How to Identify and Eliminate Zombie Processes on Linux – Guide

Before you learn about the Zombie process, let me remind you of what a process is in Linux. A process is a running instance of a program that is now in use. It could be cutting edge (interactive process) or background (batch process) (non-interactive or automatic process). It can be a parent process (one that creates additional processes during runtime) or a child process (one that is produced by others). ..

Linux processes are created by the system’s init process. All other processes on Linux have a parent, which is the init process itself. Child processes are created by processes.

If your system has limited RAM or if there are too many zombie processes eating up RAM, it might be difficult to run programs. This is especially true if the programs have maximum PIDs, which can be up to 32768. If there are no other productive tasks available, your system might crash.

How to find zombie processes

  1. In the “initial” state, the process is running as a normal user.
  2. In the “suspended” state, the process is in a suspended state and cannot be resumed until it is restarted as a normal user.
  3. In the “terminated” state, the process has been terminated by either an administrator or by a system crash.

A lack of sleep can lead to a number of health problems, including obesity, diabetes, and heart disease.

A stopped by work control signal means that the machine is no longer able to operate.

Debugger stopped the program execution when it detected a problem. ..

An easy way to see the processes and their status is to use the terminal and the top command.

There are a few ways to do this, but the most common is to use a firearm. ..

How to find and kill a zombie process

Zombie processes are already dead. How do you kill an already dead process? ..

In this zombie movie, you can’t shoot zombies in the head or burn them. You can only kill their processes.

Some people suggest sending SIGCHLD signal to the parent process. But it is more likely to be ignored. The other option to kill the zombie process is to kill its parent process. This sounds brutal, but this is the only safe way to kill zombie processes.

ps -ef | grep zombie

  1. zombie1
  2. zombie2
  3. zombie3
  4. zombie4
  5. zombie5

This code prints the text “Z+” if the string is positive, and “0” if it is negative.

The eighth column in the ps ux command output displays the state of a process. You are asking to print all matching lines where the state of a process is either Z+ (indicating the zombie state) or W (indicating the working state). ..

To identify the parent process ID, you need to know the process ID of the process that created the child process. ..

Process ID (PID) is the unique number assigned to each process in a computer system. ..

zombie -p PIDof Zombie’s parent process zombie -p PIDof Zombie

Processes: -A Process ID (PID) -O Set of parent processes IDs (PPIDs) -S Set of session IDs (SIDs) ..

Kill the parent process by typing the command line with its respective process ID obtained before.

How to Identify and Eliminate Zombie Processes on Linux In order to identify and eliminate zombie processes on Linux, use the ps command or the top command.

Final note

This guide is for anyone who wants to identify and eliminate zombie processes on Linux. If you have any questions about this article, please don’t hesitate to ask us. Additionally, please share this guide with your friends so that they can benefit from it as well.