ronnih
Posts: 32
Joined: Wed Nov 29, 2017 8:59 am
Location: Matrix Network
Contact: Website

Raspbian 10 Buster with zombie

Wed Aug 07, 2019 6:23 pm

Hello,

in my new installation with Raspbian 10 Buster is a zombie process after restart.

Code: Select all

tux@iglu:~ $ ps aux|grep defunc
tux    888  0.0  0.0      0     0 ?        Z    17:54   0:00 [sh] <defunct>
And here the same with top

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tux@iglu:~ $ top -p 888

top - 20:15:11 up  2:21,  1 user,  load average: 0,59, 0,55, 0,57
Tasks:   1 total,   0 running,   0 sleeping,   0 stopped,   1 zombie
%Cpu(s): 15,1 us,  2,7 sy,  0,0 ni, 82,0 id,  0,2 wa,  0,0 hi,  0,0 si,  0,0 st
MiB Mem :    874,5 total,    204,8 free,    415,4 used,    254,3 buff/cache
MiB Swap:    100,0 total,     26,2 free,     73,8 used.    354,0 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                    
  888 tux   20   0       0      0      0 Z   0,0   0,0   0:00.00 [sh] <defunct>                                             
I can not kill this zombie. Had only create a new user with the name tux and installed some software with

apt install kodi clipit pidgin wesnoth flare

But I think that is not the reason.. Can anybody explain why there is a zombie after start and with a nearly fresh installation?

Thx and Regard
Ronnih
https://techguru.lima-city.de

epoch1970
Posts: 5735
Joined: Thu May 05, 2016 9:33 am
Location: Paris, France

Re: Raspbian 10 Buster with zombie

Wed Aug 07, 2019 7:05 pm

A zombie is a dead process, it doesn’t run anymore. So it is not a big issue per se.
The process that launched it has not acknowledged its end, so it lingers on in the process list.
This is related to the packages you installed, something is not right in the way they activate.
"S'il n'y a pas de solution, c'est qu'il n'y a pas de problème." Les Shadoks, J. Rouxel

hippy
Posts: 8582
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Raspbian 10 Buster with zombie

Wed Aug 07, 2019 7:55 pm

Interestingly the same for me after a reboot, though "pi" not "tux" ...

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pi@Pi3B:~ $ ps aux|grep defunc
pi         902  0.0  0.0      0     0 ?        Z    20:50   0:00 [sh] <defunct>
Just FYI because I'm not really fussed.

ronnih
Posts: 32
Joined: Wed Nov 29, 2017 8:59 am
Location: Matrix Network
Contact: Website

Re: Raspbian 10 Buster with zombie

Wed Aug 07, 2019 8:13 pm

@epoch1970
thx you for explanation.
If the Zombie steal no performance from my Raspberry it is okay for me 8-)

@hippy
have you also Raspbian Buster?

Code: Select all

cat /etc/os-release
and fresh installation?
https://techguru.lima-city.de

hippy
Posts: 8582
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Raspbian 10 Buster with zombie

Wed Aug 07, 2019 8:26 pm

ronnih wrote:
Wed Aug 07, 2019 8:13 pm
@hippy
have you also Raspbian Buster?
Yes, Buster, but not an entirely fresh install. I am intrigued as to where the zombie originates from but not really concerned as it's not doing or consuming anything.

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