.
Thread 4 (Thread 0x7f3afee17700 (LWP 6781)):
#0  0x00007f3b1eaaad93 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  0x00007f3b1f31a136 in g_main_context_poll (n_fds=5, fds=0x7f3af80050e0, timeout=-1, context=0x7f3b22bb09c0, priority=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3412
        poll_func = 0x7f3b1f3270b0 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f3b22bb09c0, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3113
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7f3af80050e0
        max_priority = 2147483647
        nfds = 5
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7f3b22bb09c0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3055
        some_ready = -134197024
#4  0x00007f3b1f31a59a in g_main_loop_run (loop=0x7f3b22bb23e0) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3312
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007f3b1f8eb5a6 in gdbus_shared_thread_func (user_data=<optimized out>) at /build/buildd/glib2.0-2.31.20/./gio/gdbusprivate.c:277
        data = 0x7f3b22bb2400
#6  0x00007f3b1f33b7f5 in g_thread_proxy (data=0x7f3b22aad000) at /build/buildd/glib2.0-2.31.20/./glib/gthread.c:801
        thread = 0x7f3b22aad000
#7  0x00007f3b1ed88e9a in start_thread (arg=0x7f3afee17700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f3afee17700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7941295669756534328, 140736329729472, 139891361020352, 0, 3, -8052194701189603784, -8051561029304345032}, 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  0x00007f3b1eab674d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7f3afd3a6700 (LWP 8333)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
No locals.
#1  0x00007f3b1f3557a5 in g_cond_wait_until (cond=0x7f3b22d4bbb8, mutex=<optimized out>, end_time=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gthread-posix.c:855
        ts = {tv_sec = 8129, tv_nsec = 519707000}
        status = <optimized out>
#2  0x00007f3b1f2f0271 in g_async_queue_pop_intern_unlocked (queue=0x7f3b22d4bbb0, wait=1, end_time=8129519707) at /build/buildd/glib2.0-2.31.20/./glib/gasyncqueue.c:424
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007f3b1f2f088a in g_async_queue_timeout_pop (queue=0x7f3b22d4bbb0, timeout=15000000) at /build/buildd/glib2.0-2.31.20/./glib/gasyncqueue.c:545
        end_time = 8129519707
        retval = <optimized out>
#4  0x00007f3b1f33bf74 in g_thread_pool_wait_for_new_pool () at /build/buildd/glib2.0-2.31.20/./glib/gthreadpool.c:169
        pool = <optimized out>
        local_max_idle_time = 15000
        local_wakeup_thread_serial = <optimized out>
        local_max_unused_threads = 2
        last_wakeup_thread_serial = 0
        have_relayed_thread_marker = 0
#5  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gthreadpool.c:366
        free_pool = <optimized out>
        task = 0x2
        pool = <optimized out>
#6  0x00007f3b1f33b7f5 in g_thread_proxy (data=0x7f3b22b286d0) at /build/buildd/glib2.0-2.31.20/./glib/gthread.c:801
        thread = 0x7f3b22b286d0
#7  0x00007f3b1ed88e9a in start_thread (arg=0x7f3afd3a6700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f3afd3a6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7941295669756534328, 140736329723792, 139891333294528, 139891964165392, 3, -8052194092914860488, -8051561029304345032}, 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  0x00007f3b1eab674d 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 0x7f3afdfc0700 (LWP 6785)):
#0  0x00007f3b1eaaad93 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  0x00007f3b1f31a136 in g_main_context_poll (n_fds=1, fds=0x7f3af00010e0, timeout=-1, context=0x7f3b22a06bf0, priority=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3412
        poll_func = 0x7f3b1f3270b0 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f3b22a06bf0, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3113
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7f3af00010e0
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7f3b22a06bf0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3055
        some_ready = -268431136
#4  0x00007f3b1f31a59a in g_main_loop_run (loop=0x7f3af00010c0) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3312
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007f3afdfc596b in dconf_context_thread (data=<optimized out>) at dconfcontext.c:11
        context = 0x7f3b22a06bf0
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#6  0x00007f3b1f33b7f5 in g_thread_proxy (data=0x7f3b22b2e1e0) at /build/buildd/glib2.0-2.31.20/./glib/gthread.c:801
        thread = 0x7f3b22b2e1e0
#7  0x00007f3b1ed88e9a in start_thread (arg=0x7f3afdfc0700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f3afdfc0700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7941295669756534328, 140736329728672, 139891345983936, 0, 3, -8052192446868644296, -8051561029304345032}, 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  0x00007f3b1eab674d 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 0x7f3b2140f940 (LWP 6779)):
#0  0x00007f3b07b33f0e in on_pk_transaction_signal (self=0x7f3b229c67f0, signal_name=0x7f3b22d74000 "Destroy", proxy=<optimized out>, sender_name=<optimized out>, parameters=<optimized out>) at cc-info-panel.c:1787
No locals.
#1  on_pk_transaction_signal (proxy=<optimized out>, sender_name=<optimized out>, signal_name=0x7f3b22d74000 "Destroy", parameters=<optimized out>, self=0x7f3b229c67f0) at cc-info-panel.c:1764
No locals.
#2  0x00007f3b1b219a14 in ffi_call_unix64 () at ../src/x86/unix64.S:75
No locals.
