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Questions tagged [zombie]

A zombie process is a dead process that has no resources allocated to it, but merely has an entry in the process tree until its parent process finally reaps it and it disappears from view.

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Large number of zombie processes on Ubuntu Server 14.04

I'm using an Ubuntu 14.04 server and a few times in the last few days, MySQL has become unresponsive and I had to reboot remotely. I've been away until now so not able to have a proper look, but today ...
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377 views

Suspend/resume works exactly once

Problem: Suspend/Resume works exactly once. Attempting to suspend a second time results in the machine hanging. The monitor powers down to standby as it should, but the system unit fan is still ...
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Zombie process actually slowing system down ~100 fold

I was using vlc and started up another vlc which did not actually start. System became slow. I checked top and noticed that vlc had become a zombie. top was showing vlc to be 99-101% cpu which was ...
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How can I show only zombie processes in htop?

I would like to monitor in real time zombie process in htop?
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2 votes
1 answer
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How to find cause of zombie process?

I have a zombie process that I am trying to investigate. When a process dies on Linux, it isn’t all removed from memory immediately — its process descriptor stays in memory (the process descriptor ...
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3 votes
1 answer
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Zombie process: sd_cicero, Ubuntu 16.04

When I followed the instructions in this question to find zombie processes, I found this process Z Jan02 0:00 [sd_cicero] <defunct>. When I try to find its parent process, I get this: ...
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Ubuntu automatically clean zombie and sleeping process

Is there a way how I can cleanup zombie process automatically? How can I clean up the zombie and sleeping process automatically?
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How to kill zombie process keeping its parent alive? [duplicate]

I am doing printing in .net core framework. For printing every label, I start a process. So for 100 labels, it creates 100 zombie process. The zombie process gets removed from the process table, ...
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3 votes
1 answer
7k views

Bash Script to find zombie processes?

So recently I've noticed that I have a process that will randomly crash and become a zombie with a PPID of 1 (init). I've been told that the only way to fix this is to reboot the PC (or send SIGCHLD ...
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4 votes
1 answer
6k views

Zombie process (kill both child and parent process)

Question: I want to make sure that both child and parent process are killed and echo if successful or not. I'm new on using bash script and having issue with my output. #!/bin/bash for p in $(ps ...
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1 answer
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13 times 'zenity' with status Zombie

I have 13 times zenity with status Zombie in my system-monitor. Could there be any virus or what else could it be? I have read this: What are zombie processes? but I can't do anything with it ...
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Zombie being made from 'tail -f' cron job that grep's and launches shell script

I realize that a single zombie process like this is nothing to worry about, I just want a more professional outcome (no zombie) from my code. My cron job calling a shell script produces a single ...
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How do I kill a 5GB init-child zombie process? [duplicate]

I'm trying not to restart every time I'm done with my game. I've reported this issue to the DNS community a 2nd time now since I havn't played it for a while since the first time and it's still not ...
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Do zombie processes cause memory shortage? Do they get killed by the init process eventually?

I have a zombie process problem. I read What is a <defunct> process, and why doesn't it get killed? which says There is no harm in letting such processes be unless there are many of them. ...
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1 answer
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How to make one process to zombie

The question is the title, With one example please show how to make one of the process zombie between all process ?
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`apt-get upgrade` stalls with zombie `dpkg` - what to do?

During an apt-get upgrade on a server, output stalled and in investigation I found a zombie dpkg process, but the apt-get process still alive. What is the best way to handle this? The dpkg log shows ...
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Why are zombie processes being created upon boot? [duplicate]

Ubuntu 13.04. Recently zombies have started appearing. My processes are: PROCESS CPU INFORMATION chrome 65% Surf the web calculator 10% Calculate ...
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defunct processes and their parent processes

I came across this SO post: https://stackoverflow.com/questions/356722/killing-a-defunct-process-on-unix-system "You have killed the process, but a dead process doesn't disappear from the process ...
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1 vote
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How to find a zombie process after reboot?

I take a lot of time trying to connect to a Ubuntu Server, but when I finally did that I got this message: => There is 1 zombie process. I reboot it immediately but now I don't know how to find a ...
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285 votes
6 answers
550k views

What is a <defunct> process, and why doesn't it get killed?

The chrome browser was not responsive and I tried to kill it, but instead of disappearing the process had <defunct> at its right, and didn't get killed: What is <defunct> for a process ...
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2 votes
1 answer
813 views

Literally 50 SH Zombie processes is system monitor

This bothers me now for a while: I have a huge list of Zombie processes whenever my system runs for a while as you can see in my gnome-system monitor. The list is so long that it is hard to find even ...
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147 votes
8 answers
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How to find zombie process?

System information as of Fri Mar 9 19:40:01 KST 2012 System load: 0.59 Processes: 167 Usage of /home: 23.0% of 11.00GB Users logged in: 1 Swap usage: 0% ...
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5 votes
2 answers
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How to get rid of Transmission zombie process? [closed]

Problem: I was downloading a file over Transmission when I noticed that the Transmission window was grayed out and not responding. On clicking it, Ubuntu (10.04) asked to force-close which I did. What ...
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155 votes
4 answers
188k views

What are zombie processes?

With commands like top and the gui based System Monitor I can see that at the moment I have several zombie processes. What are zombie processes? Do they affect the performance of the system or the ...
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4 votes
1 answer
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Bootchart zombie process udevadm

Every time I look at the logs from bootchart, I notice a process called udevadm that is mostly coloured as if it is a zombie process. It is accompanied by modprobe, wait-for-root and udevd. They ...
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51 votes
5 answers
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Is there any way to kill a zombie process without reboot?

Is there any way to kill a zombie process without reboot? Here is how it happened: I want to download a 12GB file using torrent. After adding the .torrent file, transmission turned into a zombie ...
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