On Sun, 18 Mar 2012 18:26:53 -0600 Canek Peláez Valdés <can...@gmail.com> wrote:
> On Sun, Mar 18, 2012 at 5:43 PM, Kok, Auke-jan H > <auke-jan.h....@intel.com> wrote: > > On Sun, Mar 18, 2012 at 3:08 PM, Canek Peláez Valdés <can...@gmail.com> > > wrote: > >> > >> When I use su to become root, after logout the following message appears: > >> > >> ...killed. > >> I can't recall ever facing that "message", so maybe you can explain what does it mean? Are the long-running processes you've started from "su" get killed? ...along with su itself, which produces that message? Also, maybe that is similar to the past logind issue? http://thread.gmane.org/gmane.comp.sysutils.systemd.devel/4370/ > >> So, two questions: > >> > >> 1. Why is my session being killed at logout time? > >> > >> 2. The pam_systemd.so is really necessary? The "...killed." message > >> appears after two or three seconds, and it's slightly annoying. > > > > please read `man pam_systemd`... > > OK, done. Still doesn't understand. The kill-session-processes option > is not set, so it should default to "no", right? Also, my > /etc/systemd/systemd-logind.conf has no options set, in particular > KillOnlyUsers is not set, and therefore is should default to "no", > right? So, again, if both options are no, what is killing my session > at logout time? > I can suggest to check what exactly kills the processes by connecting strace to: a) systemd itself ("strace -s65535 -f -p 1 2>&1 | grep kill") b) systemd-logind c) su process (*after* it was started) I'm suggesting this because systemd can kill leftover pids when cleaning up controller hierarchies, logind can kill the session, pam_systemd seem to have a kill-parameter and probably can do it by itself as well. When debugging somewhat similar issue in the past, I've wasted a lot of time mistakingly assuming that it's either logind or pam_systemd that does the killing, while in fact it was totally unrelated to kill-switches in both of them (more details can be found here: http://goo.gl/S5ZLO). -- Mike Kazantsev // fraggod.net
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