Bug#801354: libpam-systemd: breaks lightdm: Failed to create session: Connection timed out

[Steve Frécinaux]

Package: libpam-systemd
Version: 227-1
Followup-For: Bug #801354

Dear Maintainer,

I am experiencing a similar issue with gdm3 and the same version of libpam-
systemd.

I updated systemd yesterday, and today while booting my computer I faced a
"blank" gdm3 screen. Blank here means that I have the top bar with the menus
and the debian logo at the bottom, but no button to select any account for
logging in. Switching to a text console, logging in and running startx somewhat
works but the login takes ages.

The only seemingly relevant error message in the logs is the following one,
which made me think it's the same issue as this bug:

Oct 09 08:32:22 six gdm-launch-environment][2426]: pam_systemd(gdm-launch-
environment:session): Failed to create session: Connection timed out

I also have the same umount errors but I didn't really think it was related...

Oct 09 08:31:57 six umount[2442]: umount: /proc/sys/fs/binfmt_misc: umount
failed: Operation not permitted
Oct 09 08:31:57 six umount[2446]: umount: /dev/mqueue: umount failed: Operation
not permitted
Oct 09 08:31:57 six systemd[2435]: dev-dm\x2d2.swap: Swap process exited,
code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Deactivated swap /dev/dm-2.
Oct 09 08:31:57 six systemd[2435]: dev-dm\x2d2.swap: Unit entered failed state.
Oct 09 08:31:57 six systemd[2435]: proc-sys-fs-binfmt_misc.mount: Mount process
exited, code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /proc/sys/fs/binfmt_misc.
Oct 09 08:31:57 six systemd[2435]: dev-mqueue.mount: Mount process exited,
code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /dev/mqueue.
Oct 09 08:31:57 six systemd[2435]: sys-kernel-debug.mount: Mount process
exited, code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /sys/kernel/debug.
Oct 09 08:31:57 six umount[2447]: umount: /sys/kernel/debug: umount failed:
Operation not permitted
Oct 09 08:31:57 six umount[2443]: umount: /dev/hugepages: umount failed:
Operation not permitted
Oct 09 08:31:57 six systemd[2435]: dev-hugepages.mount: Mount process exited,
code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /dev/hugepages.
Oct 09 08:31:57 six umount[2448]: umount: /run/rpc_pipefs: umount failed:
Operation not permitted
Oct 09 08:31:57 six umount[2449]: umount: /run/user/113: umount failed:
Operation not permitted
Oct 09 08:31:57 six systemd[2435]: run-user-113.mount: Mount process exited,
code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /run/user/113.
Oct 09 08:31:57 six systemd[2435]: run-rpc_pipefs.mount: Mount process exited,
code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /run/rpc_pipefs.
Oct 09 08:31:57 six umount[2444]: umount: /boot/efi: umount failed: Operation
not permitted
Oct 09 08:31:57 six systemd[2435]: boot-efi.mount: Mount process exited,
code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /boot/efi.
Oct 09 08:31:57 six systemd[2435]: Unmounting /boot...
Oct 09 08:31:57 six umount[2457]: umount: /boot: umount failed: Operation not
permitted
Oct 09 08:31:57 six systemd[2435]: boot.mount: Mount process exited,
code=exited status=1
Oct 09 08:31:57 six systemd[2435]: Failed unmounting /boot.



-- System Information:
Debian Release: stretch/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libpam-systemd depends on:
ii  dbus            1.10.0-3
ii  libacl1         2.2.52-2
ii  libc6           2.19-22
ii  libcap2         1:2.24-12
ii  libgcrypt20     1.6.3-2
ii  liblzma5        5.1.1alpha+20120614-2.1
ii  libpam-runtime  1.1.8-3.1
ii  libpam0g        1.1.8-3.1
ii  libseccomp2     2.2.3-2
ii  libselinux1     2.3-2+b1
ii  systemd         227-1
ii  systemd-sysv    227-1

libpam-systemd recommends no packages.

libpam-systemd suggests no packages.

-- no debconf information