Debian Bug report logs - #873199
gdm3 fails to open X sessions on the console and on X servers using xdmcp (Stretch 9.1)

Display info messages

Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Jean-Paul Bouchet <jean-paul.bouchet@inra.fr>

To: <submit@bugs.debian.org>

Subject: gdm3 fails to open X sessions on the console and on X servers using xdmcp (Stretch 9.1)

Date: Fri, 25 Aug 2017 15:07:07 +0200

Package: gdm3
Version: 3.22.3-3
Severity: grave
Justification: renders package unusable

Dear Maintainer,

A few months ago I met no difficulties to configure our debian Wheezy 
server to manage X sessions with gdm3, on the console and an a set of X 
servers (Windows PC with Cygwin/X) using xdmcp.
I was unable to retrieve this functionality after a dist-upgrade to 
Jessie (cf. https://lists.debian.org/debian-user/2016/10/msg00437.html).
I hoped that Stretch could permit me to retrieve it. The dist-upgrade 
from Jessie to Stretch was perfect but let unsolved our problems with gdm3.
May be does it work on a fresh install ? On my upgraded server it 
doesn't and I fail to progress.
I don't know whether the problems are due to wrong file permissions 
somewhere, wrong values for some parameters, or to problems on which I 
can't get a grip on, or even to the gdm3 package.
They probably are not the same for the console and the xdmcp requests.
Thank you to have a look at these lines that I have tried to select for you.

1. For the console

The server reboots without any error and finishes with a last message 
telling that GNOME Display Manager has started but nothing else is 
displayed (no greeter, no prompt).
I have to type Alt-Ctrl-F3 (or F4, F5, F6) to get a login prompt on tty3 
(or tty4, tty5, tty6) and open a terminal on the console.
I can also connect with ssh -X from other Linux workstations.

Just after this reboot, I get the status of gdm3 and cgmanager services:

systemctl -l status gdm3
● gdm.service - GNOME Display Manager
   Loaded: loaded (/lib/systemd/system/gdm.service; static; vendor 
preset: enabled)
   Active: active (running) since Tue 2017-08-22 18:38:48 CEST; 8min ago
  Process: 3849 ExecStartPre=/usr/share/gdm/generate-config 
(code=exited, status=0/SUCCESS)
  Process: 3844 ExecStartPre=/bin/sh -c [ "$(cat 
/etc/X11/default-display-manager 2>/dev/null)" = "/usr/sbin/gdm3" ] 
(code=exited, status=0/SUCCESS)
 Main PID: 3858 (gdm3)
    Tasks: 3 (limit: 12288)
   CGroup: /system.slice/gdm.service
           └─3858 /usr/sbin/gdm3

systemctl -l status cgmanager
● cgmanager.service - Cgroup management daemon
   Loaded: loaded (/lib/systemd/system/cgmanager.service; disabled; 
vendor preset: enabled)
   Active: inactive (dead)

Curiously it seems that there has been no attempt to launch X on the 
server (Xorg.0.log not modified during the reboot), despite a loop to 
try to create and display the gdm greeter on the console (from 
/var/log/debug).
Last update of /var/log/Xorg.0.log corresponds with a launch of startx 
on a session opened on the console (tty3) with cgmanager and gdm3 
services running.
I see no error in Xorg.0.log, but nothing was displayed and tty3 seemed 
frozen after this attempt.

What I get with systemd-cgls just after the reboot (cgmanager is 
lacking: loaded but dead)
Control group /:
-.slice
├─init.scope
│ └─1 /sbin/init
└─system.slice
  ├─irqbalance.service
  │ └─3343 /usr/sbin/irqbalance --foreground
  ├─lvm2-lvmetad.service
  │ └─2333 /sbin/lvmetad -f
  ├─gdm.service
  │ └─3858 /usr/sbin/gdm3
  ├─nfs-idmapd.service
  │ └─3262 /usr/sbin/rpc.idmapd
  ├─nfs-mountd.service
  │ └─3450 /usr/sbin/rpc.mountd --manage-gids
  ├─console-kit-daemon.service
  │ └─4279 /usr/sbin/console-kit-daemon --no-daemon
  ├─colord.service
  │ └─3499 /usr/lib/colord/colord
  ├─systemd-timesyncd.service
  │ └─3323 /lib/systemd/systemd-timesyncd
  ├─nmbd.service
  │ └─3777 /usr/sbin/nmbd
  ├─NetworkManager.service
  │ └─3335 /usr/sbin/NetworkManager --no-daemon
  ├─dbus.service
  │ └─3330 /usr/bin/dbus-daemon --system --address=systemd: --nofork 
--nopidf...
  ├─accounts-daemon.service
  │ └─3347 /usr/lib/accountsservice/accounts-daemon
  ├─system-postgresql.slice
  │ ├─postgresql@9.4-prod.service
  │ │ ├─3551 /usr/lib/postgresql/9.4/bin/postgres -D /db/pg/9.4/prod -c 
confi...
  │ │ ├─3617 postgres: logger process
  │ │ ├─3641 postgres: checkpointer process
  │ │ ├─3642 postgres: writer process
  │ │ ├─3643 postgres: wal writer process
  │ │ ├─3644 postgres: autovacuum launcher process
  │ │ └─3645 postgres: stats collector process
  │ ├─postgresql@9.4-main.service
  │ │ ├─3552 /usr/lib/postgresql/9.4/bin/postgres -D /db/pg/9.4/main -c 
confi...
  │ │ ├─3616 postgres: logger process
  │ │ ├─3636 postgres: checkpointer process
  │ │ ├─3637 postgres: writer process
  │ │ ├─3638 postgres: wal writer process
  │ │ ├─3639 postgres: autovacuum launcher process
  │ │ └─3640 postgres: stats collector process
  │ ├─postgresql@9.1-prod.service
  │ │ ├─3548 /usr/lib/postgresql/9.1/bin/postgres -D /db/pg/9.1/prod -c 
unix_...
  │ │ ├─3668 postgres: logger process
  │ │ ├─3671 postgres: writer process
  │ │ ├─3672 postgres: wal writer process
  │ │ ├─3673 postgres: autovacuum launcher process
  │ │ └─3674 postgres: stats collector process
  │ ├─postgresql@9.1-main.service
  │ │ ├─3547 /usr/lib/postgresql/9.1/bin/postgres -D /db/pg/9.1/main -c 
confi...
  │ │ ├─3666 postgres: logger process
  │ │ ├─3682 postgres: writer process
  │ │ ├─3683 postgres: wal writer process
  │ │ ├─3684 postgres: autovacuum launcher process
  │ │ └─3685 postgres: stats collector process
  │ └─postgresql@9.6-main.service
  │   ├─3498 /usr/lib/postgresql/9.6/bin/postgres -D 
/var/lib/postgresql/9.6/...
  │   ├─3558 postgres: 9.6/main: checkpointer process
  │   ├─3559 postgres: 9.6/main: writer process
  │   ├─3560 postgres: 9.6/main: wal writer process
  │   ├─3561 postgres: 9.6/main: autovacuum launcher process
  │   └─3562 postgres: 9.6/main: stats collector process
  ├─winbind.service
  │ ├─3793 /usr/sbin/winbindd
  │ ├─3800 /usr/sbin/winbindd
  │ ├─4154 /usr/sbin/winbindd
  │ └─4155 /usr/sbin/winbindd
  ├─smbd.service
  │ ├─3860 /usr/sbin/smbd
  │ ├─3867 /usr/sbin/smbd
  │ ├─3868 /usr/sbin/smbd
  │ └─4156 /usr/sbin/smbd
  ├─sfcb.service
  │ ├─4161 /usr/sbin/sfcbd -d
  │ ├─4162 /usr/sbin/sfcbd -d
  │ ├─4167 /usr/sbin/sfcbd -d
  │ ├─4168 /usr/sbin/sfcbd -d
  │ ├─4516 /usr/sbin/sfcbd -d
  │ └─4525 /usr/sbin/sfcbd -d
  ├─ssh.service
  │ ├─ 3438 /usr/sbin/sshd -D
  │ ├─22166 sshd: root@pts/0
  │ ├─22178 -bash
  │ └─22219 systemd-cgls
  ├─avahi-daemon.service
  │ ├─4262 avahi-daemon: running [my_strech_server.local]
  │ └─4263 avahi-daemon: chroot helper
  ├─smartd.service
  │ └─3333 /usr/sbin/smartd -n
  ├─rpcbind.service
  │ └─3324 /sbin/rpcbind -f -w
  ├─nfs-blkmap.service
  │ └─2361 /usr/sbin/blkmapd
  ├─dataeng.service
  │ ├─3650 /opt/dell/srvadmin//sbin/dsm_sa_datamgrd
  │ ├─4718 /opt/dell/srvadmin//sbin/dsm_sa_eventmgrd
  │ ├─4772 /opt/dell/srvadmin//sbin/dsm_sa_snmpd
  │ └─4876 /opt/dell/srvadmin//sbin/dsm_sa_datamgrd
  ├─ModemManager.service
  │ └─3346 /usr/sbin/ModemManager
  ├─systemd-logind.service
  │ └─3350 /lib/systemd/systemd-logind
  ├─rtkit-daemon.service
  │ └─3352 /usr/lib/rtkit/rtkit-daemon
  ├─dsm_om_connsvc.service
  │ ├─5446 /opt/dell/srvadmin/sbin/dsm_om_connsvcd -run
  │ └─5447 /opt/dell/srvadmin/sbin/dsm_om_connsvcd -run
  ├─cups.service
  │ └─3353 /usr/sbin/cupsd -l
  ├─minissdpd.service
  │ └─3754 /usr/sbin/minissdpd -i 0.0.0.0
  ├─polkit.service
  │ └─3385 /usr/lib/policykit-1/polkitd --no-debug
  ├─cron.service
  │ └─3351 /usr/sbin/cron -f
  ├─apache2.service
  │ ├─4254 /usr/sbin/apache2 -k start
  │ ├─4255 /usr/sbin/apache2 -k start
  │ ├─4459 /usr/sbin/apache2 -k start
  │ ├─4460 /usr/sbin/apache2 -k start
  │ └─4461 /usr/sbin/apache2 -k start
  ├─systemd-udevd.service
  │ └─2380 /lib/systemd/systemd-udevd
  ├─acpid.service
  │ └─3359 /usr/sbin/acpid
  ├─rpc-statd.service
  │ └─3779 /sbin/rpc.statd --no-notify
  ├─rsyslog.service
  │ └─3348 /usr/sbin/rsyslogd -n
  ├─tomcat7.service
  │ └─4119 /usr/lib/jvm/default-java/bin/java 
-Djava.util.logging.config.file...
  ├─atd.service
  │ └─3337 /usr/sbin/atd -f
  ├─systemd-journald.service
  │ └─2292 /lib/systemd/systemd-journald
  ├─cups-browsed.service
  │ └─3354 /usr/sbin/cups-browsed
  └─exim4.service
    └─4175 /usr/sbin/exim4 -bd -q30m


