.
Thread 3 (Thread 0x7fb05f163700 (LWP 10390)):
#0  0x00007fb079908773 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  0x00007fb079e33f68 in g_main_context_poll (n_fds=5, fds=0x7fb058041a50, timeout=-1, context=0x7fb07d4a5a60, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0x7fb079e424c0 <g_poll>
#2  g_main_context_iterate (context=0x7fb07d4a5a60, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = <optimized out>
        fds = 0x7fb058041a50
#3  0x00007fb079e34792 in g_main_loop_run (loop=0x7fb07d4a5980) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fb07a5f9516 in gdbus_shared_thread_func (user_data=0x7fb07d4a5a30) at /build/buildd/glib2.0-2.30.0/./gio/gdbusprivate.c:276
        data = 0x7fb07d4a5a30
#5  0x00007fb079e592b6 in g_thread_create_proxy (data=0x7fb07d4a5b50) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x7fb07d4a5b50
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007fb079bd9efc in start_thread (arg=0x7fb05f163700) at pthread_create.c:304
        __res = <optimized out>
        pd = 0x7fb05f163700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 783692988564644334, 140737007052416, 140395486263744, 0, 3, -756461033476054546, -756376151557398034}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fb07991489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7fb05e2f3700 (LWP 10392)):
#0  0x00007fb079908773 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  0x00007fb079e33f68 in g_main_context_poll (n_fds=1, fds=0x7fb058000910, timeout=-1, context=0x7fb07d4fcc40, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0x7fb079e424c0 <g_poll>
#2  g_main_context_iterate (context=0x7fb07d4fcc40, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x7fb058000910
#3  0x00007fb079e34792 in g_main_loop_run (loop=0x7fb07d500af0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fb05e2f89cb in dconf_context_thread (data=<optimized out>) at dconfcontext.c:11
        context = 0x7fb07d4fcc40
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#5  0x00007fb079e592b6 in g_thread_create_proxy (data=0x7fb07d4fcd30) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x7fb07d4fcd30
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007fb079bd9efc in start_thread (arg=0x7fb05e2f3700) at pthread_create.c:304
        __res = <optimized out>
        pd = 0x7fb05e2f3700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 783692988564644334, 140737007051552, 140395471124928, 0, 3, -756463172369767954, -756376151557398034}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fb07991489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7fb07c090940 (LWP 10387)):
#0  um_user_set_automatic_login (user=0x0, enabled=1) at um-user.c:1075
        error = 0x7fb05f5afe34
#1  0x00007fb05f5bdcbc in autologin_changed (object=<optimized out>, pspec=<optimized out>, d=0x7fb07d40d280) at um-user-panel.c:532
        active = 1
        user = 0x0
#2  0x00007fb07a2f90a4 in g_closure_invoke (closure=0x7fb07d514600, return_value=0x0, n_param_values=2, param_values=0x7fb07d492f90, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
        marshal = 0x7fb07a2fae50 <g_cclosure_marshal_VOID__PARAM>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#3  0x00007fb07a30b02a in signal_emit_unlocked_R (node=<optimized out>, detail=916, instance=0x7fb07d231200, emission_return=0x0, instance_and_params=0x7fb07d492f90) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3272
        tmp = <optimized out>
        handler = 0x7fb07d566150
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x7fb07d231200, ihint = {signal_id = 1, detail = 916, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7fb07d11f710
        hlist = 0x7fb079bdd1d0
        handler_list = 0x7fb07d4e8960
        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 = 1
        max_sequential_handler_number = 2691
        return_value_altered = 1
#4  0x00007fb07a3146b1 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3003
        instance_and_params = 0x7fb07d492f90
        signal_return_type = 4
        param_values = 0x7fb07d492fa8
        node = 0x7fb07d11f7c0
        i = <optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#5  0x00007fb07a314852 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3060
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffe34fe200, reg_save_area = 0x7fffe34fe140}}
#6  0x00007fb07a2fbfc7 in g_object_dispatch_properties_changed (object=0x7fb07d231200, n_pspecs=1, pspecs=0x7fffe34fe250) at /build/buildd/glib2.0-2.30.0/./gobject/gobject.c:925
        i = <optimized out>
#7  0x00007fb07a2fe520 in g_object_notify_queue_thaw (nqueue=<optimized out>, object=0x7fb07d231200) at /build/buildd/glib2.0-2.30.0/./gobject/gobjectnotifyqueue.c:132
        context = 0x7fb07a5396b0
        pspecs_mem = {0x7fb07d5350a0, 0x7fb076844365, 0x7fb07d148a60, 0xffffffff7d148a78, 0x7fb07d149af0, 0x7fb07d148aa0, 0x7fff00000003, 0x7fffe34fe2d0, 0x7fb07d147810, 0x7fb07d148a60, 0x0, 0x7fb07d148a60, 0x7fb07d148a78, 0x7fb07d155000, 0x7fffe34fe460, 0x7fb07684376f}
        pspecs = 0x7fffe34fe250
        free_me = 0x0
        slist = <optimized out>
        n_pspecs = <optimized out>
#8  g_object_notify_by_spec_internal (pspec=<optimized out>, object=0x7fb07d231200) at /build/buildd/glib2.0-2.30.0/./gobject/gobject.c:983
        nqueue = 0x1
