user@user-pc:~$ sudo service earlyoom status && sudo service nohang status && sudo service oomd status ● earlyoom.service - Early OOM Daemon Loaded: loaded (/lib/systemd/system/earlyoom.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2019-08-12 22:06:23 +09; 6min ago Docs: man:earlyoom(1) https://github.com/rfjakob/earlyoom Main PID: 590 (earlyoom) Tasks: 1 (limit: 2302) Memory: 916.0K CPU: 58ms CGroup: /system.slice/earlyoom.service └─590 /usr/bin/earlyoom -r 60 авг 12 22:06:24 user-pc earlyoom[590]: earlyoom v1.2 авг 12 22:06:24 user-pc earlyoom[590]: mem total: 1990 MiB, sending SIGTERM at 10 %, SIGKILL at 5 % авг 12 22:06:24 user-pc earlyoom[590]: swap total: 0 MiB, sending SIGTERM at 10 %, SIGKILL at 5 % авг 12 22:06:24 user-pc earlyoom[590]: mem avail: 1792 of 1990 MiB (90 %), swap free: 0 of 0 MiB ( 0 %) авг 12 22:07:24 user-pc earlyoom[590]: mem avail: 1503 of 1990 MiB (75 %), swap free: 0 of 0 MiB ( 0 %) авг 12 22:08:25 user-pc earlyoom[590]: mem avail: 1393 of 1990 MiB (69 %), swap free: 3981 of 3981 MiB (100 %) авг 12 22:09:25 user-pc earlyoom[590]: mem avail: 1392 of 1990 MiB (69 %), swap free: 3981 of 3981 MiB (100 %) авг 12 22:10:25 user-pc earlyoom[590]: mem avail: 1393 of 1990 MiB (69 %), swap free: 3981 of 3981 MiB (100 %) авг 12 22:11:25 user-pc earlyoom[590]: mem avail: 1393 of 1990 MiB (69 %), swap free: 3981 of 3981 MiB (100 %) авг 12 22:12:26 user-pc earlyoom[590]: mem avail: 1393 of 1990 MiB (69 %), swap free: 3981 of 3981 MiB (100 %) ● nohang.service - Highly configurable OOM prevention daemon Loaded: loaded (/etc/systemd/system/nohang.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2019-08-12 22:06:24 +09; 6min ago Docs: man:nohang(1) https://github.com/hakavlad/nohang Main PID: 619 (python3) Tasks: 1 (limit: 50) Memory: 7.8M (max: 100.0M) CPU: 259ms CGroup: /nohang.slice/nohang.service └─619 python3 /usr/local/bin/nohang --config /etc/nohang/nohang.conf авг 12 22:06:24 user-pc systemd[1]: Started Highly configurable OOM prevention daemon. авг 12 22:06:36 user-pc nohang[619]: config: /etc/nohang/nohang.conf авг 12 22:06:36 user-pc nohang[619]: Monitoring has started! ● oomd.service - Userland out-of-memory killer daemon Loaded: loaded (/etc/systemd/system/oomd.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2019-08-12 22:06:23 +09; 6min ago Main PID: 591 (oomd_bin) Tasks: 3 (limit: 2302) Memory: 4.8M (min: 64.0M low: 64.0M) CPU: 25.900s CGroup: /system.slice/oomd.service └─591 /usr/local/bin/oomd_bin --interval 1 --config /etc/oomd.json авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.max/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/memory.swap.current/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/memory.swap.max/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/cgroup.procs/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/pids.max/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/io.pressure/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/memory.low/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/cgroup.max.depth/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/cgroup.events/memory.stat авг 12 22:13:20 user-pc oomd[591]: [../util/Fs.cpp:224] Unable to open /sys/fs/cgroup/system.slice/memory.pressure/memory.stat