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** Attachment added: "Stacktrace.txt"
   https://bugs.launchpad.net/bugs/1525435/+attachment/4533463/+files/Stacktrace.txt

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https://bugs.launchpad.net/bugs/1525435

Title:
  Connecting to GDM via XDMCP crashes it

Status in gdm package in Ubuntu:
  New

Bug description:
  I've enabled XDMCP in GDM, and created an xinetd service for VNC via
  XDMCP.

  Any time I try to connect via VNC, gdm crashes, taking down the local display as well.
  After that, gdm won't start again until I kill the "orphaned" local display.

  It looks like the fix is a single-line change:
  https://bugzilla.gnome.org/show_bug.cgi?id=757714

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: gdm 3.16.2-0ubuntu2
  Uname: Linux 4.4.0-040400rc4-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CrashCounter: 1
  Date: Fri Dec 11 15:24:52 2015
  ExecutablePath: /usr/sbin/gdm
  InstallationDate: Installed on 2011-07-12 (1613 days ago)
  InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426)
  ProcCmdline: /usr/sbin/gdm
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
  Signal: 5
  SourcePackage: gdm
  StacktraceTop:
   g_type_create_instance (type=14342800) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gtype.c:1816
   g_object_constructor (type=<optimized out>, n_construct_properties=13, construct_params=0xdadb90) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:2064
   ()
   g_object_new_internal (n_params=6, params=0x7fff444e5fd0, class=0xdaa6a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:1697
   g_object_new_internal (class=class@entry=0xdaa6a0, params=params@entry=0x7fff444e5fd0, n_params=n_params@entry=6) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:1777
  Title: gdm crashed with signal 5 in g_type_create_instance()
  UpgradeStatus: Upgraded to wily on 2015-11-07 (34 days ago)
  UserGroups: pulse-access
  mtime.conffile..etc.gdm.custom.conf: 2015-12-11T15:11:59.227422

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