Hi: I meet a issue, and not sure if it is normal Using the below script, the last line mount will fail after unmount And it will fail until reboot system mount -t cgroup -o cpu,cpuset xx cgroup mkdir cgroup/x rmdir cgroup/x umount cgroup mount -t cgroup -o cpu xx cgroup mount: xx already mounted or cgroup busy but if I add sleep, it will success mount -t cgroup -o cpu,cpuset xx cgroup mkdir cgroup/x rmdir cgroup/x sleep 10 <<<<========== umount cgroup mount -t cgroup -o cpu xx cgroup - Li RongQing
