zombie process can't be killed

Question

Is there a way to kill a zombie process? I\'ve tried calling exit to kill the process and even sending SIGINT signal to the process, but it seems t

Answer 1

Zombie processes are already dead, so they cannot be killed, they can only be reaped, which has to be done by their parent process via wait*(). This is usually called the child reaper idiom, in the signal handler for SIGCHLD:

while (wait*(... WNOHANG ...)) {
    ...
}