When I start a program that runs for a bit, say
make, I could just type the next command in bash even before I got a prompt back and when the
first command finished, the second one was executed as if I had typed it later.
But suddenly this doesn't work any more. The additional command will be shown at the prompt after the first one finished but is not executed. If I type more commands, they are all shown at the prompt (without any space or newline between them).
Any idea what is at fault here or how I can figure it out myself?