12:pids:/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service 11:hugetlb:/ 10:blkio:/system.slice/system-serial\x2dgetty.slice 9:net_cls,net_prio:/ 8:rdma:/ 7:devices:/system.slice/system-serial\x2dgetty.slice 6:freezer:/ 5:perf_event:/ 4:memory:/system.slice/system-serial\x2dgetty.slice 3:cpuset:/ 2:cpu,cpuacct:/system.slice/system-serial\x2dgetty.slice 1:name=systemd:/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service 0::/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service