.
Thread 3 (Thread 0x7f967b9aa700 (LWP 13909)):
#0  0x00007f969c970dc3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007f969ceabf26 in g_main_context_poll (n_fds=1, fds=0x7f96740010e0, timeout=-1, context=0x7f96a08017e0, priority=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3412
        poll_func = 0x7f969ceb8e80 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f96a08017e0, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3113
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7f96740010e0
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7f96a08017e0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3055
        some_ready = 1946161376
#4  0x00007f969ceac38a in g_main_loop_run (loop=0x7f96740010c0) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3312
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007f967b9af75b in dconf_context_thread (data=0x7f96a08017e0) at dconfcontext.c:11
        context = 0x7f96a08017e0
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#6  0x00007f969cecd5c5 in g_thread_proxy (data=0x7f96a07b7990) at /build/buildd/glib2.0-2.31.16/./glib/gthread.c:801
        thread = 0x7f96a07b7990
#7  0x00007f969cc4ee9a in start_thread (arg=0x7f967b9aa700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f967b9aa700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6267061167053744897, 140733503481472, 140284295555520, 0, 3, 6208803793530639615, 6209290275406075135}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f969c97c77d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7f9680910700 (LWP 13906)):
#0  0x00007f969c970dc3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007f969ceabf26 in g_main_context_poll (n_fds=3, fds=0x7f967c0010c0, timeout=-1, context=0x7f96a05a8100, priority=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3412
        poll_func = 0x7f969ceb8e80 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f96a05a8100, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3113
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7f967c0010c0
        max_priority = 2147483647
        nfds = 3
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7f96a05a8100, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3055
        some_ready = 2080379072
#4  0x00007f969ceac38a in g_main_loop_run (loop=0x7f96a065abe0) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3312
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007f969d476e46 in gdbus_shared_thread_func (user_data=0x7f96a064edc0) at /build/buildd/glib2.0-2.31.16/./gio/gdbusprivate.c:276
        data = 0x7f96a064edc0
#6  0x00007f969cecd5c5 in g_thread_proxy (data=0x7f96a05c1940) at /build/buildd/glib2.0-2.31.16/./glib/gthread.c:801
        thread = 0x7f96a05c1940
#7  0x00007f969cc4ee9a in start_thread (arg=0x7f9680910700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f9680910700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6267061167053744897, 140733503482272, 140284378810816, 0, 3, 6209316216415048959, 6209290275406075135}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f969c97c77d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7f969f179940 (LWP 13902)):
#0  g_type_check_instance_cast (type_instance=0xffffffffa08a02f0, iface_type=140284909527472) at /build/buildd/glib2.0-2.31.16/./gobject/gtype.c:3993
No locals.
#1  0x00007f969e9fa455 in create_cell (treeview=0x7f96a0894380, accessible=0x7f96a075d690, tree=0x7f96a04417f0, node=0x7f96a043e6c0, column=0xffffffffa08a02f0) at /build/buildd/gtk+3.0-3.3.14/./gtk/a11y/gtktreeviewaccessible.c:369
        renderer = <optimized out>
        parent = <optimized out>
        renderer_list = <optimized out>
        l = <optimized out>
        container = 0x0
        cell = <optimized out>
#2  0x00007f969e9fd092 in _gtk_tree_view_accessible_add_state (treeview=0x7f96a0894380, tree=0x7f96a04417f0, node=0x7f96a043e6c0, state=<optimized out>) at /build/buildd/gtk+3.0-3.3.14/./gtk/a11y/gtktreeviewaccessible.c:1894
        cell = 0x0
        focus_column = 0xffffffffa08a02f0
        accessible = 0x7f96a075d690
        obj = <optimized out>
        i = <optimized out>
#3  0x00007f969e978849 in gtk_tree_view_real_set_cursor (tree_view=0x7f96a0894380, path=0x7f96a0602b10, flags=<optimized out>) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtktreeview.c:13305
        new_tree = 0x7f96a04417f0
        new_node = 0x7f96a043e6c0
#4  0x00007f969e97bafb in gtk_tree_view_row_deleted (model=<optimized out>, path=<optimized out>, data=0x7f96a0894380) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtktreeview.c:9139
        cursor_path = 0x7f96a0602b10
        tree_view = 0x7f96a0894380
        tree = 0x7f96a04417f0
        node = 0x7f96a043e680
        list = <optimized out>
        selection_changed = 1
        cursor_changed = 1
        cursor_tree = 0x7f96a04417f0
        cursor_node = 0x7f96a043e6c0
        context = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_tree_view_row_deleted"
#5  0x00007f969d166384 in g_closure_invoke (closure=0x7f96a08c0cf0, return_value=0x0, n_param_values=2, param_values=0x7f96a08c2900, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gclosure.c:774
