158 		p_err("too few parameters for cgroup show");  in do_show()
161 		p_err("too many parameters for cgroup show");  in do_show()
167 		p_err("can't open cgroup %s", argv[1]);  in do_show()
215 		p_err("can't open cgroup %s: %s", fpath, strerror(errno));  in do_show_tree_fn()
223 			p_err("can't query bpf programs attached to %s: %s",  in do_show_tree_fn()
290 			p_err("cgroup v2 isn't mounted");  in do_show_tree()
298 		p_err("too many parameters for cgroup tree");  in do_show_tree()
313 		p_err("can't iterate over %s: %s", cgroup_root,  in do_show_tree()
342 		p_err("too few parameters for cgroup attach");  in do_attach()
348 		p_err("can't open cgroup %s", argv[1]);  in do_attach()
354 		p_err("invalid attach type");  in do_attach()
370 			p_err("unknown option: %s", argv[i]);  in do_attach()
376 		p_err("failed to attach program");  in do_attach()
400 		p_err("too few parameters for cgroup detach");  in do_detach()
406 		p_err("can't open cgroup %s", argv[1]);  in do_detach()
412 		p_err("invalid attach type");  in do_detach()
423 		p_err("failed to detach program");  in do_detach()