.
Thread 3 (Thread 0x7f528cb0f700 (LWP 24790)):
#0  0x00007f528f9288dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f529026f1ec in g_main_context_iterate (priority=2147483647, n_fds=5, fds=0x7f5280008850, timeout=<optimized out>, context=0xce0240) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:4135
        poll_func = 0x7f529027e0e0 <g_poll>
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = 7
        fds = 0x7f5280008850
#2  0x00007f529026f1ec in g_main_context_iterate (context=0xce0240, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3835
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = 7
        fds = 0x7f5280008850
#3  0x00007f529026f572 in g_main_loop_run (loop=0xcde750) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:4034
        __func__ = "g_main_loop_run"
#4  0x00007f52908674c6 in gdbus_shared_thread_func (user_data=0xce0210) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gio/gdbusprivate.c:246
        data = 0xce0210
#5  0x00007f5290295965 in g_thread_proxy (data=0xcc74f0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
        thread = <optimized out>
#6  0x00007f528fbfe6aa in start_thread (arg=0x7f528cb0f700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f528cb0f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139992524453632, 1153704972360312625, 0, 140734339375983, 139992524454336, 13500944, -1249799548908116175, -1249792943599294671}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f528f933eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 2 (Thread 0x7f528d310700 (LWP 24789)):
#0  0x00007f528f9288dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f529026f1ec in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f52880008e0, timeout=<optimized out>, context=0xcddee0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:4135
        poll_func = 0x7f529027e0e0 <g_poll>
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7f52880008e0
#2  0x00007f529026f1ec in g_main_context_iterate (context=context@entry=0xcddee0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3835
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7f52880008e0
#3  0x00007f529026f2fc in g_main_context_iteration (context=0xcddee0, may_block=may_block@entry=1) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3901
        retval = <optimized out>
#4  0x00007f529026f339 in glib_worker_main (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:5672
#5  0x00007f5290295965 in g_thread_proxy (data=0xcc74a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
        thread = <optimized out>
#6  0x00007f528fbfe6aa in start_thread (arg=0x7f528d310700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f528d310700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139992532846336, 1153704972360312625, 0, 140734339375631, 139992532847040, 0, -1249798448859617487, -1249792943599294671}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f528f933eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 1 (Thread 0x7f52911a0880 (LWP 24787)):
#0  0x00007f529027589b in g_logv (breakpoint=1) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmessages.c:324
        domain = 0x0
        data = 0x0
        depth = 1
        log_func = 0x43aa30
        domain_fatal_mask = <optimized out>
        masquerade_fatal = 0
        test_level = <optimized out>
        was_fatal = <optimized out>
        was_recursion = <optimized out>
        msg = 0xdadc70 "cannot create instance of abstract (non-instantiatable) type 'GdmXdmcpDisplay'"
        msg_alloc = 0xdadc70 "cannot create instance of abstract (non-instantiatable) type 'GdmXdmcpDisplay'"
        i = 2
#1  0x00007f529027589b in g_logv (log_domain=0x7f529056fa56 "GLib-GObject", log_level=G_LOG_LEVEL_ERROR, format=<optimized out>, args=args@entry=0x7fff444e5ad0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmessages.c:1081
        domain = 0x0
        data = 0x0
        depth = 1
        log_func = 0x43aa30
        domain_fatal_mask = <optimized out>
        masquerade_fatal = 0
        test_level = <optimized out>
        was_fatal = <optimized out>
        was_recursion = <optimized out>
        msg = 0xdadc70 "cannot create instance of abstract (non-instantiatable) type 'GdmXdmcpDisplay'"
        msg_alloc = 0xdadc70 "cannot create instance of abstract (non-instantiatable) type 'GdmXdmcpDisplay'"
        i = 2
#2  0x00007f5290275a0f in g_log (log_domain=log_domain@entry=0x7f529056fa56 "GLib-GObject", log_level=log_level@entry=G_LOG_LEVEL_ERROR, format=format@entry=0x7f5290577888 "cannot create instance of abstract (non-instantiatable) type '%s'") at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmessages.c:1119