Content of /var/log/messages

Aug 22 18:38:36 my_strech_server kernel: [    0.000000] Linux version 
4.9.0-3-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0 
20170516 (Debian 6.3.0-18) ) #1 SMP Debian 4.9.30-2+deb9u3 (2017-08-06)
Aug 22 18:38:36 my_strech_server kernel: [    0.000000] Command line: 
BOOT_IMAGE=/vmlinuz-4.9.0-3-amd64 
root=UUID=0d05b519-16e4-4bb9-9834-d80a7f6d5436 ro quiet
...
--> first error:
Aug 22 18:38:50 my_stretch_server udev-acl.ck[4355]: g_slice_set_config: 
assertion 'sys_page_size == 0' failed
Aug 22 18:38:50 my_stretch_server udev-acl.ck[4433]: g_slice_set_config: 
assertion 'sys_page_size == 0' failed
Aug 22 18:38:50 my_stretch_server gdm-session-worker[3909]: Failed 
opening dbus connection: org.freedesktop.DBus.Error.FileNotFound: Failed 
to connect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou 
dossier de ce type (No such file or directory with this type)

--> I see that /sys/fs/cgroup/cgmanager doesn't exist. I cannot create 
it (read-only file system)

Aug 22 18:38:51 my_stretch_server 
/usr/lib/gdm3/gdm-wayland-session[4434]: Activating service 
name='org.freedesktop.systemd1'
Aug 22 18:38:51 my_stretch_server systemd-shim[4519]: Could not connect 
to cgmanager: Could not connect: No such file or directory
Aug 22 18:38:51 my_stretch_server systemd-shim[4519]: Unable to acquire 
bus name 'org.freedesktop.systemd1'.  Quitting.
Aug 22 18:38:51 my_strech_server 
/usr/lib/gdm3/gdm-wayland-session[4434]: Activated service 
'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 
exited with status 1
Aug 22 18:38:51 my_strech_server 
/usr/lib/gdm3/gdm-wayland-session[4434]: Unable to register display with 
display manager
Aug 22 18:38:51 my_strech_server gdm-session-worker[3909]: Failed 
opening dbus connection: org.freedesktop.DBus.Error.FileNotFound: Failed 
to connect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou 
dossier de ce type
Aug 22 18:38:51 my_strech_server gdm3: Child process -4434 was already dead.
Aug 22 18:38:51 my_strech_server udev-acl.ck[4624]: g_slice_set_config: 
assertion 'sys_page_size == 0' failed
Aug 22 18:38:51 my_strech_server gdm3: Child process 3909 was already dead.
Aug 22 18:38:51 my_strech_server gdm3: Unable to kill session worker process
Aug 22 18:38:51 my_strech_server [4635]: g_slice_set_config: assertion 
'sys_page_size == 0' failed
Aug 22 18:38:51 my_strech_server gdm-session-worker[4623]: Failed 
opening dbus connection: org.freedesktop.DBus.Error.FileNotFound: Failed 
to connect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou 
dossier de ce type
Aug 22 18:38:51 my_strech_server 
/usr/lib/gdm3/gdm-wayland-session[4636]: Activating service 
name='org.freedesktop.systemd1'
Aug 22 18:38:51 my_strech_server systemd-shim[4641]: Could not connect 
to cgmanager: Could not connect: No such file or directory

--> Then a loop with the same sequence of errors until the final relief 
(too many opened files):

Aug 22 18:40:58 my_stretch_server 
/usr/lib/gdm3/gdm-wayland-session[22118]: Unable to register display 
with display manager
Aug 22 18:40:58 my_stretch_server gdm-session-worker[22107]: Failed 
opening dbus connection: org.freedesktop.DBus.Error.FileNotFound: Failed 
to connect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou 
dossier de ce type (No such file or directory with this type)
Aug 22 18:40:58 my_stretch_server gdm3: Could not start command 
'/usr/lib/gdm3/gdm-session-worker': Trop de fichiers ouverts (too many 
opened files)
Aug 22 18:40:58 my_stretch_server gdm3: Child process -22118 was already 
dead.
Aug 22 18:40:58 my_stretch_server gdm3: Child process 22107 was already 
dead.
Aug 22 18:40:58 my_stretch_server gdm3: Unable to kill session worker 
process
Aug 22 18:40:58 my_stretch_server udev-acl.ck[22141]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed


Content of /var/log/debug:

