Good day, I managed to shoot myself in the foot with described thing by extending DefaultControllers= list in systemd.conf(5) - systemd took a pid list from new controller and killed them every time when getty@ttyX was respawned, effectively emulating kill-session-processes=1 in my case.
Guess it's not that hard to spot relationship between these options, but maybe it should be explicitly documented? Also, not sure if the issue really affects stuff like gdm, but I assume they do respawn via Restart=, so it should. Otherwise maybe the patch is less relevant and note should probably be corrected to mention getty specifically. >From d6baa7e3e1e40a224a366935a412544ca2f0b814 Mon Sep 17 00:00:00 2001 From: Mike Kazantsev <[email protected]> Date: Mon, 30 Jan 2012 07:01:05 +0600 Subject: [PATCH] man: add a note to pam_systemd(8) about controllers= vs DefaultControllers= --- man/pam_systemd.xml | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/man/pam_systemd.xml b/man/pam_systemd.xml index 883b50b..ec53f87 100644 --- a/man/pam_systemd.xml +++ b/man/pam_systemd.xml @@ -217,6 +217,15 @@ ends, the latter kills processes as soon as the last session of the user ends.</para> + <para>Also note that <varname>controllers=</varname> + setting must be a superset of <varname>DefaultControllers=</varname> in + <citerefentry><refentrytitle>systemd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry> + (or <varname>ControlGroup=</varname> in a login manager unit file), + otherwise restarting getty (or other login manager service) + will cause systemd to send SIGKILL to the pids that are left in + controllers not covered by <varname>controllers=</varname> option, + just like <varname>kill-session-processes=1</varname> would do.</para> + <para>If the options are omitted they default to <option>kill-session-processes=0</option>, <option>kill-only-users=</option>, -- 1.7.8.1 -- Mike Kazantsev // fraggod.net _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
