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[Sebastien Bacher <seb128@xxxxxxxxxx>]

** Changed in: indicator-messages (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1065169

Title:
  segfault when used in plugin load, unload, load cycle

Status in The Messaging Menu:
  Fix Released
Status in “indicator-messages” package in Ubuntu:
  Fix Released
Status in “indicator-messages” source package in Quantal:
  Fix Committed

Bug description:
  Impact:
  libmessaging-menu using apps can segfault when unloading and reloading code

  Test Case:
  - download the file from comment #1
  - gcc test-app.c -o test `pkg-config --cflags --libs messaging-menu`
  - run ./test

  with the fixed version it shouldn't segfault

  Regression Potential:
  Limited, check that the usecase is correctly supported

  ---
  I've been experimenting with adding messaging-menu support to an app through a plugin, and I've noticed errors/crashing when recreating the MessagingMenuApp object after having g_object_unref'd it, as in the situation where the user unloads the plugin, then loads it again.

  This is the error, which follows from pressing 'Plugin Load', 'Plugin
  Unload', 'Plugin Load' in the test application:

  ** (test-app:3805): WARNING **: unable to export action group: An
  object is already exported for the interface org.gtk.Actions at
  /com/canonical/indicator/messages/test_app_desktop

  (test-app:3805): GLib-GIO-CRITICAL **:
  g_dbus_connection_register_object: assertion `error == NULL || *error
  == NULL' failed

  ** (test-app:3805): WARNING **: unable to export menu: (null)

  I would include a stack trace but it is not consistent, so I suspect
  some sort of memory corruption (sometimes it doesn't crash at all,
  just spins at 100% and brings down compiz). I'm going to take a look
  at indicator-messages and see if I notice anything but I thought I'd
  post the bug first, maybe someone could immediately tell what the
  issue is, or suggest a fix in my code if I am not freeing the object
  correctly before recreating it.

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