[Pkg-xfce-devel] Bug, potentially in lightdm or another package (mate..., X, ... systemd)
Yves-Alexis Perez
corsac at debian.org
Sun Dec 17 15:40:51 UTC 2017
Hi MATE people,
I've received the following mail (copied in full, thus top-posting for
clarity) to the pkg-xfce-devel mailing list (where we also maintain lightdm).
I think the left-over processes are due to a systemd user session but I'm not
completely sure. In any case I think it's more related to MATE than LightDM.
Regards,
On Sun, 2017-12-17 at 13:21 +0100, Erich Minderlein wrote:
> Hi all
>
> Content-Type: text/plain; charset="us-ascii"
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Subject: lightdm: 12 user processes are left running when having logged
> out from X
>
> X-Mailer: reportbug 7.1.7
> Date: Sun, 17 Dec 2017 12:46:15 +0100
>
> Package: lightdm
> Version: 1.18.3-1
> Severity: important
>
> Dear Maintainer,
>
>
> -- System Information:
> Debian Release: 9.3
> APT prefers stable-updates
> APT policy: (500, 'stable-updates'), (500, 'stable')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 4.9.0-4-amd64 (SMP w/2 CPU cores)
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8),
> LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
>
> Versions of packages lightdm depends on:
> ii adduser 3.115
> ii dbus 1.10.24-0+deb9u1
> ii debconf [debconf-2.0] 1.5.61
> ii libaudit1 1:2.6.7-2
> ii libc6 2.24-11+deb9u1
> ii libgcrypt20 1.7.6-2+deb9u2
> ii libglib2.0-0 2.50.3-2
> ii libpam-systemd 232-25+deb9u1
> ii libpam0g 1.1.8-3.6
> ii libxcb1 1.12-1
> ii libxdmcp6 1:1.1.2-3
> ii lightdm-gtk-greeter [lightdm-greeter] 2.0.2-1
>
> Versions of packages lightdm recommends:
> ii xserver-xorg 1:7.7+19
>
> Versions of packages lightdm suggests:
> ii accountsservice 0.6.43-1
> ii upower 0.99.4-4+b1
> pn xserver-xephyr <none>
>
> -- Configuration Files:
> /etc/lightdm/lightdm.conf changed:
> [LightDM]
> [Seat:*]
> greeter-allow-guest=false
> session-cleanup-script=
> [XDMCPServer]
> [VNCServer]
>
>
> -- debconf information:
> lightdm/daemon_name: /usr/sbin/lightdm
> * shared/default-x-display-manager: lightdm
>
> Session cleanup script does not exist
>
>
> When checking out from X session as user 1000 and checking in as user 1001,
> I had bad performance on my relatively limited notebook.
> I found that the following processes were left running, owned by user 1000
>
> PPID PID PGID SID TTY TPGID STAT UID TIME COMMAND
> 1 2568 2568 2568 ? -1 Ss 1000 0:00
> /lib/systemd/systemd --user
> 2568 2574 2568 2568 ? -1 S 1000 0:00 (sd-pam)
> 1 2585 2584 2584 ? -1 Sl 1000 0:00
> /usr/bin/gnome-keyring-daemon --daemonize --login
> 2568 2595 2595 2595 ? -1 Ss 1000 0:00
> /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile
> --systemd-activation
> 2568 2639 2595 2595 ? -1 Sl 1000 0:00
> /usr/lib/dconf/dconf-service
> 2568 2658 2658 2658 ? -1 Ssl 1000 0:00
> /usr/lib/gvfs/gvfsd
> 2568 2711 2658 2658 ? -1 Sl 1000 0:00
> /usr/lib/gvfs/gvfsd-trash --spawner :1.14 /org/gtk/gvfs/exec_spaw/0
> 2568 2721 2721 2721 ? -1 Ssl 1000 0:00
> /usr/lib/gvfs/gvfs-udisks2-volume-monitor
> 2568 2760 2760 2760 ? -1 Ssl 1000 0:00
> /usr/lib/gvfs/gvfs-afc-volume-monitor
> 2568 2766 2766 2766 ? -1 Ssl 1000 0:00
> /usr/lib/gvfs/gvfs-mtp-volume-monitor
> 2568 2770 2770 2770 ? -1 Ssl 1000 0:00
> /usr/lib/gvfs/gvfs-goa-volume-monitor
> 2568 2774 2774 2774 ? -1 Ssl 1000 0:00
> /usr/lib/gvfs/gvfs-gphoto2-volume-monitor
> 2568 2823 2823 2823 ? -1 Ssl 1000 0:00
> /usr/lib/gvfs/gvfsd-metadata
> 1 3789 3788 3788 ? -1 Sl 1000 0:00
> /usr/bin/gnome-keyring-daemon --daemonize --login
>
> Same applies to other user 1001, processes are left running when
> checking out of an X Session.
>
> I expect that no processes are left running, when having checked out as
> X session user.
>
> I tried to write a logout script, but at a certain time the user cannot
> be found anymore in the environment.
> So a Session cleanup script does not exist, and it should be run while
> the X user is still registered in the tree of processes.
>
> This bug might as well belong to X or to mate or to systemd, I do not
> know the complete process startup structure of systemd-lightdm-X-mate
>
> MATE Desktop Environment 1.16.2
>
> systemd --version
> systemd 232
> +PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP
> +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS
> +KMOD +IDN
>
> Xserver 1.19.2
>
> Please help associating this report to the right package.
>
> Best regards
>
> Erich Minderlein
>
> _______________________________________________
> Pkg-xfce-devel mailing list
> Pkg-xfce-devel at lists.alioth.debian.org
> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-xfce-devel
--
Yves-Alexis
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