System hangs

[Manoj Ekbote]

Hello,

I have applied a kdb patch v.1.5  to 2.2.18 source. My .config file
reads

CONFIG_KDB=y
CONFIG_KDB_OFF=y
CONFIG_KALLSYMS=y
CONFIG_FRAME_POINTER=y

I turn on kdb by passing "kdb=on" to the kernel image.
Now, when I press the "Pause" key, the system hangs. At the same time,
the Caps lock and Scroll lock lights start to blink, which means to say
that kdb is _active_( from the documentation of kdb).

Why is the kdb not being invoked?

TIA,
manoj