Aug 22 18:38:48 my_strech_server gdm3: Enabling debugging
Aug 22 18:38:48 my_strech_server gdm3: Changing user:group to 
Debian-gdm:Debian-gdm
Aug 22 18:38:48 my_strech_server gdm3: Successfully connected to D-Bus
Aug 22 18:38:48 my_strech_server gdm3: GdmManager: GDM starting to 
manage displays
Aug 22 18:38:48 my_strech_server gdm3: GdmLocalDisplayFactory: Adding 
display on seat seat0
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: id: (null)
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: seat id: (null)
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: session class: greeter
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: initial: no
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: allow timed login: yes
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: local: yes
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: session type: wayland
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: seat id: seat0
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: initial: yes
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplayStore: Adding display 
/org/gnome/DisplayManager/Displays/94457410884384 to store
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: Managing display: 
/org/gnome/DisplayManager/Displays/94457410884384
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: Preparing display: 
/org/gnome/DisplayManager/Displays/94457410884384
Aug 22 18:38:48 my_strech_server gdm3: doing initial setup? no
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: prepare display
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: Got automatic login 
details for display: 0
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for worker for session
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: D-Bus server for 
workers listening on unix:abstract=/tmp/dbus-4Mk0bNLU
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for greeters and such
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: D-Bus server for 
greeters listening on unix:abstract=/tmp/dbus-0akj8611
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Setting display 
device: (null)
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: Running greeter
Aug 22 18:38:48 my_strech_server gdm3: GdmDisplay: Creating greeter for 
(null) (null)
Aug 22 18:38:48 my_strech_server gdm3: GdmLaunchEnvironment: Starting...
Aug 22 18:38:48 my_strech_server gdm3: GdmLaunchEnvironment: Setting up 
run time dir /var/run/gdm3/greeter
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for worker for session
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: D-Bus server for 
workers listening on unix:abstract=/tmp/dbus-iKmiTHbX
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for greeters and such
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: D-Bus server for 
greeters listening on unix:abstract=/tmp/dbus-Udx1l8hB
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Setting display 
device: (null)
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: starting conversation 
gdm-launch-environment
Aug 22 18:38:48 my_strech_server gdm3: GdmSessionWorkerJob: Starting 
worker...
Aug 22 18:38:48 my_strech_server gdm3: GdmSessionWorkerJob: Running 
session_worker_job process: gdm-session-worker 
[pam/gdm-launch-environment] /usr/lib/gdm3/gdm-session-worker
Aug 22 18:38:48 my_strech_server gdm3: GdmSessionWorkerJob: : 
SessionWorkerJob on pid 3909
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: setting session to 
type 'wayland'
Aug 22 18:38:48 my_strech_server gdm3: GdmLocalDisplayFactory: display 
status changed: 1
Aug 22 18:38:48 my_strech_server gdm3: GdmManager: Accepting XDMCP 
connections...
Aug 22 18:38:48 my_strech_server gdm3: GdmXdmcpDisplayFactory: Start up 
on host my_strech_server.avignon.inra.fr, port 177
Aug 22 18:38:48 my_strech_server gdm3: GdmXdmcpDisplayFactory: addrinfo 
family=inet6 type=datagram proto=UDP flags=passive
Aug 22 18:38:48 my_strech_server gdm3: GdmXdmcpDisplayFactory: 
Attempting to bind to host :: port 177
Aug 22 18:38:48 my_strech_server gdm3: GdmXdmcpDisplayFactory: Starting 
to listen on XDMCP port
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: Enabling debugging
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: connecting to address: unix:abstract=/tmp/dbus-iKmiTHbX
Aug 22 18:38:48 my_strech_server gdm3: GdmDBusServer: new connection 
0x55e8946c1650
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Handling new 
connection from worker
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Authenticating new 
connection
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: calling 'ListCachedUsers'
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
AccountsService: Failed to identify the current session: Aucun 
périphérique ou adresse
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: seat unloaded, so trying to set loaded 
property
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: Listing cached users, so not setting 
loaded property
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: Listing cached users, so not setting 
loaded property
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: worker connection is 
0x55e8946c1650
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Emitting 
conversation-started signal
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Beginning setup for 
session for program using PAM service gdm-launch-environment
Aug 22 18:38:48 my_strech_server gdm3: GdmSession: Conversation started
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: attempting to change state to SETUP_COMPLETE
Aug 22 18:38:48 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: initializing PAM; service=gdm-launch-environment 
username=Debian-gdm seat=seat0
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'XDG_SEAT=seat0'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'XDG_SESSION_CLASS=greeter'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: state SETUP_COMPLETE
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: ListCachedUsers finished, will set 
loaded property after list is fully loaded
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: tracking new user with object path 
/org/freedesktop/Accounts/User5446
...
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: tracking new user with object path 
/org/freedesktop/Accounts/User5449
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: unrefing manager owned by finished 
ListCachedUsers call
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user first_user is now loaded
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user first_user was not yet known, 
adding it
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: tracking user 'first_user'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: not yet loaded, so not emitting 
user-added signal
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: not all users loaded yet
...
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: not all users loaded yet
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user last_user is now loaded
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user last_user was not yet known, adding it
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: tracking user 'last_user'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: not yet loaded, so not emitting 
user-added signal
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: no pending users, trying to set loaded 
property
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: Seat wouldn't load, so giving up on it 
and setting loaded property
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: sending user-changed signal for user 
last_user
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: sent user-changed signal for user last_user
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: updating user last_user
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: attempting to change state to AUTHENTICATED
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: authenticating user Debian-gdm
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: state AUTHENTICATED
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: attempting to change state to AUTHORIZED
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: determining if authenticated user (password 
required:0) is authorized to session
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: state AUTHORIZED
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: attempting to change state to ACCREDITED
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'LOGNAME=Debian-gdm'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'USER=Debian-gdm'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'USERNAME=Debian-gdm'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'HOME=/var/lib/gdm3'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'SHELL=/bin/false'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 
'PATH=/usr/local/bin:/usr/bin:/bin:/usr/games'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: state ACCREDITED
Aug 22 18:38:49 my_strech_server gdm3: GdmSession: type wayland, 
program? yes, seat seat0
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: session display mode set to new-vt
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'XDG_SESSION_TYPE=wayland'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: attempting to change state to ACCOUNT_DETAILS_SAVED
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: user Debian-gdm, not fully loaded yet, will save 
account details later
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: trying to track new user with username 
Debian-gdm
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: finding user 'Debian-gdm' state 1
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: finding user 'Debian-gdm' state 2
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: Looking for user 'Debian-gdm' in 
accounts service
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: new user in accounts service with 
object path /org/freedesktop/Accounts/User114
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: tracking new user with object path 
/org/freedesktop/Accounts/User114
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: Found object path of user 'Debian-gdm': 
/org/freedesktop/Accounts/User114
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: finding user 'Debian-gdm' state 3
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user 'Debian-gdm' fetched
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: finished handling request for user 
'Debian-gdm'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: unrefing manager owned by fetch user 
request
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user Debian-gdm is now loaded
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user Debian-gdm was not yet known, 
adding it
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: tracking user 'Debian-gdm'
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: loaded, so emitting user-added signal
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: no pending users, trying to set loaded 
property
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: already loaded, so not setting loaded 
property
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: sending user-changed signal for user 
Debian-gdm
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: sent user-changed signal for user 
Debian-gdm
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: updating user Debian-gdm
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: user Debian-gdm is now loaded
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: sessions changed (user Debian-gdm) num=0
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: no pending users, trying to set loaded 
property
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: ActUserManager: already loaded, so not setting loaded 
property
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionSettings: saved session is
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionSettings: saved language is
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: saving account details for user Debian-gdm
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: Error calling GetAll() when retrieving properties for 
/org/freedesktop/Accounts/User114: L'opération a été annulée (operation 
canceled)
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
AccountsService: Error calling GetAll() when retrieving properties for 
/org/freedesktop/Accounts/User114: L'opération a été annulée (operation 
canceled)
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: attempting to change state to SESSION_OPENED
Aug 22 18:38:49 my_strech_server gdm-launch-environment]: 
GdmSessionWorker: Set PAM environment variable: 'XDG_VTNR=1'
Aug 22 18:38:50 my_strech_server udev-acl.ck[4355]: g_slice_set_config: 
assertion 'sys_page_size == 0' failed
Aug 22 18:38:50 my_strech_server udev-acl.ck[4433]: g_slice_set_config: 
assertion 'sys_page_size == 0' failed
Aug 22 18:38:50 my_strech_server gdm-session-worker[3909]: Failed 
opening dbus connection: org.freedesktop.DBus.Error.FileNotFound: Failed 
to connect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou 
dossier de ce type
Aug 22 18:38:50 my_strech_server gdm3: GdmSession: Emitting 
'session-opened' signal
Aug 22 18:38:50 my_strech_server gdm3: GdmDisplay: Greeter session opened
Aug 22 18:38:50 my_strech_server gdm3: GdmDisplay: session id:
Aug 22 18:38:50 my_strech_server gdm3: GdmSession: Stopping all 
conversations except for gdm-launch-environment
Aug 22 18:38:50 my_strech_server gdm3: GdmSession: type wayland, 
program? yes, seat seat0
Aug 22 18:38:50 my_strech_server gdm3: GdmSession: type wayland, 
program? yes, seat seat0
Aug 22 18:38:50 my_strech_server gdm3: GdmSession: Emitting 
'session-started' signal with pid '4434'
Aug 22 18:38:50 my_strech_server gdm3: GdmDisplay: Greeter started
Aug 22 18:38:50 my_strech_server gdm-wayland-session: Enabling debugging
Aug 22 18:38:50 my_strech_server gdm-wayland-session: Running session 
message bus
Aug 22 18:38:51 my_strech_server 
/usr/lib/gdm3/gdm-wayland-session[4434]: Activating service 
name='org.freedesktop.systemd1'
Aug 22 18:38:51 my_strech_server systemd-shim[4519]: Could not connect 
to cgmanager: Could not connect: No such file or directory
Aug 22 18:38:51 my_strech_server systemd-shim[4519]: Unable to acquire 
bus name 'org.freedesktop.systemd1'.  Quitting.
Aug 22 18:38:51 my_strech_server 
/usr/lib/gdm3/gdm-wayland-session[4434]: Activated service 
'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 
exited with status 1
Aug 22 18:38:51 my_strech_server gdm-wayland-session: could not fetch 
environment: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: 
Process org.freedesktop.systemd1 exited with status 1
Aug 22 18:38:51 my_strech_server gdm-wayland-session: Running wayland 
session
Aug 22 18:38:51 my_strech_server gdm3: GdmManager: trying to register 
new display
Aug 22 18:38:51 my_strech_server gdm3: GdmManager: Error while 
retrieving session id for sender: Error getting session id from systemd: 
Aucun périphérique ou adresse
Aug 22 18:38:51 my_strech_server gdm-wayland-session: Could not register 
display: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Aucun 
affichage disponible
Aug 22 18:38:51 my_strech_server 
/usr/lib/gdm3/gdm-wayland-session[4434]: Unable to register display with 
display manager
Aug 22 18:38:51 my_strech_server gdm-session-worker[3909]: Failed 
opening dbus connection: org.freedesktop.DBus.Error.FileNotFound: Failed 
to connect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou 
dossier de ce type
Aug 22 18:38:51 my_strech_server gdm3: GdmSession: Emitting 
'session-exited' signal with exit code '70'
Aug 22 18:38:51 my_strech_server gdm3: GdmSession: stopping conversation 
gdm-launch-environment
Aug 22 18:38:51 my_strech_server gdm3: GdmSessionWorkerJob: Stopping job 
pid:3909
Aug 22 18:38:51 my_strech_server gdm3: GdmCommon: sending signal 15 to 
process 3909
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplay: Greeter exited: 70
Aug 22 18:38:51 my_strech_server gdm3: GdmLocalDisplayFactory: display 
status changed: 3
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplayStore: Unreffing 
display: 0x55e8946c1320
... and so on ...
Aug 22 18:38:51 my_strech_server gdm3: GdmLocalDisplayFactory: Adding 
display on seat seat0
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplay: id: (null)
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplay: seat id: (null)
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplay: session class: greeter
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplay: initial: no
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplay: allow timed login: yes
Aug 22 18:38:51 my_strech_server gdm3: GdmDisplay: local: yes
... till the last attempt:
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplayStore: Unreffing 
display: 0x55e8946c1820
Aug 22 18:40:58 my_strech_server gdm3: GdmLocalDisplayFactory: Adding 
display on seat seat0
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: id: (null)
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: seat id: (null)
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: session class: greeter
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: initial: no
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: allow timed login: yes
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: local: yes
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: session type: wayland
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: seat id: seat0
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: initial: yes
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplayStore: Adding display 
/org/gnome/DisplayManager/Displays/94457410884896 to store
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: Managing display: 
/org/gnome/DisplayManager/Displays/94457410884896
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: Preparing display: 
/org/gnome/DisplayManager/Displays/94457410884896
Aug 22 18:40:58 my_strech_server gdm3: doing initial setup? no
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: prepare display
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: Got automatic login 
details for display: 0
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for worker for session
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: D-Bus server for 
workers listening on unix:abstract=/tmp/dbus-HJ93E8fP
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for greeters and such
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: D-Bus server for 
greeters listening on unix:abstract=/tmp/dbus-GV1nnfy4
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Setting display 
device: (null)
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: Running greeter
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: Creating greeter for 
(null) (null)
Aug 22 18:40:58 my_strech_server gdm3: GdmLaunchEnvironment: Starting...
Aug 22 18:40:58 my_strech_server gdm3: GdmLaunchEnvironment: Setting up 
run time dir /var/run/gdm3/greeter
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for worker for session
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: D-Bus server for 
workers listening on unix:abstract=/tmp/dbus-60C6CEFc
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Creating D-Bus server 
for greeters and such
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: D-Bus server for 
greeters listening on unix:abstract=/tmp/dbus-9afXPcl0
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Setting display 
device: (null)
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: starting conversation 
gdm-launch-environment
Aug 22 18:40:58 my_strech_server gdm3: GdmSessionWorkerJob: Starting 
worker...
Aug 22 18:40:58 my_strech_server gdm3: GdmSessionWorkerJob: Running 
session_worker_job process: gdm-session-worker 
[pam/gdm-launch-environment] /usr/lib/gdm3/gdm-session-worker
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: setting session to 
type 'wayland'
Aug 22 18:40:58 my_strech_server gdm3: GdmLocalDisplayFactory: display 
status changed: 1
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: Disposing display
Aug 22 18:40:58 my_strech_server gdm3: GdmCommon: sending signal 15 to 
process -22118
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Closing session
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Stopping all 
conversations
Aug 22 18:40:58 my_strech_server gdm3: GdmSessionWorkerJob: Stopping job 
pid:22107
Aug 22 18:40:58 my_strech_server gdm3: GdmCommon: sending signal 15 to 
process 22107
Aug 22 18:40:58 my_strech_server gdm3: GdmSessionWorkerJob: Waiting on 
process 22107
Aug 22 18:40:58 my_strech_server gdm3: GdmCommon: process (pid:22107) 
done (reaped earlier:1)
Aug 22 18:40:58 my_strech_server gdm3: GdmSessionWorkerJob: 
SessionWorkerJob died
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Disposing session
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Closing session
Aug 22 18:40:58 my_strech_server gdm3: GdmSession: Stopping all 
conversations
Aug 22 18:40:58 my_strech_server gdm3: GdmLocalDisplayFactory: Display 
0x55e8946c1820 disposed
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: Finalizing display: 
/org/gnome/DisplayManager/Displays/94457410885664
Aug 22 18:40:58 my_strech_server gdm3: GdmDisplay: finish display


