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How to kill a zombie process

When you have a zombie process that does not respond to kill -9, then we can try a few more options.

Option 1: sending a signal to the parent process

Use the kill command and send the SIGCHLD signal. This might trigger the required wait() function and return things in a normal state. kill -SIGCHLD PID-OF-PARENT-PROCESS

Option 2: kill the parent process

If the first option does not work, then try stopping the parent process. Sometimes this might properly close the child process as well.

Option 3: reboot

Both options not working? Then a reboot will, as this will stop everything and start the system with a fresh process table.

Learn more about kill

This article uses the kill command to achieve its tasks. Want to learn how to use it or additional options that may be available?

» Mastering the tool

Installation and usage of kill

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