** Description changed:
+ [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
+ 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
+ ?? () 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
** Also affects: gnome-session (Ubuntu Bionic)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Ubuntu
Desktop Bugs, 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
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