#9  g_object_notify_by_pspec (object=0x7fb07d231200, pspec=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gobject.c:1083
        __PRETTY_FUNCTION__ = "g_object_notify_by_pspec"
#10 0x00007fb07b822636 in gtk_switch_set_active (sw=0x7fb07d231200, is_active=1) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkswitch.c:899
        accessible = <optimized out>
        widget = 0x7fb07d231200
        context = <optimized out>
        priv = 0x7fb07d2312a0
        __PRETTY_FUNCTION__ = "gtk_switch_set_active"
#11 0x00007fb07b8228d9 in gtk_switch_button_release (widget=0x7fb07d231200, event=<optimized out>) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkswitch.c:230
        priv = 0x7fb07d2312a0
        allocation = {x = 487, y = 239, width = 74, height = 24}
#12 0x00007fb07b792e58 in _gtk_marshal_BOOLEAN__BOXED (closure=0x7fb07d12fa70, return_value=0x7fffe34fe500, n_param_values=<optimized out>, param_values=0x7fb07d492ed0, invocation_hint=<optimized out>, marshal_data=<optimized out>) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkmarshalers.c:85
        callback = 0x7fb07b822840 <gtk_switch_button_release>
        cc = 0x7fb07d12fa70
        data1 = 0x7fb07d231200
        data2 = <optimized out>
        v_return = <optimized out>
        __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXED"
#13 0x00007fb07a2f90a4 in g_closure_invoke (closure=0x7fb07d12fa70, return_value=0x7fffe34fe500, n_param_values=2, param_values=0x7fb07d492ed0, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
        marshal = 0x7fb07a2f7940 <g_type_class_meta_marshal>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#14 0x00007fb07a30ae5f in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=0x7fb07d231200, emission_return=0x7fffe34fe660, instance_and_params=0x7fb07d492ed0) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3310
        accumulator = 0x7fb07d12f940
        emission = {next = 0x0, instance = 0x7fb07d231200, ihint = {signal_id = 29, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 140395995159856}
        class_closure = 0x7fb07d12fa70
        hlist = 0x7fb07d4d98b8
        handler_list = 0x0
        return_accu = 0x7fffe34fe500
        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 = 29
        max_sequential_handler_number = 2691
        return_value_altered = 0
#15 0x00007fb07a314483 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3013
        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 = 0x7fb07d492ed0
        signal_return_type = 20
        param_values = 0x7fb07d492ee8
        node = 0x7fb07d12fae0
        i = <optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#16 0x00007fb07a314852 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3060
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffe34fe7a0, reg_save_area = 0x7fffe34fe6e0}}
#17 0x00007fb07b8c0e99 in gtk_widget_event_internal (widget=0x7fb07d231200, event=0x7fb07d74d890) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkwidget.c:6132
        signal_num = <optimized out>
        return_val = 0
#18 0x00007fb07b79263a in gtk_propagate_event (widget=0x7fb07d231200, event=0x7fb07d74d890) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkmain.c:2629
        tmp = <optimized out>
        handled_event = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_propagate_event"
#19 0x00007fb07b792a3b in gtk_main_do_event (event=0x7fb07d74d890) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkmain.c:1894
        event_widget = <optimized out>
        grab_widget = 0x7fb07d231200
        window_group = <optimized out>
        rewritten_event = <optimized out>
        device = <optimized out>
        tmp_list = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_main_do_event"
#20 0x00007fb07b40b102 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.2.0/./gdk/x11/gdkeventsource.c:360
        display = <optimized out>
        event = 0x7fb07d74d890
#21 0x00007fb079e33a5d in g_main_dispatch (context=0x7fb07d16c2e0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0x7fb07b40b0e0 <gdk_event_source_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x7fb07d1426a0, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7fb07d1426a0
        current = 0x7fb07d2f6860
        i = <optimized out>
#22 g_main_context_dispatch (context=0x7fb07d16c2e0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#23 0x00007fb079e34258 in g_main_context_iterate (context=0x7fb07d16c2e0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089
        max_priority = 2147483647
        timeout = 2462
        some_ready = 1
        nfds = 6
        allocated_nfds = <optimized out>
        fds = <optimized out>
#24 0x00007fb079e34792 in g_main_loop_run (loop=0x7fb07d3b2c70) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#25 0x00007fb07b791e1d in gtk_main () at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkmain.c:1367
        loop = 0x7fb07d3b2c70
#26 0x00007fb07a5d0a4e in g_application_run (application=0x7fb07d2d0610, argc=<optimized out>, argv=0x7fffe34feb08) at /build/buildd/glib2.0-2.30.0/./gio/gapplication.c:1323
        arguments = 0x7fb07d3b2c70
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#27 0x00007fb07c0bf3bc in main (argc=2, argv=0x7fffe34feb08) at control-center.c:201
        shell = <optimized out>
        application = 0x7fb07d2d0610
        status = <optimized out>