

Can you please tell me why it is so?

Thanks !

Bijoy