Smithology

Ignore this if you aren’t a programmer working on embedded linux.

If you are doing anything special on the serial port that was/is being used by busybox as the controlling terminal at boot time, then be aware that init/init.c in busybox has function called set_sane_term() which might not be sane for your particular use of the serial port later on. The function is called if you have any processes that are set to respawn in inittab and when one of those processes dies. In our case we run a serial handler process that directs serial traffic to a shell on a pty but if init has to respawn any processes, it will cause weirdness with things like your ctrl-c (like telling the serial port to process control characters instead of the pty).

[tags]boring programmer crap, tty, linux, busybox, init, ctrl-c, termios, pty[/tags]