[Pkg-xfce-devel] Bug, potentially in lightdm or another package (mate..., X, ... systemd)

Alex ARNAUD alexarnaud at hypra.fr
Tue Apr 10 08:36:27 UTC 2018 

Hello all,

I've added monsta in CC, it could probably help us. I have no idea if 
it's a Mate related issue or not.

Best regards,
Alex.

Le 17/12/2017 à 16:31, Yves-Alexis Perez a écrit :
> 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
>>
>>
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>> pkg-mate-team at lists.alioth.debian.org
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