What I get with systemctl -alb

...
août 22 18:38:36 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Activating via systemd: service name='org.freedesktop.PolicyKit1' 
unit='polkit.service'
août 22 18:38:36 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Authorization Manager...
...
août 22 18:38:36 my_strech_server.avignon.inra.fr systemd[1]: Started 
Login Service.
août 22 18:38:36 my_strech_server.avignon.inra.fr systemd-logind[3350]: 
New seat seat0.
août 22 18:38:36 my_strech_server.avignon.inra.fr systemd-logind[3350]: 
Watching system buttons on /dev/input/event0 (Power Button)
...
août 22 18:38:36 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: Systems Management Device Drivers...
...
août 22 18:38:36 my_strech_server.avignon.inra.fr polkitd[3385]: started 
daemon version 0.105 using authority implementation `local' version `0.105'
août 22 18:38:36 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Successfully activated service 'org.freedesktop.PolicyKit1'
août 22 18:38:36 my_strech_server.avignon.inra.fr systemd[1]: Started 
Authorization Manager.
...
août 22 18:38:36 my_strech_server.avignon.inra.fr NetworkManager[3335]: 
<info>  [1503419916.9683] NetworkManager (version 1.6.2) is starting...
août 22 18:38:36 my_strech_server.avignon.inra.fr NetworkManager[3335]: 
<info>  [1503419916.9684] Read config: 
/etc/NetworkManager/NetworkManager.conf
...
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Started 
Network Manager.
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Network Manager Wait Online...
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Reached 
target Network.
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Started 
Unattended Upgrades Shutdown.
...
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Starting 
NFS Mount Daemon...
août 22 18:38:37 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Activating via systemd: service name='org.freedesktop.nm_dispatcher' 
unit='dbus-org.freedesktop.nm-dispatcher.service'
...
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Starting 
OpenBSD Secure Shell server...
...
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Network Manager Script Dispatcher Service...
...
août 22 18:38:37 my_strech_server.avignon.inra.fr rpc.mountd[3450]: 
Version 1.3.3 starting
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Started 
NFS Mount Daemon.
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Starting 
NFS server and services...
...
août 22 18:38:37 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Successfully activated service 'org.freedesktop.nm_dispatcher'
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Started 
Network Manager Script Dispatcher Service.
...
août 22 18:38:37 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Activating via systemd: service name='org.freedesktop.hostname1' 
unit='dbus-org.freedesktop.hostname1.service'
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Hostname Service...
...
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Started 
NFS server and services.
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Reached 
target Remote File Systems (Pre).
...
août 22 18:38:37 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Successfully activated service 'org.freedesktop.hostname1'
août 22 18:38:37 my_strech_server.avignon.inra.fr systemd[1]: Started 
Hostname Service.
août 22 18:38:37 my_strech_server.avignon.inra.fr NetworkManager[3335]: 
<info>  [1503419917.9218] settings: hostname: using hostnamed
août 22 18:38:37 my_strech_server.avignon.inra.fr NetworkManager[3335]: 
<info>  [1503419917.9218] settings: hostname changed from (none) to 
"my_strech_server.avignon.inra.fr"
...
août 22 18:38:38 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Activating via systemd: service name='org.freedesktop.ColorManager' 
unit='colord.service'
...
août 22 18:38:38 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Manage, Install and Generate Color Profiles...
août 22 18:38:38 my_strech_server.avignon.inra.fr instsvcdrv[3416]: 
Starting Systems Management Device Drivers:
...
août 22 18:38:38 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Successfully activated service 'org.freedesktop.ColorManager'
août 22 18:38:38 my_strech_server.avignon.inra.fr systemd[1]: Started 
Manage, Install and Generate Color Profiles.
...
août 22 18:38:39 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: Systems Management Device Drivers.
...
août 22 18:38:39 my_strech_server.avignon.inra.fr dataeng[3355]: 
Starting Systems Management Data Engine:
...
août 22 18:38:46 my_strech_server.avignon.inra.fr systemd[1]: Started 
Network Manager Wait Online.
août 22 18:38:46 my_strech_server.avignon.inra.fr systemd[1]: Reached 
target Network is Online.
...
août 22 18:38:46 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Samba NMB Daemon...
...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
Daily apt download activities.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: 
apt-daily-upgrade.timer: Adding 26min 57.656580s random time.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
Daily apt upgrade and clean activities.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Reached 
target Timers.
...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
/etc/rc.local Compatibility.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Reached 
target Host and Network Name Lookups.
...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
Samba NMB Daemon.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Samba Winbind Daemon...
...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
Samba Winbind Daemon.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Samba SMB Daemon...
...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Reached 
target Remote File Systems.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: The X Display Manager...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: Start the GNUstep distributed object mapper...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: Start or stop the inetd daemon....
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: Speech Dispatcher...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: Start/stop sysstat's sadc...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: exim Mail Transport Agent...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Permit User Sessions...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
The Apache HTTP Server...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: Start Tomcat....
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
LSB: Start sfcb...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: The X Display Manager.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: Start or stop the inetd daemon..
août 22 18:38:47 my_strech_server.avignon.inra.fr gdomap[3806]: GNUstep 
distributed object mapper disabled, see /etc/default/gdomap.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: Start/stop sysstat's sadc.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: Start the GNUstep distributed object mapper.
août 22 18:38:47 my_strech_server.avignon.inra.fr 
speech-dispatcher[3811]: speech-dispatcher disabled; edit 
/etc/default/speech-dispatcher.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: Speech Dispatcher.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Started 
Permit User Sessions.
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Hold until boot process finishes up...
août 22 18:38:47 my_strech_server.avignon.inra.fr systemd[1]: Starting 
GNOME Display Manager...
août 22 18:38:48 my_strech_server.avignon.inra.fr systemd[1]: Started 
GNOME Display Manager.
août 22 18:38:48 my_strech_server.avignon.inra.fr systemd[1]: 
smbd.service: Supervising process 3860 which is not our child. We'll 
most likely not notice when it exits.
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: Enabling 
debugging
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: Changing 
user:group to Debian-gdm:Debian-gdm
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
Successfully connected to D-Bus
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmManager: GDM starting to manage displays
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmLocalDisplayFactory: Adding display on seat seat0
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: id: (null)
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: seat id: (null)
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: session class: greeter
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: initial: no
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: allow timed login: yes
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: local: yes
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: session type: wayland
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: seat id: seat0
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: initial: yes
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplayStore: Adding display 
/org/gnome/DisplayManager/Displays/94457410884384 to store
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Managing display: 
/org/gnome/DisplayManager/Displays/94457410884384
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Preparing display: 
/org/gnome/DisplayManager/Displays/94457410884384
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: doing 
initial setup? no
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: prepare display
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Got automatic login details for display: 0
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Creating D-Bus server for worker for session
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: D-Bus server for workers listening on 
unix:abstract=/tmp/dbus-4Mk0bNLU
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Creating D-Bus server for greeters and such
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: D-Bus server for greeters listening on 
unix:abstract=/tmp/dbus-0akj8611
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Setting display device: (null)
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Running greeter
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Creating greeter for (null) (null)
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmLaunchEnvironment: Starting...
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmLaunchEnvironment: Setting up run time dir /var/run/gdm3/greeter
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Creating D-Bus server for worker for session
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: D-Bus server for workers listening on 
unix:abstract=/tmp/dbus-iKmiTHbX
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Creating D-Bus server for greeters and such
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: D-Bus server for greeters listening on 
unix:abstract=/tmp/dbus-Udx1l8hB
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Setting display device: (null)
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: starting conversation gdm-launch-environment
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSessionWorkerJob: Starting worker...
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSessionWorkerJob: Running session_worker_job process: 
gdm-session-worker [pam/gdm-launch-environment] 
/usr/lib/gdm3/gdm-session-worker
août 22 18:38:48 my_strech_server.avignon.inra.fr kernel: Fusion MPT 
base driver 3.04.20
août 22 18:38:48 my_strech_server.avignon.inra.fr kernel: Copyright (c) 
1999-2008 LSI Corporation
août 22 18:38:48 my_strech_server.avignon.inra.fr kernel: Fusion MPT 
misc device (ioctl) driver 3.04.20
août 22 18:38:48 my_strech_server.avignon.inra.fr kernel: mptctl: 
Registered with Fusion MPT base driver
août 22 18:38:48 my_strech_server.avignon.inra.fr kernel: mptctl: 
/dev/mptctl @ (major,minor=10,220)
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSessionWorkerJob: : SessionWorkerJob on pid 3909
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: setting session to type 'wayland'
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmLocalDisplayFactory: display status changed: 1
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmManager: Accepting XDMCP connections...
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmXdmcpDisplayFactory: Start up on host 
my_strech_server.avignon.inra.fr, port 177
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmXdmcpDisplayFactory: addrinfo family=inet6 type=datagram proto=UDP 
flags=passive
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmXdmcpDisplayFactory: Attempting to bind to host :: port 177
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmXdmcpDisplayFactory: Starting to listen on XDMCP port
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: Enabling debugging
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: connecting to address: 
unix:abstract=/tmp/dbus-iKmiTHbX
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDBusServer: new connection 0x55e8946c1650
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Handling new connection from worker
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Authenticating new connection
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: calling 
'ListCachedUsers'
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: Failed to identify the 
current session: Aucun périphérique ou adresse
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: seat 
unloaded, so trying to set loaded property
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: Listing 
cached users, so not setting loaded property
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: Listing 
cached users, so not setting loaded property
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: worker connection is 0x55e8946c1650
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Emitting conversation-started signal
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Beginning setup for session for program using PAM service 
gdm-launch-environment
août 22 18:38:48 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Conversation started
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: attempting to change 
state to SETUP_COMPLETE
août 22 18:38:48 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: initializing PAM; 
service=gdm-launch-environment username=Debian-gdm seat=seat0
août 22 18:38:48 my_strech_server.avignon.inra.fr systemd[1]: Started 
Samba SMB Daemon.
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'XDG_SEAT=seat0'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'XDG_SESSION_CLASS=greeter'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: state SETUP_COMPLETE
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: 
ListCachedUsers finished, will set loaded property after list is fully 
loaded
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
new user with object path /org/freedesk
top/Accounts/User5446
...
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
new user with object path /org/freedesktop/Accounts/User5442
août 22 18:38:49 my_strech_server.avignon.inra.fr sfcb[3824]: Starting 
the small footprint CIM broker (SFCB):.
août 22 18:38:49 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: Start sfcb.
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
new user with object path /org/freedesktop/Accounts/User5441
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
new user with object path /org/freedesktop/Accounts/User5449
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: unrefing 
manager owned by finished ListCachedUsers call
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
first_user is now loaded
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
first_user was not yet known, adding it
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
user 'first_user'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: not yet 
loaded, so not emitting user-added signal
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: not all 
users loaded yet
...
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: not all 
users loaded yet
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
last_user is now loaded
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
last_user was not yet known, adding it
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
user 'last_user'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: not yet 
loaded, so not emitting user-added signal
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: no 
pending users, trying to set loaded property
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: Seat 
wouldn't load, so giving up on it and setting loaded property
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: sending 
user-changed signal for user last_user
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: sent 
user-changed signal for user last_user
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: updating 
user last_user
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: attempting to change 
state to AUTHENTICATED
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: authenticating user 
Debian-gdm
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: state AUTHENTICATED
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: attempting to change 
state to AUTHORIZED
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: determining if 
authenticated user (password required:0) is authorized to session
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: state AUTHORIZED
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: attempting to change 
state to ACCREDITED
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'LOGNAME=Debian-gdm'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'USER=Debian-gdm'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'USERNAME=Debian-gdm'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'HOME=/var/lib/gdm3'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'SHELL=/bin/false'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'PATH=/usr/local/bin:/usr/bin:/bin:/usr/games'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: state ACCREDITED
août 22 18:38:49 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: type wayland, program? yes, seat seat0
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: session display mode 
set to new-vt
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'XDG_SESSION_TYPE=wayland'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: attempting to change 
state to ACCOUNT_DETAILS_SAVED
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: user Debian-gdm, not 
fully loaded yet, will save account details later
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: trying 
to track new user with username Debian-gdm
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: finding 
user 'Debian-gdm' state 1
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: finding 
user 'Debian-gdm' state 2
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: Looking 
for user 'Debian-gdm' in accounts service
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: new user 
in accounts service with object path /org/freedesktop/Accounts/User114
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
new user with object path /org/freedesktop/Accounts/User114
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: Found 
object path of user 'Debian-gdm': /org/freedesktop/Accounts/User114
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: finding 
user 'Debian-gdm' state 3
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
'Debian-gdm' fetched
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: finished 
handling request for user 'Debian-gdm'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: unrefing 
manager owned by fetch user request
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
Debian-gdm is now loaded
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
Debian-gdm was not yet known, adding it
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: tracking 
user 'Debian-gdm'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: loaded, 
so emitting user-added signal
