.
Thread 3 (process 15189):
#0  0x00007ffab12ef85c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
No symbol table info available.
#1  0x00007ffab2ce1d2f in brasero_async_task_manager_thread (self=0xec12a0)
    at brasero-async-task-manager.c:249
	res = BRASERO_ASYNC_TASK_FINISHED
	result = <value optimized out>
	cancel = (GCancellable *) 0x1497030
	ctx = (BraseroAsyncTaskCtx *) 0x1588dd0
#2  0x00007ffaadc6bb84 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#3  0x00007ffab12ea9ca in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#4  0x00007ffaad75f6dd in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#5  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (process 15188):
#0  0x00007ffaad752f93 in *__GI___poll (fds=<value optimized out>, 
    nfds=<value optimized out>, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:87
	resultvar = <value optimized out>
	_a3 = -1
	_a2 = 2
	_a1 = 21207744
	oldtype = 0
	result = <value optimized out>
#1  0x00007ffaa2c8d41f in poll_func (ufds=0x1439ac0, nfds=2, timeout=-1, 
    userdata=0x1439e00) at pulse/thread-mainloop.c:75
	r = <value optimized out>
	__func__ = "poll_func"
	__PRETTY_FUNCTION__ = "poll_func"
#2  0x00007ffaa2c7cd86 in pa_mainloop_poll (m=0x1439d00)
    at pulse/mainloop.c:879
	__func__ = "pa_mainloop_poll"
	__PRETTY_FUNCTION__ = "pa_mainloop_poll"
#3  0x00007ffaa2c7e809 in pa_mainloop_iterate (m=0x1439d00, 
    block=<value optimized out>, retval=0x0) at pulse/mainloop.c:961
	r = <value optimized out>
	__func__ = "pa_mainloop_iterate"
	__PRETTY_FUNCTION__ = "pa_mainloop_iterate"
#4  0x00007ffaa2c7e8c0 in pa_mainloop_run (m=0x1439d00, retval=0x0)
    at pulse/mainloop.c:979
	r = <value optimized out>
#5  0x00007ffaa2c8d21b in thread (userdata=0x145b7c0)
    at pulse/thread-mainloop.c:94
	mask = {__val = {18446744067267100671, 
    18446744073709551615 <repeats 15 times>}}
#6  0x00007ffaa28450e8 in internal_thread_func (userdata=0x143a0d0)
    at pulsecore/thread-posix.c:72
	__func__ = "internal_thread_func"
	__PRETTY_FUNCTION__ = "internal_thread_func"
#7  0x00007ffab12ea9ca in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#8  0x00007ffaad75f6dd in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (process 15175):
#0  brasero_data_project_remove_node (self=0xffb900, node=0x0)
    at brasero-data-project.c:1289
	imported_sibling = <value optimized out>
	klass = <value optimized out>
#1  0x00007ffab2f54334 in brasero_track_data_cfg_remove (
    track=<value optimized out>, treepath=0x15a7670)
    at brasero-track-data-cfg.c:1976
	node = (BraseroFileNode *) 0x0
	__PRETTY_FUNCTION__ = "brasero_track_data_cfg_remove"
#2  0x0000000000442b78 in brasero_data_disc_delete_selected (
    disc=<value optimized out>) at brasero-data-disc.c:1238
	treepath = (GtkTreePath *) 0x15a7670
	priv = (BraseroDataDiscPrivate *) 0x1181280
	selection = <value optimized out>
	cursorpath = (GtkTreePath *) 0x15a8770
	list = <value optimized out>
	iter = (GList *) 0x159ea60
#3  0x0000000000442cc0 in brasero_data_disc_key_released_cb (
    tree=<value optimized out>, event=0x15b1710, self=0x11811f0)
    at brasero-data-disc.c:2210
No locals.
