Comment 2 for bug 1188518

hum, I got that one as well, (sorry lack dbg for unity):

let me know if that should go to another report

"#0 0xb700db0e in g_type_check_instance_is_a (
    type_instance=type_instance@entry=0x8f37a70,
    iface_type=iface_type@entry=80)
    at /build/buildd/glib2.0-2.37.1/./gobject/gtype.c:3975
#1 0xb6fee2f5 in g_object_unref (_object=0x8f37a70)
    at /build/buildd/glib2.0-2.37.1/./gobject/gobject.c:3081
#2 0xb1f7e806 in unity::bamf::Application::~Application() ()
   from /usr/lib/compiz/libunityshell.so
#3 0xb1dcd718 in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() () from /usr/lib/compiz/libunityshell.so
#4 0xb1e52ef3 in unity::launcher::ApplicationLauncherIcon::~ApplicationLauncherIcon() () from /usr/lib/compiz/libunityshell.so
#5 0xb1e52f4c in unity::launcher::ApplicationLauncherIcon::~ApplicationLauncherIcon() () from /usr/lib/compiz/libunityshell.so
#6 0xb23ea050 in nux::Object::Destroy() ()
   from /usr/lib/i386-linux-gnu/libnux-core-4.0.so.0
#7 0xb23eabc2 in nux::Object::UnReference() ()
   from /usr/lib/i386-linux-gnu/libnux-core-4.0.so.0
#8 0xb1e25d89 in ?? () from /usr/lib/compiz/libunityshell.so
#9 0xb13a796e in unity::glib::Source::DestroyCallback(void*) ()
   from /usr/lib/libunity-core-6.0.so.5
#10 0xb70f7388 in g_source_callback_unref (cb_data=0x80fb250)
    at /build/buildd/glib2.0-2.37.1/./glib/gmain.c:1545
#11 0xb70f795f in g_source_destroy_internal (source=source@entry=0x91045b8,
    context=context@entry=0x80d2188, have_lock=have_lock@entry=1)
    at /build/buildd/glib2.0-2.37.1/./glib/gmain.c:1204
#12 0xb70fa62a in g_main_dispatch (context=0x80d2188, context@entry=0x80cd958)
    at /build/buildd/glib2.0-2.37.1/./glib/gmain.c:3082
#13 g_main_context_dispatch (context=context@entry=0x80d2188)
    at /build/buildd/glib2.0-2.37.1/./glib/gmain.c:3634
#14 0xb70fa978 in g_main_context_iterate (context=0x80d2188,
    block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at /build/buildd/glib2.0-2.37.1/./glib/gmain.c:3705
#15 0xb70faddb in g_main_loop_run (loop=0x80d1f48)
    at /build/buildd/glib2.0-2.37.1/./glib/gmain.c:3899
#16 0xb7200273 in Glib::MainLoop::run() ()
   from /usr/lib/i386-linux-gnu/libglibmm-2.4.so.1
#17 0xb76af46a in compiz::private_screen::EventManager::startEventLoop(_XDisplay*) () from /usr/lib/libcompiz_core.so.ABI-20130125
#18 0xb76af4b4 in CompScreenImpl::eventLoop() ()
   from /usr/lib/libcompiz_core.so.ABI-20130125
"