Hello helboof, or anyone else affected,

Accepted gnome-session into bionic-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/gnome-
session/3.28.1-0ubuntu3 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: gnome-session (Ubuntu Bionic)
       Status: Triaged => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-session in Ubuntu.
https://bugs.launchpad.net/bugs/1720310

Title:
  unity-gnome-shell-migration.18.08.py crashed with signal 5 in
  g_object_new_valist() due to gnome-shell-extension-ubuntu-dock not
  installed

Status in gnome-session package in Ubuntu:
  Triaged
Status in gnome-session source package in Bionic:
  Fix Committed

Bug description:
  [Impact]

   * People having this particular setup:
     - removed ubuntu-desktop metapackage from their system
     - upgrading from 16.04 to 18.04 (or previously to 17.10) by manually 
editing /etc/apt/sources.lists without using do-release-upgrade (which 
reinstalls ubuntu-desktop).
  They end up with:
  - no ubuntu-dock installed
  - and consequentely, the settings migration script would trigger an apport 
dialog (crashing) due to lack of gsettings schema.
   * Even if this is an unsupported case (people shouldn't cowboy sources.list 
and use our upgrader tools), we can easily prevent this crash, ignoring 
settings migration in such a case.

  [Test Case]

   1. Install 16.04
   2. Remove ubuntu-desktop metapackage
   3. Change your sources.list from "xenial" to "bionic"
   4. apt update && apt full-upgrade
   5. Reboot and log into a new session once upgrade is done.
  -> you won't get the ubuntu-dock, but the session migration script shouldn't 
crash.

  [Regression Potential]

   * The script was crashing (even if there is no settings to migrate,
  so it was a no-op). We prevents gsettings to segfault by guarding for
  schema existence in the standard way.

  ------

  Upgrade...

  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: ubuntu-session 3.26.0-0ubuntu1
  ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
  Uname: Linux 4.10.0-35-generic x86_64
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Sep 29 08:15:13 2017
  ExecutablePath: 
/usr/share/session-migration/scripts/unity-gnome-shell-migration.18.08.py
  InstallationDate: Installed on 2017-09-25 (3 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  InterpreterPath: /usr/bin/python3.6
  ProcCmdline: /usr/bin/python3 
/usr/share/session-migration/scripts/unity-gnome-shell-migration.18.08.py
  ProcEnviron:
   LANGUAGE=ru
   PATH=(custom, user)
   XDG_RUNTIME_DIR=<set>
   LANG=ru_RU.UTF-8
   SHELL=/bin/bash
  Python3Details: /usr/bin/python3.6, Python 3.6.3rc1, python3-minimal, 
3.6.2-1ubuntu4
  PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 
2.7.14-2ubuntu1
  Signal: 5
  SourcePackage: gnome-session
  StacktraceTop:
   ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   g_object_new_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
  Title: unity-gnome-shell-migration.18.08.py crashed with signal 5 in 
g_object_new_valist()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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