#4  0x00007ffab04720b8 in _gtk_marshal_BOOLEAN__BOXED (closure=0x1316bf0, 
    return_value=0x7fff67f53990, n_param_values=<value optimized out>, 
    param_values=0x15b9160, invocation_hint=<value optimized out>, 
    marshal_data=0x442c50)
    at /build/buildd/gtk+2.0-2.20.0/gtk/gtkmarshalers.c:84
	data1 = (gpointer) 0x130e3d0
	data2 = (gpointer) 0x78
	v_return = <value optimized out>
	__PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXED"
#5  0x00007ffaae4ff5de in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#6  0x00007ffaae513598 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#7  0x00007ffaae5148b9 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#8  0x00007ffaae515033 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007ffab0588e9f in gtk_widget_event_internal (widget=0x130e3d0, 
    event=0x15b1710) at /build/buildd/gtk+2.0-2.20.0/gtk/gtkwidget.c:4951
	signal_num = <value optimized out>
	return_val = 0
#10 0x00007ffab05993bb in IA__gtk_window_propagate_key_event (
    window=0xec22a0, event=0x15b1710)
    at /build/buildd/gtk+2.0-2.20.0/gtk/gtkwindow.c:5184
	parent = (GtkWidget *) 0x159e320
	handled = 0
	focus = (GtkWidget *) 0x130e3d0
	__PRETTY_FUNCTION__ = "IA__gtk_window_propagate_key_event"
#11 0x00007ffab05993f9 in gtk_window_key_release_event (widget=0x147e900, 
    event=0x0) at /build/buildd/gtk+2.0-2.20.0/gtk/gtkwindow.c:5232
	handled = <value optimized out>
#12 0x00007ffab04720b8 in _gtk_marshal_BOOLEAN__BOXED (closure=0xf10720, 
    return_value=0x7fff67f53e50, n_param_values=<value optimized out>, 
    param_values=0x159e320, invocation_hint=<value optimized out>, 
    marshal_data=0x7ffab05993e0)
    at /build/buildd/gtk+2.0-2.20.0/gtk/gtkmarshalers.c:84
	data1 = (gpointer) 0xec22a0
	data2 = (gpointer) 0x78
	v_return = <value optimized out>
	__PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXED"
#13 0x00007ffaae4ff5de in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#14 0x00007ffaae5131dd in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#15 0x00007ffaae5148b9 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#16 0x00007ffaae515033 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#17 0x00007ffab0588e9f in gtk_widget_event_internal (widget=0xec22a0, 
    event=0x15b1710) at /build/buildd/gtk+2.0-2.20.0/gtk/gtkwidget.c:4951
	signal_num = <value optimized out>
	return_val = 0
#18 0x00007ffab046a654 in IA__gtk_propagate_event (widget=0xec22a0, 
    event=0x15b1710) at /build/buildd/gtk+2.0-2.20.0/gtk/gtkmain.c:2421
	window = (GtkWidget *) 0xec22a0
	handled_event = <value optimized out>
	__PRETTY_FUNCTION__ = "IA__gtk_propagate_event"
#19 0x00007ffab046b65b in IA__gtk_main_do_event (event=0x15b1710)
    at /build/buildd/gtk+2.0-2.20.0/gtk/gtkmain.c:1647
	event_widget = (GtkWidget *) 0x0
	grab_widget = (GtkWidget *) 0xec22a0
	window_group = (GtkWindowGroup *) 0x1446000
	rewritten_event = (GdkEvent *) 0x0
	tmp_list = <value optimized out>
	__PRETTY_FUNCTION__ = "IA__gtk_main_do_event"
#20 0x00007ffab00df80c in gdk_event_dispatch (source=<value optimized out>, 
    callback=<value optimized out>, user_data=<value optimized out>)
    at /build/buildd/gtk+2.0-2.20.0/gdk/x11/gdkevents-x11.c:2372
	display = <value optimized out>
	event = <value optimized out>
#21 0x00007ffaadc428c2 in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#22 0x00007ffaadc46748 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#23 0x00007ffaadc46c55 in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#24 0x00007ffab046baf7 in IA__gtk_main ()
    at /build/buildd/gtk+2.0-2.20.0/gtk/gtkmain.c:1219
	tmp_list = (GList *) 0x142b050
	functions = (GList *) 0x0
	init = (GtkInitFunction *) 0x1023000
	loop = <value optimized out>
#25 0x000000000044b894 in brasero_app_run_mainwin (app=0x1023000)
    at brasero-app.c:1848
	uapp = (UniqueApp *) 0x142b050
#26 0x00000000004217ec in main (argc=1, argv=0x7fff67f544a8) at main.c:437
	context = <value optimized out>