systemd is the most notable process manager that has cgroups support, and the article is talking about process managers that "fail".
It doesn't matter if it's not the PID 1 that fails. The article is saying: if the process that is supposed to receive OOM notification and kill the process fails, you will observe symptoms that are very hard to diagnose.
PID 1 dying is of course really bad, but if other processes in the init system die, your system can still be hosed, as pointed out here.
It doesn't matter if it's not the PID 1 that fails. The article is saying: if the process that is supposed to receive OOM notification and kill the process fails, you will observe symptoms that are very hard to diagnose.
PID 1 dying is of course really bad, but if other processes in the init system die, your system can still be hosed, as pointed out here.