A zombie (or defunct) process is one that has ended but for whatever reason the process information has not been removed from the process table. No code or data segments are allocated to the process anymore but the system has not removed it from the process list, so it appears to be still in the system (but isn't because it doesn't have any resources).
In the past the only way to get rid of zombie processes was to reboot the system to restore the system proc table. It is possible to try and get a parent process to execute a 'wait' system call to try and remove it - see related links.
Zombie : Child Process Exits before Parent process and Parent does not grab status of child process using wait() or waitpid() system call; Child process is in Zombie state. Orphan : Child process whose parent has been killed and inherited by init process.
See related links
A zombie process is a process that completed execution but still in process table. When a process ends, all of the memory and resources associated with it are deallocated so they can be used by other processes. However, the process's entry in the process table remains. The parent can read the child's exit status by executing the wait system call, at which stage the zombie is removed After the zombie is removed, its process ID and entry in the process table can then be reused. However, if a parent fails to call wait, the zombie will be left in the process table. In some situations this may be desirable, for example if the parent creates another child process it ensures that it will not be allocated the same process ID.
A zombie process is one that should have closed, but is still active in the process table. This is usually caused when a parent process that spawned the process has not yet realized that it has completed, or wants to create another process of the same name without using the same process ID.
A child process becomes a zombie when it completes its execution but its exit status has not been read by its parent process. The process remains in the process table as a zombie until the parent process reads its exit status using the wait() system call. Once the exit status is read, the zombie process is removed from the process table.
The cast of Slapeloos - 2012 includes: Morwenna Berendse as Nun Dylan Bliek as Child Sanne Bliek de Haas as Patient Mira Brands as Zombie Daniel Brink as Zombie Wilfred Bruins as Zombie Daniel Calis as Zombie Godfried Charite as Child Magdalena Charite as Child Celeste Charite as Child Joyce de Jong as Nun Sophie Donniner as Child Bente Donniner as Madeleine (child) Nash Gorter as Child Nathalie Gorter as Zombie Tjitske Gratama as Zombie Leonoor Luik as Child Perry Mulder as Dr. Mulder Martina Parhan as Nun Annemieke Pels as Zombie Anna Rijff as Zombie Hans Rijsdijk as Zombie Jessica Sanne Roodenrijs as Zombie Roy Smits as Transvestite Raymond van der Burg as Soldier Arjen van der Lely as Frank Gijs van Gelderen as Zombie Lotte van Veldhuizen as Child Ed van Wageningen as Zombie Soldier Carmen Visser as Child Victor Visser as Zombie Robert Visser as Zombie Meike Vissers as Child Mette Vissers as Child Tibbe Westerbeek as Child Melvin Westerbeek as Zombie Victor Willems Ettori as Zombie
zombie processes are inherited by the 'init' process (PID 1)
at the palace in mexico but hes a zombie too.
It is considered to be in a "zombie" state and will stay in the system until it is rebooted. These processes may not be killed by any signal either.
A zombie process is a process that has finished running, but is still there.
in the graveyard
Zombie programs, often referred to as "zombie processes," are computer processes that have completed execution but still have an entry in the system's process table. This occurs when the parent process has not yet read the exit status of the terminated child process. As a result, these processes consume system resources and can lead to performance issues if not managed properly. They typically remain in this state until the parent process cleans them up, making them essentially "dead" but still occupying system space.