Htop signals seem not to be sent on (K)Ubuntu 18.04
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I am on Ubuntu 18.04 (Kubuntu), running through Konsole.
I have a node process I can see in htop if I F4 and search for node. I highlight it and use F9 to send it a signal (tried SIGINT, SIGQUIT, SIGTERM, SIGKILL), but nothing causes it to exit.
This is not specific to node, as I can't SIGKILL other things (for example the Kate text editor).
If I exit htop and simply type kill -SIGINT 6015 (PID taken from htop), the process exits properly.
Why is this not working?
I am guessing it has something to do with how the desktop version works, because on servers I have never had the issue of htop being unable to signal processes.
Another thing that goes contrary to my expectations is if I run sudo htop I can only see about 4 processes under my user (3 related to kde and one (sd-pam)) whereas running it as myself shows me 100+ (including node and all the other apps I have going). I would expect that running as root I would see all processes for all users.
kubuntu htop konsole
asked Jan 30 at 18:08
AlexAlex
83
add a comment |
I am on Ubuntu 18.04 (Kubuntu), running through Konsole.
I have a node process I can see in htop if I F4 and search for node. I highlight it and use F9 to send it a signal (tried SIGINT, SIGQUIT, SIGTERM, SIGKILL), but nothing causes it to exit.
This is not specific to node, as I can't SIGKILL other things (for example the Kate text editor).
If I exit htop and simply type kill -SIGINT 6015 (PID taken from htop), the process exits properly.
Why is this not working?
I am guessing it has something to do with how the desktop version works, because on servers I have never had the issue of htop being unable to signal processes.
Another thing that goes contrary to my expectations is if I run sudo htop I can only see about 4 processes under my user (3 related to kde and one (sd-pam)) whereas running it as myself shows me 100+ (including node and all the other apps I have going). I would expect that running as root I would see all processes for all users.
kubuntu htop konsole
asked Jan 30 at 18:08
AlexAlex
83
add a comment |
I am on Ubuntu 18.04 (Kubuntu), running through Konsole.
I have a node process I can see in htop if I F4 and search for node. I highlight it and use F9 to send it a signal (tried SIGINT, SIGQUIT, SIGTERM, SIGKILL), but nothing causes it to exit.
This is not specific to node, as I can't SIGKILL other things (for example the Kate text editor).
If I exit htop and simply type kill -SIGINT 6015 (PID taken from htop), the process exits properly.
Why is this not working?
I am guessing it has something to do with how the desktop version works, because on servers I have never had the issue of htop being unable to signal processes.
Another thing that goes contrary to my expectations is if I run sudo htop I can only see about 4 processes under my user (3 related to kde and one (sd-pam)) whereas running it as myself shows me 100+ (including node and all the other apps I have going). I would expect that running as root I would see all processes for all users.
kubuntu htop konsole
asked Jan 30 at 18:08
AlexAlex
83
I am on Ubuntu 18.04 (Kubuntu), running through Konsole.
I have a node process I can see in htop if I F4 and search for node. I highlight it and use F9 to send it a signal (tried SIGINT, SIGQUIT, SIGTERM, SIGKILL), but nothing causes it to exit.
This is not specific to node, as I can't SIGKILL other things (for example the Kate text editor).
If I exit htop and simply type kill -SIGINT 6015 (PID taken from htop), the process exits properly.
Why is this not working?
I am guessing it has something to do with how the desktop version works, because on servers I have never had the issue of htop being unable to signal processes.
Another thing that goes contrary to my expectations is if I run sudo htop I can only see about 4 processes under my user (3 related to kde and one (sd-pam)) whereas running it as myself shows me 100+ (including node and all the other apps I have going). I would expect that running as root I would see all processes for all users.
kubuntu htop konsole
kubuntu htop konsole
asked Jan 30 at 18:08
AlexAlex
83
asked Jan 30 at 18:08
AlexAlex
83
asked Jan 30 at 18:08
AlexAlex
83
asked Jan 30 at 18:08
AlexAlex
83
asked Jan 30 at 18:08
AlexAlex
83
83
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
I have good news, and bad news.
Kill works for htop installed with sudo apt install htop.
Kill doesn't works for htop installed with sudo snap install htop.
I believe snap's sandbox is blocking the signal.
Also, the htop from snap list fewer processes than the htop from apt.
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
1
Thank you, Marcos! I was not aware of snap sandboxing applications installed through it. Removing htop via snap and installing via apt solved my issue. I am now able to send signals and see all the processes I expected to see.
– Alex
Feb 4 at 16:14
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I have good news, and bad news.
Kill works for htop installed with sudo apt install htop.
Kill doesn't works for htop installed with sudo snap install htop.
I believe snap's sandbox is blocking the signal.
Also, the htop from snap list fewer processes than the htop from apt.
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
1
Thank you, Marcos! I was not aware of snap sandboxing applications installed through it. Removing htop via snap and installing via apt solved my issue. I am now able to send signals and see all the processes I expected to see.
– Alex
Feb 4 at 16:14
add a comment |
I have good news, and bad news.
Kill works for htop installed with sudo apt install htop.
Kill doesn't works for htop installed with sudo snap install htop.
I believe snap's sandbox is blocking the signal.
Also, the htop from snap list fewer processes than the htop from apt.
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
1
Thank you, Marcos! I was not aware of snap sandboxing applications installed through it. Removing htop via snap and installing via apt solved my issue. I am now able to send signals and see all the processes I expected to see.
– Alex
Feb 4 at 16:14
add a comment |
I have good news, and bad news.
Kill works for htop installed with sudo apt install htop.
Kill doesn't works for htop installed with sudo snap install htop.
I believe snap's sandbox is blocking the signal.
Also, the htop from snap list fewer processes than the htop from apt.
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
I have good news, and bad news.
Kill works for htop installed with sudo apt install htop.
Kill doesn't works for htop installed with sudo snap install htop.
I believe snap's sandbox is blocking the signal.
Also, the htop from snap list fewer processes than the htop from apt.
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
answered Feb 1 at 20:15
Marcos ZolnowskiMarcos Zolnowski
1162
1162
1
Thank you, Marcos! I was not aware of snap sandboxing applications installed through it. Removing htop via snap and installing via apt solved my issue. I am now able to send signals and see all the processes I expected to see.
– Alex
Feb 4 at 16:14
add a comment |
1
Thank you, Marcos! I was not aware of snap sandboxing applications installed through it. Removing htop via snap and installing via apt solved my issue. I am now able to send signals and see all the processes I expected to see.
– Alex
Feb 4 at 16:14
1
1
Thank you, Marcos! I was not aware of snap sandboxing applications installed through it. Removing htop via snap and installing via apt solved my issue. I am now able to send signals and see all the processes I expected to see.
– Alex
Feb 4 at 16:14
Thank you, Marcos! I was not aware of snap sandboxing applications installed through it. Removing htop via snap and installing via apt solved my issue. I am now able to send signals and see all the processes I expected to see.
– Alex
Feb 4 at 16:14
add a comment |
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