#3  0x00007f3b1b219435 in ffi_call (cif=0x7fffbaf0c190, fn=0x7f3b07b33e50 <on_pk_transaction_signal>, rvalue=<optimized out>, avalue=<optimized out>) at ../src/x86/ffi64.c:486
        classes = {X86_64_INTEGER_CLASS, 32767, 24, X86_64_NO_CLASS}
        stack = 0x7fffbaf0bef0 " \002\t#;\177"
        argp = 0x7fffbaf0bfa0 ""
        arg_types = <optimized out>
        gprcount = 5
        ssecount = <optimized out>
        ngpr = 1
        nsse = 0
        i = <optimized out>
        avn = <optimized out>
        ret_in_memory = <optimized out>
        reg_args = 0x7fffbaf0bef0
#4  0x00007f3b1f5d76db in g_cclosure_marshal_generic (closure=0x7f3b230b10d0, return_gvalue=0x0, n_param_values=4, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=0x7f3b07b33e50) at /build/buildd/glib2.0-2.31.20/./gobject/gclosure.c:1451
        rtype = 0x7f3b1b219e40
        rvalue = 0x7fffbaf0c110
        n_args = 5
        atypes = 0x7fffbaf0c0d0
        args = 0x7fffbaf0c090
        i = <optimized out>
        cif = {abi = FFI_UNIX64, nargs = 5, arg_types = 0x7fffbaf0c0d0, rtype = 0x7f3b1b219e40, bytes = 0, flags = 0}
        cc = 0x7f3b230b10d0
        enum_tmpval = 0x7fffbaf0c130
        tmpval_used = 0
#5  0x00007f3b1f5d6e72 in g_closure_invoke (closure=0x7f3b230b10d0, return_value=0x0, n_param_values=4, param_values=0x7f3b22f1e180, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.20/./gobject/gclosure.c:777
        marshal = 0x7f3b1f5d74e0 <g_cclosure_marshal_generic>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        real_closure = 0x7f3b230b10b0
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#6  0x00007f3b1f5e8943 in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=<optimized out>, emission_return=0x0, instance_and_params=0x7f3b22f1e180) at /build/buildd/glib2.0-2.31.20/./gobject/gsignal.c:3547
        tmp = <optimized out>
        handler = 0x7f3b230b5f60
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x7f3b23090220, ihint = {signal_id = 254, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7f3b22b2f430
        hlist = 0x7f3b22e3d748
        handler_list = 0x7f3b230b5f60
        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 = 254
        max_sequential_handler_number = 3534
        return_value_altered = 0
#7  0x00007f3b1f5f10ad in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=0, var_args=<optimized out>) at /build/buildd/glib2.0-2.31.20/./gobject/gsignal.c:3295
        instance_and_params = 0x7f3b22f1e180
        signal_return_type = 4
        param_values = 0x7f3b22f1e198
        node = 0x7f3b22b2f460
        i = <optimized out>
        n_params = 3
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#8  0x00007f3b1f5f12e2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.31.20/./gobject/gsignal.c:3352
        var_args = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fffbaf0c6d0, reg_save_area = 0x7fffbaf0c610}}
#9  0x00007f3b1f8e7814 in on_signal_received (connection=<optimized out>, sender_name=0x7f3af8005fc0 ":1.234", object_path=<optimized out>, interface_name=<optimized out>, signal_name=0x7f3af80081c0 "Destroy", parameters=0x7f3b22aca4f0, user_data=0x7f3b230ad940) at /build/buildd/glib2.0-2.31.20/./gio/gdbusproxy.c:927
        data = 0x7f3b230ad940
        proxy = 0x7f3b23090220
#10 0x00007f3b1f8d6f85 in emit_signal_instance_in_idle_cb (data=0x7f3af8009b10) at /build/buildd/glib2.0-2.31.20/./gio/gdbusconnection.c:3679
        signal_instance = 0x7f3af8009b10
        parameters = 0x7f3b22aca4f0
        has_subscription = 1
#11 0x00007f3b1f319dda in g_main_dispatch (context=0x7f3b228a5a40) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:2510
        dispatch = 0x7f3b1f317a30 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x7f3af8009b10
        callback = 0x7f3b1f8d6f10 <emit_signal_instance_in_idle_cb>
        cb_funcs = 0x7f3b1f5c59a0
        cb_data = 0x7f3af8007680
        current_source_link = {data = 0x7f3af8003730, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7f3af8003730
        current = 0x7f3b22a88160
        i = <optimized out>
#12 g_main_context_dispatch (context=0x7f3b228a5a40) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3047
No locals.
#13 0x00007f3b1f31a1a0 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f3b228a5a40, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3118
        timeout = 3996
        some_ready = 1
        fds = <optimized out>
        max_priority = 2147483647
        nfds = 4
        allocated_nfds = <optimized out>
#14 g_main_context_iterate (context=0x7f3b228a5a40, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3055
        some_ready = 1
#15 0x00007f3b1f31a264 in g_main_context_iteration (context=0x7f3b228a5a40, may_block=1) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3179
        retval = <optimized out>
#16 0x00007f3b1f8b7994 in g_application_run (application=0x7f3b229bd290, argc=<optimized out>, argv=0x7fffbaf0c998) at /build/buildd/glib2.0-2.31.20/./gio/gapplication.c:1496
        arguments = 0x7f3b22ba31e0
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#17 0x00007f3b2144375a in main (argc=1, argv=0x7fffbaf0c998) at control-center.c:207
        shell = <optimized out>
        application = 0x7f3b229bd290
        status = <optimized out>