From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: util-linux-owner@vger.kernel.org Received: from ishtar.tlinx.org ([173.164.175.65]:34420 "EHLO Ishtar.sc.tlinx.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727078AbeITTI2 (ORCPT ); Thu, 20 Sep 2018 15:08:28 -0400 Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.7/8.14.4/SuSE Linux 0.8) with ESMTP id w8KDOtLA075403 for ; Thu, 20 Sep 2018 06:24:57 -0700 Message-ID: <5BA39FA7.3070504@tlinx.org> Date: Thu, 20 Sep 2018 06:24:55 -0700 From: L A Walsh MIME-Version: 1.0 To: util-linux@vger.kernel.org Subject: question about lsns. Content-Type: text/plain; charset=UTF-8; format=flowed Sender: util-linux-owner@vger.kernel.org List-ID: I came across lsns and decided to see what ns's it might list on my system. as my self, > lsns NS TYPE NPROCS PID USER COMMAND 4026531835 cgroup 21 22959 law gvim prelink_dependencies 4026531836 pid 21 22959 law gvim prelink_dependencies 4026531837 user 21 22959 law gvim prelink_dependencies 4026531838 uts 21 22959 law gvim prelink_dependencies 4026531839 ipc 21 22959 law gvim prelink_dependencies 4026531840 mnt 21 22959 law gvim prelink_dependencies 4026531992 net 21 22959 law gvim prelink_dependencies and as root: # lsns NS TYPE NPROCS PID USER COMMAND 4026531835 cgroup 429 1 root init [3] 4026531836 pid 429 1 root init [3] 4026531837 user 429 1 root init [3] 4026531838 uts 429 1 root init [3] 4026531839 ipc 429 1 root init [3] 4026531840 mnt 428 1 root init [3] 4026531860 mnt 1 82 root kdevtmpfs 4026531992 net 429 1 root init [3] ----------------- To me this seems a bit odd as I don't recall doing and nsenter or creation commands, though there may be some tucked away in some script or another. But why these? a gvim editor session (I hve several files up, but don't know if they are all in the same ns. It doesn't seem the lsns has a way to list what the other procs are in the name space (might be useful rather than going and looking at the hierarchy). And for root....an init cmd that seems to have a nproc value rough equal to the number of procs running. Not sure what NPROCS means...a ps -ef|grep law shows 81 procs, but weeding out the ones that appear to be threads, I get 35, so not sure where nprocs gets 21. Is this a result of auto-grouping by the the scheduler? Seems odd it points at an edit session as the command that is in the ns and not a bash or ssh login... Thanks! -l