kill -9 command not working

Question

I am new to Ubuntu. I am using it for radius manager. When I typed

ps ax | grep rm

I got:

50 ?        S<     0:00 [acpi_thermal_pm]
1153 ?        Ssl    0:00 /usr/local/bin/rmconntrack
1171 ?        Ssl    0:00 /usr/local/bin/rmpoller
1424 pts/0    S+     0:00 grep --color=auto rm

When I try to kill -9 50 it does not work. I typed:

kill -9 50

Still:

50 ?        S<     0:00 [acpi_thermal_pm]
1153 ?        Ssl    0:00 /usr/local/bin/rmconntrack
1171 ?        Ssl    0:00 /usr/local/bin/rmpoller
1424 pts/0    S+     0:00 grep --color=auto rm

It's the same; nothing killed. Can any one please help me?

I don't believe you can explicity kill something mnaged by the kernel [acpi_thermal_pm] is the kernel driver for power management. As stated below, you can do that, but the kernel may just restart it — eyoung100, Jun 13 '16 at 21:29
In order to remove power management, you have two options, but first, add the output of lsmod | grep thermal — eyoung100, Jun 13 '16 at 21:37
No paste the output by editing your question, I also need lsmod | grep acpi — eyoung100, Jun 13 '16 at 21:47
@Daniel is correct, but I was making you add more information before I answered — eyoung100, Jun 13 '16 at 21:49

score 0 · Answer 1 · edited Jun 13 '16 at 22:09

0

You might need to be root to kill the process. In that case add sudo in front of the command:

sudo kill -9 50

edited Jun 13 '16 at 22:09

muru

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answered Jun 13 '16 at 21:31

Vuurdraak

1

i was used it and i am root user – ALI BADWI Jun 13 '16 at 21:33
then I guess it's like eyoung100 said, it's a kernel procces that can not be killed. – Vuurdraak Jun 13 '16 at 21:35

score 0 · Accepted Answer · edited Jun 13 '16 at 22:09

0

You can't kill Kernel Threads with userspace kill.

If you really want to get rid of this process, you can either remove the the thermal kernel module with rmmod thermal, or build a new kernel without it (if its builtin, not a module). But you shouldn't do it unless you have a very good reason for it.

edited Jun 13 '16 at 22:09

muru

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answered Jun 13 '16 at 21:47

Daniel

558

i was installed radius manger and i want run up it after i typed radiusd -X Failed binding to authentication address * port 1812: Address already in use /usr/local/etc/raddb/radiusd.conf[240]: Error binding to port for 0.0.0.0 port 1 i want to kill that 50 to run it up – ALI BADWI Jun 13 '16 at 21:54
That process has no relation at all with radiusd. The bind error means that another process is using the same udp/tcp port, probably another radiusd instance is still running. – Daniel Jun 13 '16 at 21:57
thanks so much Daniel i am trying to look what the reasons for this problem . – ALI BADWI Jun 13 '16 at 22:04
you are right . its working now thanks so much – ALI BADWI Jun 13 '16 at 22:09

kill -9 command not working

2 Answers2