        marshal = 0x7f969d1683b0 <g_cclosure_marshal_VOID__BOXED>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#6  0x00007f969d176635 in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=<optimized out>, emission_return=0x0, instance_and_params=0x7f96a08c2900) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3302
        tmp = <optimized out>
        handler = 0x7f96a08ba530
        accumulator = 0x0
        emission = {next = 0x7fff127ba220, instance = 0x7f96a089c500, ihint = {signal_id = 227, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7f96a04dd3d0
        hlist = 0x7f96a08c0e48
        handler_list = 0x7f96a08ba530
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 227
        max_sequential_handler_number = 1091
        return_value_altered = 1
#7  0x00007f969d17e00b in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=0x7fff127b9ed8) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3033
        instance_and_params = 0x7f96a08c2900
        signal_return_type = 4
        param_values = 0x7f96a08c2918
        node = 0x7f96a04dd400
        i = <optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#8  0x00007f969d17e1d2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3090
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff127b9fb0, reg_save_area = 0x7fff127b9ef0}}
#9  0x00007f969e856eb5 in gtk_list_store_remove (list_store=0x7f96a089c500, iter=0x7fff127ba000) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtkliststore.c:1233
        priv = 0x7f96a089c520
        path = 0x7f96a09c1eb0
        ptr = <optimized out>
        next = 0x7f96a08c2b20
        __PRETTY_FUNCTION__ = "gtk_list_store_remove"
#10 0x00007f969e8576bf in gtk_list_store_clear (list_store=0x7f96a089c500) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtkliststore.c:1452
        priv = 0x7f96a089c520
        iter = {stamp = -581657958, user_data = 0x7f96a08c2900, user_data2 = 0x7f967c002680, user_data3 = 0x7f96a02ea6f0}
        __PRETTY_FUNCTION__ = "gtk_list_store_clear"
#11 0x00007f96890c1fe6 in section_selection_changed (selection=<optimized out>, data=<optimized out>) at keyboard-shortcuts.c:863
        keys = 0x7f96a043d860
        shortcut_model = 0x7f96a089c500
        group = BINDING_GROUP_SYSTEM
        i = <optimized out>
        shortcut_treeview = 0x7f96a0894380
        description = 0x7f96a08eecd0 "\320\237\320\265\321\200\320\265\320\274\320\265\321\211\320\265\320\275\320\270\320\265"
        iter = {stamp = 1534778837, user_data = 0x7f96a08ce770, user_data2 = 0x7f96a08cf850, user_data3 = 0x0}
        model = 0x7f96a089d8f0
        builder = <optimized out>
#12 0x00007f969d166384 in g_closure_invoke (closure=0x7f96a084ea70, return_value=0x0, n_param_values=1, param_values=0x7f96a09d7800, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gclosure.c:774
        marshal = 0x7f969d1677a0 <g_cclosure_marshal_VOID__VOID>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#13 0x00007f969d176635 in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=<optimized out>, emission_return=0x0, instance_and_params=0x7f96a09d7800) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3302
        tmp = <optimized out>
        handler = 0x7f96a084d8a0
        accumulator = 0x0
        emission = {next = 0x7fff127ba780, instance = 0x7f96a0873b70, ihint = {signal_id = 284, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7f96a0887f30
        hlist = 0x7f96a084eaa8
        handler_list = 0x7f96a084d8a0
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 284
        max_sequential_handler_number = 1091
        return_value_altered = 1
#14 0x00007f969d17e00b in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=0x7fff127ba418) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3033
        instance_and_params = 0x7f96a09d7800
        signal_return_type = 4
        param_values = 0x7f96a09d7818
        node = 0x7f96a088bf30
        i = <optimized out>
        n_params = 0
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#15 0x00007f969d17e1d2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3090
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff127ba4f0, reg_save_area = 0x7fff127ba430}}
#16 0x00007f969e978804 in gtk_tree_view_real_set_cursor (tree_view=0x7f96a0894000, path=0x7f96a09b2550, flags=3) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtktreeview.c:13277
        mode = <optimized out>
        new_tree = 0x0
        new_node = 0x0
#17 0x00007f969e97cb64 in gtk_tree_view_button_press (widget=0x7f96a0894000, event=0x7f96a084c110) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtktreeview.c:3112
        focus_cell = <optimized out>
        pre_val = 0
        column_handled_click = 0
        path = 0x7f96a09b2550
        y_offset = <optimized out>
        dval = <optimized out>
        rtl = 0
        extend_mod_mask = GDK_SHIFT_MASK
        modify_mod_mask = GDK_CONTROL_MASK
        node = 0x7f96a0855640
        tree = 0x7f96a08ce800
        depth = 1
        column = 0x7f96a08a0210
        row_double_click = 0
        node_selected = 0
        tree_view = 0x7f96a0894000
        list = <optimized out>
        column = 0x0
