1CLONE_THREAD 2CLONE_FS 3CLONE_NEWNS 4CLONE_SIGHAND 5CLONE_VM 6CLONE_FILES 7CLONE_SYSVSEM 8CLONE_NEWUTS 9CLONE_NEWIPC 10CLONE_NEWNET 11CLONE_NEWUSER 12CLONE_NEWPID 13CLONE_NEWCGROUP 14