How to kill a running process?

When I run `my_script.lua` on a pad, and there is a `while true do … end` sentence in the script, how can I kill this process?

In the real world, we use `ctrl+c` or `ctrl+d` but they are not working here.

If it is running on a turtle, I can dig the turtle to stop the program, but when it is running on a labeled pad, it seems I can do nothing about it…

Ctrl+t should work after a few seconds of holding the key combination. Otherwise you can place the pocket pc in an inventory and it will eventually turn off.

If Ctrl + T doesn't work, there's also Ctrl + S for shutdown and Ctrl + R for reboot, these should work everytime.

Also iirc putting a pocket computer in a disk drive turns it off.