. .. attr
autogroup auxv cgroup clear_refs cmdline comm coredump_filter cpu_resctrl_groups cpuset cwd environ exe fd fdinfo gid_map io limits loginuid map_files maps mem mountinfo mounts mountstats net ns numa_maps oom_adj oom_score oom_score_adj pagemap patch_state personality projid_map root sched schedstat sessionid setgroups smaps smaps_rollup stack stat statm status syscall task timens_offsets timers timerslack_ns uid_map wchan