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: no 
pending users, trying to set loaded property
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: already 
loaded, so not setting loaded property
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: sending 
user-changed signal for user Debian-gdm
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: sent 
user-changed signal for user Debian-gdm
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: updating 
user Debian-gdm
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: user 
Debian-gdm is now loaded
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: sessions 
changed (user Debian-gdm) num=0
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: no 
pending users, trying to set loaded property
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: already 
loaded, so not setting loaded property
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionSettings: saved session is
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionSettings: saved language is
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: saving account details 
for user Debian-gdm
août 22 18:38:49 my_strech_server.avignon.inra.fr exim4[3815]: Starting 
MTA: exim4.
août 22 18:38:49 my_strech_server.avignon.inra.fr systemd[1]: Started 
LSB: exim Mail Transport Agent.
août 22 18:38:49 my_strech_server.avignon.inra.fr systemd[1]: Started 
The Apache HTTP Server.
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: Error calling GetAll() 
when retrieving properties for /org/freedesktop/Accounts/User114: 
L'opération a été annulée
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: Error calling GetAll() 
when retrieving properties for /org/freedesktop/Accounts/User114: 
L'opération a été annulée
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: attempting to change 
state to SESSION_OPENED
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'XDG_VTNR=1'
août 22 18:38:49 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: pam_unix(gdm-launch-environment:session): 
session opened for user Debian-gdm by (uid=0)
... avahi-daemon ...
août 22 18:38:50 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Activating via systemd: service name='org.freedesktop.ConsoleKit' 
unit='console-kit-daemon.service'
août 22 18:38:50 my_strech_server.avignon.inra.fr systemd[1]: Starting 
Console Manager...
août 22 18:38:50 my_strech_server.avignon.inra.fr udev-acl.ck[4355]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:38:50 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: missing action
août 22 18:38:50 my_strech_server.avignon.inra.fr dbus[3330]: [system] 
Successfully activated service 'org.freedesktop.ConsoleKit'
août 22 18:38:50 my_strech_server.avignon.inra.fr systemd[1]: Started 
Console Manager.
août 22 18:38:50 my_strech_server.avignon.inra.fr systemd[1]: Reloading 
OpenBSD Secure Shell server.
août 22 18:38:50 my_strech_server.avignon.inra.fr sshd[3438]: Received 
SIGHUP; restarting.
août 22 18:38:50 my_strech_server.avignon.inra.fr systemd[1]: Reloaded 
OpenBSD Secure Shell server.
août 22 18:38:50 my_strech_server.avignon.inra.fr sshd[3438]: Server 
listening on 0.0.0.0 port 22.
août 22 18:38:50 my_strech_server.avignon.inra.fr sshd[3438]: Server 
listening on :: port 22.
août 22 18:38:50 my_strech_server.avignon.inra.fr systemd[1]: Reloading 
OpenBSD Secure Shell server.
août 22 18:38:50 my_strech_server.avignon.inra.fr sshd[3438]: Received 
SIGHUP; restarting.
août 22 18:38:50 my_strech_server.avignon.inra.fr systemd[1]: Reloaded 
OpenBSD Secure Shell server.
août 22 18:38:50 my_strech_server.avignon.inra.fr sshd[3438]: Server 
listening on 0.0.0.0 port 22.
août 22 18:38:50 my_strech_server.avignon.inra.fr sshd[3438]: Server 
listening on :: port 22.
août 22 18:38:50 my_strech_server.avignon.inra.fr udev-acl.ck[4433]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-session-worker[3909]: Failed opening dbus connection: 
org.freedesktop.DBus.Error.FileNotFound: Failed to connect to socket 
/sys/fs/cgroup/cgmanager/sock: Aucun fichier ou dossier de ce type
août 22 18:38:50 my_strech_server.avignon.inra.fr PAM-CGM[3909]: Failed 
to connect to cgmanager
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: state SESSION_OPENED
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: sending 
user-changed signal for user Debian-gdm
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: sent 
user-changed signal for user Debian-gdm
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: AccountsService: ActUserManager: updating 
user Debian-gdm
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Emitting 'session-opened' signal
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Greeter session opened
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: session id:
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Stopping all conversations except for gdm-launch-environment
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: type wayland, program? yes, seat seat0
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: type wayland, program? yes, seat seat0
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'GDM_LANG=fr_FR.UTF-8'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'DCONF_PROFILE=gdm'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'HOME=/var/lib/gdm3'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'GDM_SEAT_ID=seat0'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'RUNNING_UNDER_GDM=true'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'GVFS_DISABLE_FUSE=1'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'XDG_CURRENT_DESKTOP=GNOME-Greeter:GNOME'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'LANG=fr_FR.UTF-8'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'LOGNAME=Debian-gdm'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'GVFS_REMOTE_VOLUME_MONITOR_IGNORE=1'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'GIO_USE_VFS=local'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'GDM_VERSION=3.22.3'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'GNOME_SHELL_SESSION_MODE=gdm'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'USERNAME=Debian-gdm'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'PWD=/var/lib/gdm3'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'USER=Debian-gdm'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 
'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 'SHELL=/bin/false'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: Set PAM environment 
variable: 
'XDG_DATA_DIRS=/usr/share/gdm/greeter:/usr/local/share/:/usr/share/'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: start program: 
/usr/lib/gdm3/gdm-wayland-session "gnome-session --autostart 
/usr/share/gdm/greeter/autostart --debug"
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: attempting to change 
state to SESSION_STARTED
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: opening session for 
program '/usr/lib/gdm3/gdm-wayland-session'
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: jumping to VT 1
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: first setting graphics 
mode to prevent flicker
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: VT mode did need to be 
fixed
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: session opened creating 
reply...
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: state SESSION_STARTED
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSession worker: watching pid 4434
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Emitting 'session-started' signal with pid '4434'
août 22 18:38:50 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Greeter started
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-wayland-session[4434]: Enabling debugging
août 22 18:38:50 my_strech_server.avignon.inra.fr 
gdm-wayland-session[4434]: Running session message bus
août 22 18:38:50 my_strech_server.avignon.inra.fr avahi-daemon[4262]: 
Server startup complete. Host name is my_strech_server.local. Local 
service cookie is 3175672092.
août 22 18:38:51 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[4434]: Activating service 
name='org.freedesktop.systemd1'
août 22 18:38:51 my_strech_server.avignon.inra.fr systemd-shim[4519]: 
Could not connect to cgmanager: Could not connect: No such file or directory
août 22 18:38:51 my_strech_server.avignon.inra.fr systemd-shim[4519]: 
Unable to acquire bus name 'org.freedesktop.systemd1'.  Quitting.
août 22 18:38:51 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[4434]: Activated service 
'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 
exited with status 1
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-wayland-session[4434]: could not fetch environment: 
GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process 
org.freedesktop.systemd1 exited with status 1
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-wayland-session[4434]: Running wayland session
août 22 18:38:51 my_strech_server.avignon.inra.fr sfcb[4162]: *** Failed 
to load libcmpiTunnelProvider.so for TunnelInterOpProvider
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmManager: trying to register new display
oût 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: GdmManager: 
Error while retrieving session id for sender: Error getting session id 
from systemd: Aucun périphérique ou adresse
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-wayland-session[4434]: Could not register display: 
GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Aucun affichage 
disponible
août 22 18:38:51 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[4434]: Unable to register display with 
display manager
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: child (pid:4434) done 
(status:70)
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: uninitializing PAM
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: pam_unix(gdm-launch-environment:session): 
session closed for user Debian-gdm
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-session-worker[3909]: Failed opening dbus connection: 
org.freedesktop.DBus.Error.FileNotFound: Failed to connect to socket 
/sys/fs/cgroup/cgmanager/sock: Aucun fichier ou dossier de ce type
août 22 18:38:51 my_strech_server.avignon.inra.fr 
gdm-launch-environment][3909]: GdmSessionWorker: state NONE
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: Emitting 'session-exited' signal with exit code '70'
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSession: stopping conversation gdm-launch-environment
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmSessionWorkerJob: Stopping job pid:3909
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: GdmCommon: 
sending signal 15 to process 3909
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Greeter exited: 70
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmLocalDisplayFactory: display status changed: 3
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplayStore: Unreffing display: 0x55e8946c1320
-> second loop begins ...
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmLocalDisplayFactory: Adding display on seat seat0
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: id: (null)
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: seat id: (null)
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: session class: greeter
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: initial: no
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: allow timed login: yes
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: local: yes
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: session type: wayland
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: seat id: seat0
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: initial: yes
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplayStore: Adding display 
/org/gnome/DisplayManager/Displays/94457410884640 to store
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Managing display: 
/org/gnome/DisplayManager/Displays/94457410884640
août 22 18:38:51 my_strech_server.avignon.inra.fr gdm3[3858]: 
GdmDisplay: Preparing display: 
/org/gnome/DisplayManager/Displays/94457410884640
...
...
août 22 18:40:57 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22048]: Activating service 
name='org.freedesktop.systemd1'
août 22 18:40:57 my_strech_server.avignon.inra.fr systemd-shim[22053]: 
Could not connect to cgmanager: Could not connect: No such file or directory
août 22 18:40:57 my_strech_server.avignon.inra.fr systemd-shim[22053]: 
Unable to acquire bus name 'org.freedesktop.systemd1'.  Quitting.
août 22 18:40:57 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22048]: Activated service 
'org.freedesktop.systemd1' failed: Process org.freed
esktop.systemd1 exited with status 1
août 22 18:40:57 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22048]: Unable to register display 
with display manager
août 22 18:40:57 my_strech_server.avignon.inra.fr 
gdm-launch-environment][22037]: 
pam_unix(gdm-launch-environment:session): session closed for user Debian-gdm
août 22 18:40:57 my_strech_server.avignon.inra.fr 
gdm-session-worker[22037]: Failed opening dbus connection: 
org.freedesktop.DBus.Error.FileNotFound: Failed to co
nnect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou dossier 
de ce type
août 22 18:40:57 my_strech_server.avignon.inra.fr udev-acl.ck[22071]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:40:57 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: console-kit-daemon[4279]: GLib-CRITICAL: 
Source ID 6526 was not found when attempting
to remove it
août 22 18:40:57 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: GLib-CRITICAL: Source ID 6526 was not found 
when attempting to remove it
août 22 18:40:57 my_strech_server.avignon.inra.fr gdm3[3858]: Child 
process -22048 was already dead.
août 22 18:40:57 my_strech_server.avignon.inra.fr gdm3[3858]: Child 
process 22037 was already dead.
août 22 18:40:57 my_strech_server.avignon.inra.fr gdm3[3858]: Unable to 
kill session worker process
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-launch-environment][22072]: 
pam_unix(gdm-launch-environment:session): session opened for user 
Debian-gdm by
(uid=0)
août 22 18:40:58 my_strech_server.avignon.inra.fr udev-acl.ck[22082]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-session-worker[22072]: Failed opening dbus connection: 
org.freedesktop.DBus.Error.FileNotFound: Failed to co
nnect to socket /sys/fs/cgroup/cgmanager/sock: Aucun fichier ou dossier 
de ce type
août 22 18:40:58 my_strech_server.avignon.inra.fr PAM-CGM[22072]: Failed 
to connect to cgmanager
août 22 18:40:58 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22083]: Activating service 
name='org.freedesktop.systemd1'
août 22 18:40:58 my_strech_server.avignon.inra.fr systemd-shim[22088]: 
Could not connect to cgmanager: Could not connect: No such file or directory
août 22 18:40:58 my_strech_server.avignon.inra.fr systemd-shim[22088]: 
Unable to acquire bus name 'org.freedesktop.systemd1'.  Quitting.
août 22 18:40:58 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22083]: Activated service 
'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 
exited with status 1
août 22 18:40:58 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22083]: Unable to register display 
with display manager
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-launch-environment][22072]: 
pam_unix(gdm-launch-environment:session): session closed for user Debian-gdm
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-session-worker[22072]: Failed opening dbus connection: 
org.freedesktop.DBus.Error.FileNotFound: Failed to connect to socket 
/sys/fs/cgroup/cgmanager/sock: Aucun fichier ou dossier de ce type
août 22 18:40:58 my_strech_server.avignon.inra.fr udev-acl.ck[22106]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:40:58 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: console-kit-daemon[4279]: GLib-CRITICAL: 
Source ID 6539 was not found when attempting to remove it
août 22 18:40:58 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: GLib-CRITICAL: Source ID 6539 was not found 
when attempting to remove it
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: Child 
process -22083 was already dead.
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: Child 
process 22072 was already dead.
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: Unable to 
kill session worker process
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-launch-environment][22107]: 
pam_unix(gdm-launch-environment:session): session opened for user 
Debian-gdm by (uid=0)
août 22 18:40:58 my_strech_server.avignon.inra.fr udev-acl.ck[22117]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-session-worker[22107]: Failed opening dbus connection: 
org.freedesktop.DBus.Error.FileNotFound: Failed to connect to socket 
/sys/fs/cgroup/cgmanager/sock: Aucun fichier ou dossier de ce type
août 22 18:40:58 my_strech_server.avignon.inra.fr PAM-CGM[22107]: Failed 
to connect to cgmanager
août 22 18:40:58 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22118]: Activating service 
name='org.freedesktop.systemd1'
août 22 18:40:58 my_strech_server.avignon.inra.fr systemd-shim[22123]: 
Could not connect to cgmanager: Could not connect: No such file or directory
août 22 18:40:58 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22118]: Activating service 
name='org.freedesktop.systemd1'
août 22 18:40:58 my_strech_server.avignon.inra.fr systemd-shim[22123]: 
Could not connect to cgmanager: Could not connect: No such file or directory
août 22 18:40:58 my_strech_server.avignon.inra.fr systemd-shim[22123]: 
Unable to acquire bus name 'org.freedesktop.systemd1'.  Quitting.
août 22 18:40:58 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22118]: Activated service 
'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 
exited with status 1
août 22 18:40:58 my_strech_server.avignon.inra.fr 
/usr/lib/gdm3/gdm-wayland-session[22118]: Unable to register display 
with display manager
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-launch-environment][22107]: 
pam_unix(gdm-launch-environment:session): session closed for user Debian-gdm
août 22 18:40:58 my_strech_server.avignon.inra.fr 
gdm-session-worker[22107]: Failed opening dbus connection: 
org.freedesktop.DBus.Error.FileNotFound: Failed to connect to socket 
/sys/fs/cgroup/cgmanager/sock: Aucun fichier ou dossier de ce type
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: Could not 
start command '/usr/lib/gdm3/gdm-session-worker': Trop de fichiers ouverts
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: GLib: 
g_child_watch_add_full: assertion 'pid > 0' failed
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: Child 
process -22118 was already dead.
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: Child 
process 22107 was already dead.
août 22 18:40:58 my_strech_server.avignon.inra.fr gdm3[3858]: Unable to 
kill session worker process
août 22 18:40:58 my_strech_server.avignon.inra.fr udev-acl.ck[22141]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:40:58 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: console-kit-daemon[4279]: GLib-CRITICAL: 
Source ID 6552 was not found when attempting to remove it
août 22 18:40:58 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: GLib-CRITICAL: Source ID 6552 was not found 
when attempting to remove it
--> no more lines till the connexion of root with ssh
août 22 18:43:24 my_strech_server.avignon.inra.fr sshd[22166]: Accepted 
password for root from 147.b.c.d port 39704 ssh2
août 22 18:43:24 my_strech_server.avignon.inra.fr sshd[22166]: 
pam_unix(sshd:session): session opened for user root by (uid=0)
août 22 18:43:24 my_strech_server.avignon.inra.fr udev-acl.ck[22172]: 
g_slice_set_config: assertion 'sys_page_size == 0' failed
août 22 18:43:24 my_strech_server.avignon.inra.fr 
console-kit-daemon[4279]: missing action
août 22 18:43:24 my_strech_server.avignon.inra.fr PAM-CGM[22166]: Failed 
to connect to cgmanager
--> last 3 errors probably because cgmanager.service is dead (why?). No 
more error after the restart of cgmanager.


