.
Thread 3 (LWP 9078):
#0  0x00007f94231a73cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f942390315c in g_main_context_poll (n_fds=3, fds=0x7f940c0010c0, timeout=-1, context=0x7f941400ec60, priority=<optimized out>) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3995
        poll_func = 0x7f9423911550 <g_poll>
#2  g_main_context_iterate (context=0x7f941400ec60, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3696
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7f940c0010c0
        nfds = 3
#3  0x00007f942390363a in g_main_loop_run (loop=0x7f941400ebf0) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3895
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f94248260c6 in g_string_append_c_inline (c=-4 '\374', gstring=0x1000) at /build/buildd/glib2.0-2.35.8/./glib/gstring.h:172
No locals.
#5  _g_dbus_hexdump (data=0x7f941beb7930 "\005", len=0, indent=32660) at /build/buildd/glib2.0-2.35.8/./gio/gdbusprivate.c:88
        n = 591961982
        m = <optimized out>
        ret = 0x1000
#6  0x0000000000001000 in ?? ()
No symbol table info available.
#7  0xdc5fec0b8e3185ce in ?? ()
No symbol table info available.
#8  0xdc5f9c4c69ff85ce in ?? ()
No symbol table info available.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 9077):
#0  0x00007f94231a73cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f942390315c in g_main_context_poll (n_fds=1, fds=0x7f94140010e0, timeout=-1, context=0x12b2b90, priority=<optimized out>) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3995
        poll_func = 0x7f9423911550 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x12b2b90, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3696
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7f94140010e0
        nfds = 1
#3  0x00007f9423903284 in g_main_context_iteration (context=0x12b2b90, may_block=1) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3762
        retval = <optimized out>
#4  0x00007f941bebf57d in dconf_changeset_build_description (changeset=0x1000) at dconf-changeset.c:424
        this = 0x1 <Address 0x1 out of bounds>
        i = 0
        iter = {dummy1 = 0x0, dummy2 = 0x7f942561d060, dummy3 = 0x7fffdd707770, dummy4 = 4096, dummy5 = 0, dummy6 = 0xdc5fed0bae3185ce}
        first = 0x7f942561d060 "h\342a%\224\177"
        have_one = <optimized out>
        key = 0x2377dadd575185ce
        prefix_length = <optimized out>
        n_items = 32660
#5  dconf_changeset_describe (changeset=0x1000, prefix=0x0, paths=0x0, values=0x12b2b90) at dconf-changeset.c:517
        n_items = -579831952
#6  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 8989):
#0  gdk_property_change (window=0x0, property=0x68, type=0x4, format=32, mode=GDK_PROP_MODE_REPLACE, data=0x12866b0 "\204", nelements=10) at /build/buildd/gtk+3.0-3.6.4/./gdk/gdkwindow.c:11348
No locals.
#1  0x00007f9424f42e6d in _gtk_selection_request (widget=0x1382000, event=0x12b22e0) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkselection.c:2453
        data = {selection = 0x45, target = 0x81, type = 0x4, format = 32, data = 0x12866b0 "\204", length = 80, display = 0x1291020}
        items = 10
        display = <optimized out>
        info = 0x13f5d50
        tmp_list = <optimized out>
        i = <optimized out>
        selection_max_size = 262144
        __PRETTY_FUNCTION__ = "_gtk_selection_request"
#2  0x00007f9424ecf5ac in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x12595d0, return_value=0x7fffdd707e10, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x1259600) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmarshalers.c:130
        cc = <optimized out>
        data1 = <optimized out>
        data2 = <optimized out>
        callback = <optimized out>
        arg0 = 0x12b22e0
        args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffdd7080b0, reg_save_area = 0x7fffdd707ff0}}
        v_return = <optimized out>
        __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXEDv"
#3  0x00007f9423feaa37 in g_closure_add_marshal_guards (closure=0x7f9423fe8dd0 <g_byte_array_get_type+48>, pre_marshal_data=0xffffffff, pre_marshal_notify=0x0, post_marshal_data=<optimized out>, post_marshal_notify=<optimized out>) at /build/buildd/glib2.0-2.35.8/./gobject/gclosure.c:395
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_add_marshal_guards"
#4  0x00007f942391e56c in thread_memory_from_self () at /build/buildd/glib2.0-2.35.8/./glib/gslice.c:500
        tmem = <optimized out>
#5  g_slice_free1 (mem_size=230, mem_block=0x40000002) at /build/buildd/glib2.0-2.35.8/./glib/gslice.c:1087
        tmem = 0xe6
        ix = <optimized out>
        chunk_size = 19240400
        acat = 596913225
#6  0x0000000001259430 in ?? ()
No symbol table info available.
#7  0x00000000012595d0 in ?? ()
No symbol table info available.
#8  0x00007fffdd707e10 in ?? ()
No symbol table info available.
#9  0x00007fffdd707e90 in ?? ()
No symbol table info available.
#10 0x00007f9424004810 in handler_unref_R (handler=0x1382000, instance=0xe7, signal_id=3715137040) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:609
        _g_boolean_var_ = <optimized out>
        is_zero = <optimized out>
#11 handler_match_free1_R (instance=0xe7, node=0xa) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:482
        next = <error reading variable next (Cannot access memory at address 0x12)>
#12 g_signal_has_handler_pending (instance=0xe7, signal_id=<optimized out>, detail=<optimized out>, may_be_blocked=<optimized out>) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:2933
        mlist = 0xa
        has_pending = 1
        __PRETTY_FUNCTION__ = "g_signal_has_handler_pending"
#13 0x00007fffdd707e30 in ?? ()
No symbol table info available.
#14 0x0000000000000014 in ?? ()
No symbol table info available.
#15 0x0000000001382000 in ?? ()
No symbol table info available.
#16 0x0000000000000014 in ?? ()
No symbol table info available.
#17 0x0000000000000000 in ?? ()
No symbol table info available.