Cannot set niceness: Permission denied


(Johann) #1

Hello,

From inside a CT:

nice -n -10 ls

nice: cannot set niceness: Permission denied

Is there any way to be able to set a high (< 0) nice priority to a process from inside the CT ?


(St├ęphane Graber) #2

Not inside an unprivileged container, no, otherwise it'd allow for containers to effectively DoS the host and all other containers.

It's a kernel protection measure put in place for all unprivileged users.