On Tue, Nov 23, 2021 at 12:05:37PM +0000, Jonathan Dowland wrote: > On Mon, Nov 22, 2021 at 11:39:46AM -0500, Greg Wooledge wrote: > > I don't know the exact time that I closed the login shell on tty2. It > > *could* have been at exactly 11:19:00 but that seems like a suspiciously > > round number (and a suspiciously long time after I started the service). > > You don't, but your system(d) does: the system instance, not the user > instance. > > From my "journalctl --follow" output, after a "su -" and then > immediately after closing the resulting shell: > > Nov 23 12:03:27 coil su[1330250]: pam_unix(su-l:session): session > closed for user root
Nov 22 11:18:27 unicorn systemd[1604310]: Started Sleep command for testing. Nov 22 11:18:50 unicorn login[1604301]: pam_unix(login:session): session closed> Nov 22 11:18:50 unicorn systemd[1]: getty@tty2.service: Succeeded. Nov 22 11:18:50 unicorn systemd[1]: session-7634.scope: Succeeded. Nov 22 11:18:50 unicorn systemd[1]: getty@tty2.service: Scheduled restart job, > Nov 22 11:18:50 unicorn systemd-logind[611]: Session 7634 logged out. Waiting f> Nov 22 11:18:50 unicorn systemd[1]: Stopped Getty on tty2. Nov 22 11:18:50 unicorn systemd[1]: Started Getty on tty2. Nov 22 11:18:50 unicorn systemd-logind[611]: Removed session 7634. Nov 22 11:18:50 unicorn pulseaudio[1604331]: Error opening PCM device front:1: > Nov 22 11:18:50 unicorn systemd[1604310]: pulseaudio.service: Succeeded. Nov 22 11:19:00 unicorn systemd[1]: Stopping User Manager for UID 1004... This basically confirms my guesswork: the "User Manager" isn't stopped immediately when the last login session is closed. There's some delay. Maybe it's the next time the clock reads *:00 or maybe it's 10 seconds. Nov 22 11:19:00 unicorn systemd[1]: Stopping User Manager for UID 1004... Nov 22 11:19:00 unicorn systemd[1604310]: Stopped target Main User Target. Nov 22 11:19:00 unicorn systemd[1604310]: Stopping D-Bus User Message Bus... Nov 22 11:19:00 unicorn systemd[1604310]: Stopping Multimedia Service... Nov 22 11:19:00 unicorn systemd[1604310]: Stopping Sleep command for testing... Nov 22 11:19:00 unicorn systemd[1604310]: dbus.service: Succeeded. Nov 22 11:19:00 unicorn systemd[1604310]: Stopped D-Bus User Message Bus. Nov 22 11:19:00 unicorn systemd[1604310]: sleeper.service: Succeeded. Nov 22 11:19:00 unicorn systemd[1604310]: Stopped Sleep command for testing. [...] It seems to do what's desired. That's the important takeaway.