2. For xdmcp requests from other X servers

On the workstation (Windows 7), a few seconds after having launched 
Cygwin/X with 'XWin:0 -query my_stretch_server ...', a window is 
displayed with the following message:
A fatal error has occured and Cygwin/X will now exit.
XDMCP fatal error: Session declined Maximum number of open sessions from 
your host reached.

With the same workstation, same tool and same method, I can open X 
sessions on a old Debian server (squeeze 6.0.7) using gdm (2.20.11-4) 
and xfce (4.6.2), and then connect with ssh -X to my_stretch_server.

On the server, I see only a few lines in /var/log/messages:
Aug 23 18:19:21 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:22 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:22 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:23 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:23 my_stretch_server gdm3: gdm_xdmcp_handle_manage: Got 
Manage from banned host 147.b.c.d
Aug 23 18:19:23 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:24 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:24 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:25 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:25 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:26 my_stretch_server gdm3: Unable to connect to display 
147.b.c.d:0
Aug 23 18:19:26 my_stretch_server gdm3: Unable to connect to display 
after 10 tries - bailing out
Aug 23 18:19:27 my_stretch_server gdm3: GdmXdmcpDisplayFactory: Failed 
to look up session ID 388766185

/var/log/syslog contains more messages, that could let think to the 
following scenario:
- GdmXdmcpDisplayFactory receives the query from 147.b.c.d and tries to 
create the xdmcp display
- GdmDisplay tries to prepare the display and to create the greeter for 
147.b.c.d
- GdmLaunchEnvironment starts and maybe fails (Unknown user Debian-gdm - 
gdm3: GLib-GObject: g_object_set: assertion 'G_IS_OBJECT (object)' failed)
- GdmDisplay tries 10 folds to open display 147.b.c.d:0 but fails (gdm3: 
Unable to connect to display 147.b.c.d:0)
- After these 10 trials gdm3 asks GdmDisplay to unmanage the display
- GdmXdmcpDisplayFactory sends REFUSE to the opened session and DECLINE 
to 147.b.c.d


