.
Thread 1 (process 2700):
#0  XQueryExtension (dpy=0x0, name=0x80627f2 "DAMAGE", 
    major_opcode=0xbfce10ec, first_event=0x806c394, first_error=0xbfce10e8)
    at ../../src/QuExt.c:46
	rep = {type = 1 '\001', pad1 = 0 '\0', sequenceNumber = 0, 
  length = 134523820, present = 132 '\204', major_opcode = 160 ' ', 
  first_event = 6 '\006', first_error = 8 '\b', pad3 = 0, pad4 = 10618564, 
  pad5 = 149266432, pad6 = 149481764, pad7 = 0}
#1  0x08060401 in gmag_gs_use_damage () at x11/gmag-graphical-server.c:444
	major = 149266432
	error = 10746651
#2  0x08060589 in gmag_gs_use_compositor (magnifier=0x8e5a000)
    at x11/gmag-graphical-server.c:467
	major = 3809732
	event = 1
	error = 149481764
#3  0x08051e52 in magnifier_init_window (magnifier=0x8e5a000, 
    screen=0x53d03d0) at magnifier.c:1683
	mag_win_type = GTK_WINDOW_TOPLEVEL
#4  0x08054bf4 in magnifier_init (magnifier=0x8e5a000) at magnifier.c:1737
No locals.
#5  0x003a83bf in IA__g_type_create_instance (type=149264736)
    at /build/buildd/glib2.0-2.21.6/gobject/gtype.c:1674
	node = (TypeNode *) 0x8e59960
	instance = (GTypeInstance *) 0x8e5a000
	class = (GTypeClass *) 0x8e59a18
	i = 0
	total_size = <value optimized out>
#6  0x0038bd38 in g_object_constructor (type=149264736, 
    n_construct_properties=1, construct_params=0x8e59b08)
    at /build/buildd/glib2.0-2.21.6/gobject/gobject.c:1338
	object = (GObject *) 0xd1e009
#7  0x009e0991 in bonobo_object_constructor (type=149264736, 
    n_construct_properties=1, construct_properties=0x8e59b08)
    at bonobo-object.c:820
	g_object = <value optimized out>
#8  0x0038c8cc in IA__g_object_newv (object_type=149264736, n_parameters=0, 
    parameters=0x0) at /build/buildd/glib2.0-2.21.6/gobject/gobject.c:1215
	nqueue = (GObjectNotifyQueue *) 0xbfce142c
	object = <value optimized out>
	class = (GObjectClass *) 0x8e59a18
	unref_class = (GObjectClass *) 0x0
	slist = <value optimized out>
	n_total_cparams = <value optimized out>
	n_cparams = 0
	n_oparams = 0
	n_cvalues = <value optimized out>
	clist = (GList *) 0x0
	newly_constructed = 149265168
	i = <value optimized out>
	__PRETTY_FUNCTION__ = "IA__g_object_newv"
#9  0x0038d502 in IA__g_object_new_valist (object_type=149264736, 
    first_property_name=0x0, 
    var_args=0xbfce1578 "\230\025οôü\005\001p\026οt\026οp\026ο4ÐÝ\bøxÞ\b,\026οh\026ο\"û\004\b") at /build/buildd/glib2.0-2.21.6/gobject/gobject.c:1278
	params = (GParameter *) 0xd32ff4
	name = <value optimized out>
	object = <value optimized out>
	n_params = <value optimized out>
	n_alloced_params = 1
	__PRETTY_FUNCTION__ = "IA__g_object_new_valist"
#10 0x0038d67e in IA__g_object_new (object_type=149264736, 
    first_property_name=0x0)
    at /build/buildd/glib2.0-2.21.6/gobject/gobject.c:1060
	__PRETTY_FUNCTION__ = "IA__g_object_new"
#11 0x08052a06 in magnifier_new (override_redirect=0) at magnifier.c:1789
	mag = <value optimized out>
	helper = <value optimized out>
#12 0x0804fb22 in main (argc=3, argv=0xbfce1714) at magnifier-main.c:434
	context = (GOptionContext *) 0x8de78f8
	viewport_any = <value optimized out>
	x = 4096
	y = <value optimized out>
	src_width = 1
	src_height = 0
	pan_handle = <value optimized out>
	refresh_handle = <value optimized out>
	ev = {_id = 0x0, _major = 0, _any = {_type = 0x0, _value = 0x0, 
    _release = 0 '\0'}}
	properties = <value optimized out>
	magnifier = <value optimized out>