How to remove or deactivate zombies?

Question

Zombies seem to be dead but active parts of apps or programs .. but it seems that only parent program can clean up .. if so .. why? .. and is there any other method?
Killing parent is a method but ..
Sometimes parent program is an essential part of system such that without that the system shuts down or restarts

Answer 1

https://www.geeksforgeeks.org/zombie-and-orphan-processes-in-c/
https://stackoverflow.com/questions/16944886/how-to-kill-zombie-process
https://askubuntu.com/questions/30891/is-there-any-way-to-kill-a-zombie-process-without-reboot
http://how-to.wikia.com/wiki/How_to_display_and_kill_zombie_processes

Answer 2

Here i want to tank for answer or answers .. next i am going to study links provided by you
Regards

Answer 3

In fiction video movies zombies are shown as dangerous creatures .. are they the same in software environment? and why?
If they are childs previously working ok so they should not be harmful unless we mean that: being uncontrolled and independent and orphan is dangerous by itself!

Answer 4

What i mean is that if a program is not and is not designed to be a Virus or Worm or Trojan then it can not be harmful
What if your self-made programs are not welcomed enough by the system .. like being ignored! then this program tries to penetrate into system and change some values .. then the affected program might be considered as zombie while it is not only harmless ..but even useful
Sorry for taking your time but let me explain more:
I use Linux in my PC
I usually use one of the display managers named: kdm or xdm
It seems that kdm is more rigid because whenever i use that i do not see any zombie while in case of using xdm usually up to 4 zombies appear .. in some cases the smplayer which is a media player is converted to zombie as shown in system activity table!
At first i was too afraid about zombies but as my understandings developed i am not an more worried
My self-created programs were categorized as x-executable .. i think this is why they can be more active in xdm environment
I have not seen any harm or damage having zombies .. no loss of data or change in any of my own files observed
Now i am using kdm because still i am not sure .. this is why i asked these questions about zombies

Answer 5

In my first paragraph i meant :
My self-created programs do not contain harmful codes or functions .. unless the operating
system is designed to disobey the administrator or root and follow parental site rules!
And .. yes i still do not understand the meaning of zombie!
I tried to use insmod command to insert my programs into kernel .. but none of them were supported!
I think my programs penetrated in an script way! .. slowly and gradually ..
In a section of time in the past .. whenever i clicked on an option to open desktop wallpaper image i got a messagesomething like this :
kdeinit can not open myscript .. !
while the wallpaper was a png image!!
I cases i had seen some unknown processes in system activity table appearing for a short time and belonging to root and -1
These processes usually after a short time disappeared while changing their ID .. system could not control them!
I have posted questions in site : www.linuxquestions.org my id is: irajjs there .. maybe i can copy and past the related link ..

Answer 6

https://www.linuxquestions.org/questions/search.php?searchid=9108888

Answer 7

First:
I have reinstalled my OS several times! I have done that even 3 times in a week! .. this is how i learn to do things!!
About rules:
I prefer to work as root! This way the system can not play with me!!
Off course my last display manager is kdm which does not support root login .. just because i was concerned about zombies!
Although i have managed in system settings to be able to do many things without root permission!
Something else:
I have created my init!
I have created my kernel too!
I have created system conf script
I am trying to capture and change the whole system .. although it is really very difficult .. but it is my goal to create my own OS!
A lot progress made but still a lot more is needed .. comparing with normal systems my system is much more ..
You can look at my related posts in instagram .. if you like to!
Thank you again for your time and attention and help
Regards