What I get with systemctl -alb

août 23 18:19:19 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
août 23 18:19:19 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmAddress: looking up hostname: my_stretch_server.avignon.inra.fr
août 23 18:19:19 my_stretch_server.avignon.inra.fr gdm3[42904]: 
gdm_peek_local_address_list: Could not get address from hostname!
août 23 18:19:19 my_stretch_server.avignon.inra.fr gdm3[42904]: Address 
family:10 (inet6) host:147.b.c.d port:63862 local:0 loopback:0
août 23 18:19:19 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Received opcode QUERY from client 147.b.c.d : 63862
août 23 18:19:19 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Sending WILLING to 147.b.c.d
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: Address 
family:10 (inet6) host:147.b.c.d port:63862 local:0 loopback:0
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Received opcode REQUEST from client 147.b.c.d : 
63862
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Got REQUEST from 147.b.c.d
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: xdmcp_pending=0, MaxPending=4, xdmcp_sessions=0, 
MaxSessions=16, ManufacturerID=
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: display_dispose_check (147.b.c.d:0)
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Creating xdmcp display for 147.b.c.d:0
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Host 147.b.c.d not found
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: allow timed login: no
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: id: (null)
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: seat id: (null)
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: session class: greeter
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: initial: no
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: allow timed login: yes
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: local: no
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: Address 
family:10 (inet6) host:147.b.c.d port:63862 local:0 loopback:0
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Preparing display: 
/org/gnome/DisplayManager/Displays/94414382079776
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplayAccessFile: creating xauth directory 
/var/run/gdm3/auth-for-Debian-gdm-XXXXXX
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplayAccessFile: chowning /var/run/gdm3/auth-for-Debian-gdm-fU7kLv 
to 114:123
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplayAccessFile: creating 
/var/run/gdm3/auth-for-Debian-gdm-fU7kLv/database
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplayAccessFile: chowning 
/var/run/gdm3/auth-for-Debian-gdm-fU7kLv/database to 114:123
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplayAccessFile: chmoding /var/run/gdm3/auth-for-Debian-gdm-fU7kLv 
to 0711
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: prepare display
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplayStore: Adding display 
/org/gnome/DisplayManager/Displays/94414382079776 to store
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Sending authorization key for display 147.b.c.d:0
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: cookie len 16
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Sending ACCEPT to 147.b.c.d with SessionID=388766185
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: Address 
family:10 (inet6) host:147.b.c.d port:63862 local:0 loopback:0
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Received opcode MANAGE from client 147.b.c.d : 63862
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Got MANAGE from 147.b.c.d
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Got display=0, SessionID=388766185 
Class=MIT-unspecified from 147.b.c.d
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Looked up 147.b.c.d:0
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Host 147.b.c.d not found
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Host 147.b.c.d not found
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Managing display: 
/org/gnome/DisplayManager/Displays/94414382079776
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmSession: Creating D-Bus server for worker for session
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmSession: D-Bus server for workers listening on 
unix:abstract=/tmp/dbus-VR56x7YY
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmSession: Creating D-Bus server for greeters and such
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmSession: D-Bus server for greeters listening on 
unix:abstract=/tmp/dbus-XWEaEtjM
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmSession: Setting display device: (null)
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Running greeter
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Creating greeter for 147.b.c.d:0 147.b.c.d
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmLaunchEnvironment: Starting...
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmLaunchEnvironment: Unknown user Debian-gdm
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GLib-GObject: g_object_set: assertion 'G_IS_OBJECT (object)' failed
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmLocalDisplayFactory: display status changed: 2
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: xdmcp display status changed: 2
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:21 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:22 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:22 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:22 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:22 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: Address 
family:10 (inet6) host:147.b.c.d port:63862 local:0 loopback:0
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Received opcode MANAGE from client 147.b.c.d : 63862
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Got MANAGE from 147.b.c.d
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: warning: 
cannot open /etc/hosts.allow: Trop de fichiers ouverts
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: warning: 
cannot open /etc/hosts.deny: Trop de fichiers ouverts
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: 
gdm_xdmcp_handle_manage: Got Manage from banned host 147.b.c.d
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:23 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:24 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:24 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:24 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:24 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:25 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:25 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:25 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:25 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:26 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: Server is ready - opening display 147.b.c.d:0
août 23 18:19:26 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display 147.b.c.d:0
août 23 18:19:26 my_stretch_server.avignon.inra.fr gdm3[42904]: Unable 
to connect to display after 10 tries - bailing out
août 23 18:19:26 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmDisplay: unmanage display
août 23 18:19:26 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmLocalDisplayFactory: display status changed: 0
août 23 18:19:26 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: xdmcp display status changed: 0
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmAddress: looking up hostname: my_stretch_server.avignon.inra.fr
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
gdm_peek_local_address_list: Could not get address from hostname!
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: Address 
family:10 (inet6) host:147.b.c.d port:63862 local:0 loopback:0
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Received opcode MANAGE from client 147.b.c.d : 63862
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Got MANAGE from 147.b.c.d
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Got display=0, SessionID=388766185 
Class=MIT-unspecified from 147.b.c.d
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Failed to look up session ID 388766185
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Sending REFUSE to 388766185
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Host 147.b.c.d not found
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: Address 
family:10 (inet6) host:147.b.c.d port:63862 local:0 loopback:0
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Received opcode REQUEST from client 147.b.c.d : 
63862
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Got REQUEST from 147.b.c.d
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: xdmcp_pending=1, MaxPending=4, xdmcp_sessions=0, 
MaxSessions=16, ManufacturerID=
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Maximum number of open XDMCP sessions from host 
147.b.c.d reached
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Sending DECLINE to 147.b.c.d
août 23 18:19:27 my_stretch_server.avignon.inra.fr gdm3[42904]: 
GdmXdmcpDisplayFactory: Host 147.b.c.d not found



-- System Information:
Debian Release: 9.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/80 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) (ignored: 
LC_ALL set to fr_FR.UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8) 
(ignored: LC_ALL set to fr_FR.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gdm3 depends on:
ii  accountsservice                              0.6.43-1
ii  adduser                                      3.115
ii  dconf-cli                                    0.26.0-2+b1
ii  dconf-gsettings-backend                      0.26.0-2+b1
ii  debconf [debconf-2.0]                        1.5.61
ii  gir1.2-gdm-1.0                               3.22.3-3
ii  gnome-session [x-session-manager]            3.22.3-1
ii  gnome-session-bin                            3.22.3-1
ii  gnome-session-flashback [x-session-manager]  3.22.0-3
ii  gnome-settings-daemon                        3.22.2-2+deb9u2
ii  gnome-shell                                  3.22.3-3
ii  gnome-terminal [x-terminal-emulator]         3.22.2-1
ii  gsettings-desktop-schemas                    3.22.0-1
ii  libaccountsservice0                          0.6.43-1
ii  libaudit1                                    1:2.6.7-2
ii  libc6                                        2.24-11+deb9u1
ii  libcanberra-gtk3-0                           0.30-3
ii  libcanberra0                                 0.30-3
ii  libgdk-pixbuf2.0-0                           2.36.5-2
ii  libgdm1                                      3.22.3-3
ii  libglib2.0-0                                 2.50.3-2
ii  libglib2.0-bin                               2.50.3-2
ii  libgtk-3-0                                   3.22.11-1
ii  libkeyutils1                                 1.5.9-9
ii  libpam-modules                               1.1.8-3.6
ii  libpam-runtime                               1.1.8-3.6
ii  libpam-systemd                               232-25+deb9u1
ii  libpam0g                                     1.1.8-3.6
ii  librsvg2-common                              2.40.16-1+b1
ii  libselinux1                                  2.6-3+b1
ii  libsystemd0                                  232-25+deb9u1
ii  libwrap0                                     7.6.q-26
ii  libx11-6                                     2:1.6.4-3
ii  libxau6                                      1:1.0.8-1
ii  libxcb1                                      1.12-1
ii  libxdmcp6                                    1:1.1.2-3
ii  lsb-base                                     9.20161125
ii  metacity [x-window-manager]                  1:3.22.1-1
ii  mutter [x-window-manager]                    3.22.3-2
ii  policykit-1                                  0.105-18
ii  ucf                                          3.0036
ii  x11-common                                   1:7.7+19
ii  x11-xserver-utils                            7.7+7+b1
ii  xterm [x-terminal-emulator]                  327-2

Versions of packages gdm3 recommends:
ii  at-spi2-core    2.22.0-6
ii  desktop-base    9.0.2
ii  x11-xkb-utils   7.7+3+b1
ii  xserver-xephyr  2:1.19.2-1+deb9u1
ii  xserver-xorg    1:7.7+19
ii  zenity          3.22.0-1+b1

Versions of packages gdm3 suggests:
ii  gnome-orca            3.22.2-3
ii  libpam-gnome-keyring  3.20.0-3

-- Configuration Files:
/etc/gdm3/daemon.conf changed:
[daemon]
[security]
DisallowTCP = false
[xdmcp]
Enable = true
[chooser]
[debug]
Enable = true

/etc/pam.d/gdm-launch-environment
#%PAM-1.0
auth    requisite       pam_nologin.so
auth    required        pam_permit.so
@include common-account
session optional        pam_keyinit.so force revoke
session required        pam_limits.so
session required        pam_env.so readenv=1
session required        pam_env.so readenv=1 envfile=/etc/default/locale
@include common-session
@include common-password

/etc/pam.d/gdm-password
#%PAM-1.0
auth    requisite       pam_nologin.so
auth    required    pam_succeed_if.so user != root quiet_success
@include common-auth
auth    optional        pam_gnome_keyring.so
@include common-account
# SELinux needs to be the first session rule. This ensures that any
# lingering context has been cleared. Without this it is possible
# that a module could execute code in the wrong domain.
session [success=ok ignore=ignore module_unknown=ignore 
default=bad]        pam_selinux.so close
session required        pam_loginuid.so
# SELinux needs to intervene at login time to ensure that the process
# starts in the proper default security context. Only sessions which are
# intended to run in the user's context should be run after this.
session [success=ok ignore=ignore module_unknown=ignore 
default=bad]        pam_selinux.so open
session optional        pam_keyinit.so force revoke
session required        pam_limits.so
session required        pam_env.so readenv=1
session required        pam_env.so readenv=1 envfile=/etc/default/locale
@include common-session
session optional        pam_gnome_keyring.so auto_start
@include common-password

/etc/pam.d/common-session
#
# As of pam 1.0.1-6, this file is managed by pam-auth-update by default.
# To take advantage of this, it is recommended that you configure any
# local modules either before or after the default block, and use
# pam-auth-update to manage selection of other modules.  See
# pam-auth-update(8) for details.

# here are the per-package modules (the "Primary" block)
session    [default=1]            pam_permit.so
# here's the fallback if no module succeeds
session    requisite            pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
session    required            pam_permit.so
# and here are more per-package modules (the "Additional" block)
session    required    pam_unix.so
session    optional            pam_winbind.so
session    optional    pam_mount.so
session    optional            pam_ldap.so
session    optional            pam_ck_connector.so nox11
session    optional    pam_cgm.so -c freezer
# end of pam-auth-update config

-- debconf information:
* shared/default-x-display-manager: gdm3
  gdm3/daemon_name: /usr/sbin/gdm3

Message #10 received at 873199@bugs.debian.org (full text, mbox, reply):

From: Laurent Bigonville <bigon@debian.org>

To: Jean-Paul Bouchet <jean-paul.bouchet@inra.fr>

Cc: 873199@bugs.debian.org

Subject: Re: gdm3 fails to open X sessions on the console and on X servers using xdmcp (Stretch 9.1)

Date: Mon, 18 Sep 2017 09:24:25 +0200

tag 873199 + moreinfo
thanks

On Fri, 25 Aug 2017 15:07:07 +0200 Jean-Paul Bouchet 
<jean-paul.bouchet@inra.fr> wrote:
> Dear Maintainer,

Hi, Bonjour,

> A few months ago I met no difficulties to configure our debian Wheezy
> server to manage X sessions with gdm3, on the console and an a set of X
> servers (Windows PC with Cygwin/X) using xdmcp.
> I was unable to retrieve this functionality after a dist-upgrade to
> Jessie (cf. https://lists.debian.org/debian-user/2016/10/msg00437.html).
> I hoped that Stretch could permit me to retrieve it. The dist-upgrade
> from Jessie to Stretch was perfect but let unsolved our problems with 
gdm3.
> May be does it work on a fresh install ? On my upgraded server it
> doesn't and I fail to progress.
> I don't know whether the problems are due to wrong file permissions
> somewhere, wrong values for some parameters, or to problems on which I
> can't get a grip on, or even to the gdm3 package.
> They probably are not the same for the console and the xdmcp requests.
> Thank you to have a look at these lines that I have tried to select 
for you.

