kgdb on 2.4.21 on Ebony

Has anyone used kgdb on a 2.4.21 kernel on 44x hardware? I am attempting 
to do this, but am running into problems with kgdb serial port setup. The 
gdb stub is not being transmitted correctly to the development machine. I 
would greatly appreciate it if someone who has done this before could 
point me to some documentation or explain their setup to me. Any pointers 
would be appreciated.

Thanks,

Prosun Niyogi
pniyogi@us.ibm.com