Currently you invoke kdb on a serial console by ctrl-A. This causes problems for people using emacs bindings in bash, ctrl-A is start of line. It is very annoying when typing on the serial console to suddenly drop into kdb without intending to.
In the next major release of kdb, the serial console sequence will change to <escape>KDB, in upper case. You can revert to ctrl-A by changing kdb_serial_str in drivers/char/serial.c. Complain now if this will cause any major problems.