Could you check if libpam-systemd is installed and enabled in 
common-session pam file?

Regarding the "/sys/fs/cgroup/cgmanager" error, could you check that 
pam_cgm.so is NOT enabled in any pam services?

You could use "pam-auth-update" to update the pam config files.

Regards,

Laurent Bigonville

Message #17 received at 873199@bugs.debian.org (full text, mbox, reply):

From: Jean-Paul Bouchet <jean-paul.bouchet@inra.fr>

To: Laurent Bigonville <bigon@debian.org>

Cc: <873199@bugs.debian.org>

Subject: Re: gdm3 fails to open X sessions on the console and on X servers using xdmcp (Stretch 9.1)

Date: Tue, 19 Sep 2017 16:02:36 +0200

[Message part 1 (text/plain, inline)]

Dear maintainer,

Actually pam_systemd.so was lacking in /etc/pam.d/common-session.
PAM profiles activated with pam-auth-update were :
 * Unix authentification
 * Winbind NT/Active Directory authentification
 * Mount volumes for user
 * LDAP authentication
 0 Register user sessions in the systemd control group hierarchy
 * GNOME Keyring Daemon - Login keyring management
 * ConsoleKit Session Management
 * Create cgroups for user login sessions
 * Inheritable Capabilities Management
And so the content of common-session was :
session [default=1]                     pam_permit.so
session requisite                       pam_deny.so
session required                        pam_permit.so
session required        pam_unix.so
session optional                        pam_winbind.so
session optional        pam_mount.so
session optional                        pam_ldap.so
session optional                        pam_ck_connector.so nox11
session optional        pam_cgm.so -c freezer

I change activated PAM profiles with pam-auth-update :
 * Unix authentification
 * Winbind NT/Active Directory authentification
 * Mount volumes for user
 * LDAP authentication
 * Register user sessions in the systemd control group hierarchy
 * GNOME Keyring Daemon - Login keyring management
 0 ConsoleKit Session Management
 0 Create cgroups for user login sessions
 * Inheritable Capabilities Management

And now here is the content of /etc/pam.d/common-session :
session    [default=1]            pam_permit.so
session    requisite            pam_deny.so
session    required            pam_permit.so
session    required    pam_unix.so
session    optional            pam_winbind.so
session    optional    pam_mount.so
session    optional            pam_ldap.so
session    optional    pam_systemd.so

... and of common-session-noninteractive:
session [default=1]                     pam_permit.so
session requisite                       pam_deny.so
session required                        pam_permit.so
session required        pam_unix.so
session optional                        pam_winbind.so
session optional                        pam_ldap.so

Now pam_cgm.so is away from all files of /etc/pam.d and pam_systemd.so 
is optional in common-session, runuser-l and systemd-user.

After these modifications the server reboots.
Boot was traced correctly on the console in non-graphical mode till an 
attempt to display something (may be the greeter) in graphical mode 
which failed and blocked the chanel. Xorg.0.log was not updated at that 
state.
I toggled with Ctrl-Alt-F2, got the login prompt on tty2, logged as root 
and launched startx, which opened an operational Gnome Session. I closed 
it and retrieved the term opened by root on tty2. A new 
/var/log/Xorg.0.log was created.
A few minutes later, trying to get the greeter client from Cygwin/X in 
XDMCP mode, I got a panel with a XDMCP fatal error: Session declined. 
Maximum number of open sessions from your host reached.

I have tried to extract meaningful lines from /var/log/messages and 
/var/log/syslog (cf. attached file).

Many thanks for your help.

Jean-Paul Bouchet

[873199@bugs.debian.org_170919a_data.txt (text/plain, attachment)]

Message #26 received at 873199@bugs.debian.org (full text, mbox, reply):

From: Laurent Bigonville <bigon@debian.org>

To: Jean-Paul Bouchet <jean-paul.bouchet@inra.fr>, Jacques Lagnel <jacques.lagnel@inra.fr>

Cc: 873199@bugs.debian.org

Subject: Re: gdm3 fails to open X sessions on the console and on X servers using xdmcp (Stretch 9.1)

Date: Sat, 23 Sep 2017 13:08:20 +0200

tag 873199 + moreinfo confirmed fixed-upstream
thanks

Hi,

I've I believe backported the necessary patch for the 3.22 version

Could you please give the version 3.22.3-3+deb9u1 of the packages a try?

It's not in the archive yet, see 
https://people.debian.org/~bigon/gdm3_xdmcp_stretch/

Regards,

Laurent Bigonville

Message #37 received at 873199-submitter@bugs.debian.org (full text, mbox, reply):

From: Laurent Bigonville <bigon@debian.org>

To: control@bugs.debian.org

Cc: 873199-submitter@bugs.debian.org

Subject: closing 873199

Date: Wed, 04 Oct 2017 10:24:00 +0200

close 873199 3.26.1-1
thanks

This is fixed in 3.26.1-1 in unstable

Closing the bug report

Message #48 received at 873199-close@bugs.debian.org (full text, mbox, reply):

From: Laurent Bigonville <bigon@debian.org>

To: 873199-close@bugs.debian.org

Subject: Bug#873199: fixed in gdm3 3.22.3-3+deb9u1

Date: Wed, 29 Nov 2017 09:02:36 +0000

Source: gdm3
Source-Version: 3.22.3-3+deb9u1

We believe that the bug you reported is fixed in the latest version of
gdm3, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 873199@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Laurent Bigonville <bigon@debian.org> (supplier of updated gdm3 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Format: 1.8
Date: Sat, 23 Sep 2017 11:56:40 +0200
Source: gdm3
Binary: gdm3 libgdm1 libgdm-dev gir1.2-gdm-1.0
Architecture: source amd64
Version: 3.22.3-3+deb9u1
Distribution: stretch
Urgency: medium
Maintainer: Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>
Changed-By: Laurent Bigonville <bigon@debian.org>
Description:
 gdm3       - GNOME Display Manager
 gir1.2-gdm-1.0 - GObject introspection data for the GNOME Display Manager
 libgdm-dev - GNOME Display Manager (development files)
 libgdm1    - GNOME Display Manager (shared library)
Closes: 814989 873199
Changes:
 gdm3 (3.22.3-3+deb9u1) stretch; urgency=medium
 .
   * Backports a bunch of patches to fix XDMCP support including a potential
     cracher (Closes: #873199, #814989)
Checksums-Sha1:
 1b3ed4ba3e15152ebbbe5c5a8fcf07b6dda04402 2807 gdm3_3.22.3-3+deb9u1.dsc
 a7512bb0515b9040d2f7663a5cd54f00e5448f77 93500 gdm3_3.22.3-3+deb9u1.debian.tar.xz
 b8577c5c494b361f71a4f6c800f41e00ef14a5fe 1021668 gdm3-dbgsym_3.22.3-3+deb9u1_amd64.deb
 fcb7a238d8325e196f50b56c40a6302b7e4ae337 18122 gdm3_3.22.3-3+deb9u1_amd64.buildinfo
 ab1ec719cb3961435ab84190704179affa615eca 669536 gdm3_3.22.3-3+deb9u1_amd64.deb
 8c6150ae18e54979b53d4f636ad4e5f23005d4a3 45198 gir1.2-gdm-1.0_3.22.3-3+deb9u1_amd64.deb
 14b072711cef81870b5ae540fd0e8edeb997cd6e 55526 libgdm-dev_3.22.3-3+deb9u1_amd64.deb
 715ea27839fc53ac08c72b75a41892321ae56807 132146 libgdm1-dbgsym_3.22.3-3+deb9u1_amd64.deb
 87369f371ebbc11a809e699d7a724134d40fb5e3 81734 libgdm1_3.22.3-3+deb9u1_amd64.deb
Checksums-Sha256:
 887f4fc13a7ebae1682c48f57091c60cc3ad02e8ff5e3f327489919b391c2da5 2807 gdm3_3.22.3-3+deb9u1.dsc
 79dff30dbcf3b041a5cb139bacabfa49ae716f39792bb23acf28cf4a273c0ad9 93500 gdm3_3.22.3-3+deb9u1.debian.tar.xz
 f9583ed52b338b2d083c3e3c2d603b7029c068cf62cbbe82a6120fb8bbb81559 1021668 gdm3-dbgsym_3.22.3-3+deb9u1_amd64.deb
 b6e6f991f4990753f1f53f86b066aff96f7f9b574d03cb4817c68c964b6e87a9 18122 gdm3_3.22.3-3+deb9u1_amd64.buildinfo
 c30f86feb6b41bb63f36f8461758761f83b977c0854957de8a010bdcaf18ec11 669536 gdm3_3.22.3-3+deb9u1_amd64.deb
 7f7eea2c37d9fc4cf0af98ef2956566b35978c79f3f4dd264feab81ebe6bc3fc 45198 gir1.2-gdm-1.0_3.22.3-3+deb9u1_amd64.deb
 2f34a61c8dc50fa8a1ef0bd2f5ab9521847f7e795797fa8f6ded1e5bebad9cb1 55526 libgdm-dev_3.22.3-3+deb9u1_amd64.deb
 7d6f304475b9c4f5f04eb1540502025f070ef4010a47cc9eebf776a4549250c3 132146 libgdm1-dbgsym_3.22.3-3+deb9u1_amd64.deb
 551e90901b546a93615655a7a7e89ac10dd95f9b6d7ef755212681adb461eb69 81734 libgdm1_3.22.3-3+deb9u1_amd64.deb
Files:
 97e79691ffa60cdfe7c92921af9d4f61 2807 gnome optional gdm3_3.22.3-3+deb9u1.dsc
 ea0bfee85ead9c2d0e16ec2eaf888887 93500 gnome optional gdm3_3.22.3-3+deb9u1.debian.tar.xz
 6aa018eee9db686fcbd2867935497dbd 1021668 debug extra gdm3-dbgsym_3.22.3-3+deb9u1_amd64.deb
 6e88fd88727d14803a1b3456a5b59904 18122 gnome optional gdm3_3.22.3-3+deb9u1_amd64.buildinfo
 e3927caf37a3aa3a1726f9eaf1d0db32 669536 gnome optional gdm3_3.22.3-3+deb9u1_amd64.deb
 248474af8889c14ae38f70aa89249b55 45198 introspection optional gir1.2-gdm-1.0_3.22.3-3+deb9u1_amd64.deb
 977baa362e6739530793ec8db41a53ee 55526 libdevel optional libgdm-dev_3.22.3-3+deb9u1_amd64.deb
 f3f8b1973c16d3633c46453c7202d294 132146 debug extra libgdm1-dbgsym_3.22.3-3+deb9u1_amd64.deb
 5a1af0f5f5a039424e41223279bff237 81734 libs optional libgdm1_3.22.3-3+deb9u1_amd64.deb

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