        args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff444e5bb0, reg_save_area = 0x7fff444e5af0}}
#3  0x00007f52905672de in g_type_create_instance (type=14342800) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gtype.c:1816
        instance = <optimized out>
        class = <optimized out>
        allocated = <optimized out>
        private_size = <optimized out>
        ivar_size = <optimized out>
        i = <optimized out>
#4  0x00007f5290548e68 in g_object_constructor (type=<optimized out>, n_construct_properties=13, construct_params=0xdadb90) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:2064
        object = <optimized out>
#5  0x000000000040f7b8 in  ()
#6  0x00007f52905491b9 in g_object_new_internal (n_params=6, params=0x7fff444e5fd0, class=0xdaa6a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:1697
        cparams = 0xdadb90
        cvalues = 0xdaa7d0
        node = <optimized out>
        i = <optimized out>
        nqueue = 0x0
        object = <optimized out>
        n_cparams = 13
        cvals_used = 7
        nqueue = 0x0
        object = <optimized out>
        __func__ = "g_object_new_internal"
#7  0x00007f52905491b9 in g_object_new_internal (class=class@entry=0xdaa6a0, params=params@entry=0x7fff444e5fd0, n_params=n_params@entry=6) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:1777
        nqueue = 0x0
        object = <optimized out>
        __func__ = "g_object_new_internal"
#8  0x00007f529054b225 in g_object_new_valist (object_type=object_type@entry=14342800, first_property_name=first_property_name@entry=0x43c73c "remote-hostname", var_args=var_args@entry=0x7fff444e6120) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:2038
        stack_params = {{pspec = 0xcd25c0 [GParamString], value = 0x7fff444e5f20}, {pspec = 0xcd86c0 [GParamInt], value = 0x7fff444e5ef0}, {pspec = 0xcd2650 [GParamString], value = 0x7fff444e5ec0}, {pspec = 0xcdf910 [GParamBoolean], value = 0x7fff444e5e90}, {pspec = 0xd878d0 [GParamBoxed], value = 0x7fff444e5e60}, {pspec = 0xce86b0 [GParamInt], value = 0x7fff444e5e30}, {pspec = 0xdaa5f0, value = 0xdaa5fb}, {pspec = 0xdaa654, value = 0xdaa5f0}, {pspec = 0xdaa654, value = 0x0}, {pspec = 0x0, value = 0x0}, {pspec = 0x0, value = 0x0}, {pspec = 0x400000000, value = 0x7f52902ef1fe}, {pspec = 0x0, value = 0x0}, {pspec = 0x7f529022a578, value = 0x7f529122ca00}, {pspec = 0x-1, value = 0x0}, {pspec = 0x80, value = 0x80}}
        params = 0x7fff444e5fd0
        name = <optimized out>
        n_params = 6
        class = <optimized out>
        unref_class = <optimized out>
        object = <optimized out>
        __func__ = "g_object_new_valist"
#9  0x00007f529054b591 in g_object_new (object_type=14342800, first_property_name=0x43c73c "remote-hostname") at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gobject.c:1622
        var_args = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fff444e6250, reg_save_area = 0x7fff444e6140}}
        __func__ = "g_object_new"
#10 0x0000000000425e15 in  ()
#11 0x00000000004242ea in  ()
#12 0x00007f529026eeaa in g_main_context_dispatch (context=0xcd3850) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3154
        dispatch = 0x7f52902b3da0 <g_io_unix_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0xce8900
        callback = 0x422740
        cb_funcs = <optimized out>
        cb_data = 0xcfed00
        need_destroy = <optimized out>
        source = 0xcff2d0
        current = 0xcdd0c0
        i = 0
#13 0x00007f529026eeaa in g_main_context_dispatch (context=context@entry=0xcd3850) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3769
#14 0x00007f529026f250 in g_main_context_iterate (context=0xcd3850, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3840
        max_priority = 2147483647
        timeout = -1
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 46
        fds = 0xd8b1e0
#15 0x00007f529026f572 in g_main_loop_run (loop=0xce1540) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:4034
        __func__ = "g_main_loop_run"
#16 0x000000000040b5d2 in  ()
#17 0x00007f528f84da40 in __libc_start_main (main=0x40b210, argc=1, argv=0x7fff444e6758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff444e6748) at libc-start.c:289
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 1153704392030119729, 4241456, 140734339376976, 0, 0, -1153976952015329487, -1249793396771166415}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x43b1f0, 0x7fff444e6758}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4436464}}}
        not_first_call = <optimized out>
#18 0x000000000040b859 in  ()