        i = <optimized out>
        background_area = {x = 0, y = 69, width = 168, height = 23}
        cell_area = {x = 1, y = 69, width = 166, height = 23}
        vertical_separator = 0
        horizontal_separator = 2
        rtl = <optimized out>
#18 0x00007f969e85b303 in _gtk_marshal_BOOLEAN__BOXED (closure=0x7f96a02f2cc0, return_value=0x7fff127ba7d0, n_param_values=<optimized out>, param_values=0x7f96a09bfa90, invocation_hint=<optimized out>, marshal_data=<optimized out>) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtkmarshalers.c:85
        callback = 0x7f969e97c350 <gtk_tree_view_button_press>
        cc = 0x7f96a02f2cc0
        data1 = 0x7f96a0894000
        data2 = 0x7f96a02ea6f0
        v_return = <optimized out>
        __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXED"
#19 0x00007f969d166384 in g_closure_invoke (closure=0x7f96a02f2cc0, return_value=0x7fff127ba7d0, n_param_values=2, param_values=0x7f96a09bfa90, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gclosure.c:774
        marshal = 0x7f969d164c20 <g_type_class_meta_marshal>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#20 0x00007f969d176c1a in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=<optimized out>, emission_return=0x7fff127ba910, instance_and_params=0x7f96a09bfa90) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3340
        accumulator = 0x7f96a02f30c0
        emission = {next = 0x0, instance = 0x7f96a0894000, ihint = {signal_id = 28, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 140284910104096}
        class_closure = 0x7f96a02f2cc0
        hlist = 0x7f96a08b6d98
        handler_list = 0x0
        return_accu = 0x7fff127ba7d0
        accu = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 28
        max_sequential_handler_number = 1091
        return_value_altered = 0
#21 0x00007f969d17deed in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=0x7fff127ba978) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3043
        return_value = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        error = 0x0
        rtype = 20
        static_scope = 0
        instance_and_params = 0x7f96a09bfa90
        signal_return_type = 20
        param_values = 0x7f96a09bfaa8
        node = 0x7f96a02f2d30
        i = <optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#22 0x00007f969d17e1d2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3090
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff127baa50, reg_save_area = 0x7fff127ba990}}
#23 0x00007f969e996ac9 in gtk_widget_event_internal (widget=0x7f96a0894000, event=0x7f96a084c110) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtkwidget.c:6154
        signal_num = <optimized out>
        return_val = 0
#24 0x00007f969e85aada in gtk_propagate_event (widget=0x7f96a0894000, event=0x7f96a084c110) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtkmain.c:2434
        tmp = <optimized out>
        handled_event = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_propagate_event"
#25 0x00007f969e85aefb in gtk_main_do_event (event=0x7f96a084c110) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtkmain.c:1691
        event_widget = <optimized out>
        grab_widget = 0x7f96a0894000
        window_group = <optimized out>
        rewritten_event = <optimized out>
        device = <optimized out>
        tmp_list = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_main_do_event"
#26 0x00007f969e495792 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.3.14/./gdk/x11/gdkeventsource.c:360
        display = <optimized out>
        event = 0x7f96a084c110
#27 0x00007f969ceabbca in g_main_dispatch (context=0x7f96a0335710) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:2510
        dispatch = 0x7f969e495770 <gdk_event_source_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x7f96a0337590, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7f96a0337590
        current = 0x7f96a05b1060
        i = <optimized out>
#28 g_main_context_dispatch (context=0x7f96a0335710) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3047
No locals.
#29 0x00007f969ceabf90 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f96a0335710, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3118
        timeout = 500
        some_ready = 1
        fds = <optimized out>
        max_priority = 2147483647
        nfds = 5
        allocated_nfds = <optimized out>
#30 g_main_context_iterate (context=0x7f96a0335710, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3055
        some_ready = 1
#31 0x00007f969ceac054 in g_main_context_iteration (context=0x7f96a0335710, may_block=1) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3179
        retval = <optimized out>
#32 0x00007f969d4436a4 in g_application_run (application=0x7f96a0478480, argc=<optimized out>, argv=0x7fff127bad78) at /build/buildd/glib2.0-2.31.16/./gio/gapplication.c:1496
        arguments = 0x7f96a061e210
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#33 0x00007f969f1b3b3c in main (argc=2, argv=0x7fff127bad78) at control-center.c:201
        shell = <optimized out>
        application = 0x7f96a0478480
        status = <optimized out>