gnome-session crashed with SIGSEGV in gsm_systemd_prepare_shutdown()

[Matthew Lovibond]

Just logging in with the latest updates, this comes up every time.

Description: Ubuntu Trusty Tahr (development branch)
Release: 14.04

gnome-session:
  Installed: (none)
  Candidate: 3.9.90-0ubuntu12
  Version table:
     3.9.90-0ubuntu12 0
        500 http://gb.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

Not too sure how gnome-session is crashing if it isn't installed?

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: gnome-session-bin 3.9.90-0ubuntu12
ProcVersionSignature: Ubuntu 3.13.0-22.44-generic 3.13.8
Uname: Linux 3.13.0-22-generic x86_64
ApportVersion: 2.14-0ubuntu1
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Fri Apr 4 11:31:24 2014
ExecutablePath: /usr/bin/gnome-session
InstallationDate: Installed on 2014-03-20 (15 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140304)
ProcCmdline: gnome-session --session=ubuntu
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x414c89: mov 0x8(%rax),%rcx
 PC (0x00414c89) ok
 source "0x8(%rax)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%rcx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-session
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: gnome-session crashed with SIGSEGV in g_signal_emit_valist()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 gsm_systemd_prepare_shutdown (system=<optimized out>, restart=0) at gsm-systemd.c:850
 do_query_end_session_exit (manager=0x11f8100) at gsm-manager.c:4323
 end_phase (manager=manager@entry=0x11f8100) at gsm-manager.c:563
 _handle_end_session_dialog_response (logout_type=GSM_MANAGER_LOGOUT_SHUTDOWN, manager=0x11f8100) at gsm-manager.c:3366
 on_shell_end_session_dialog_confirmed_shutdown (shell=<optimized out>, manager=0x11f8100) at gsm-manager.c:3381

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.