.
Thread 3 (Thread 0x7f43015db700 (LWP 2544)):
#0  0x00007f430b681b03 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  0x00007f430c0d1b04 in g_main_context_poll (n_fds=1, fds=0x7f42f40010e0, timeout=-1, context=0xdc63c0, priority=<optimized out>) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3440
        poll_func = 0x7f430c0df990 <g_poll>
#2  g_main_context_iterate (context=0xdc63c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3141
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x7f42f40010e0
#3  0x00007f430c0d1f62 in g_main_loop_run (loop=0x7f42f40010c0) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f43015e0afb in dconf_context_thread (data=0xdc63c0) at dconfcontext.c:11
        context = 0xdc63c0
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#5  0x00007f430c0f4765 in g_thread_proxy (data=0x7f42fc003f20) at /build/buildd/glib2.0-2.33.1/./glib/gthread.c:801
        thread = 0x7f42fc003f20
#6  0x00007f430b95fe9a in start_thread (arg=0x7f43015db700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f43015db700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6739403631768282951, 140733246580544, 139925762456000, 0, 3, 6701029285951002809, 6701007912652331193}, 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"
#7  0x00007f430b68d4bd 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 0x7f4302fe6700 (LWP 2541)):
#0  0x00007f430b681b03 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  0x00007f430c0d1b04 in g_main_context_poll (n_fds=3, fds=0x7f42fc0010c0, timeout=-1, context=0xdb9230, priority=<optimized out>) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3440
        poll_func = 0x7f430c0df990 <g_poll>
#2  g_main_context_iterate (context=0xdb9230, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3141
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = <optimized out>
        fds = 0x7f42fc0010c0
#3  0x00007f430c0d1f62 in g_main_loop_run (loop=0xdb9150) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f430c6a46f6 in gdbus_shared_thread_func (user_data=0xdb9200) at /build/buildd/glib2.0-2.33.1/./gio/gdbusprivate.c:277
        data = 0xdb9200
#5  0x00007f430c0f4765 in g_thread_proxy (data=0xdb5630) at /build/buildd/glib2.0-2.33.1/./glib/gthread.c:801
        thread = 0xdb5630
#6  0x00007f430b95fe9a in start_thread (arg=0x7f4302fe6700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f4302fe6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6739403631768282951, 140733246581872, 139925789764032, 0, 3, 6701024082061252793, 6701007912652331193}, 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"
#7  0x00007f430b68d4bd 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 0x7f430585a980 (LWP 2534)):
#0  0x000000000048204f in nautilus_window_menus_set_visibility_for_app_menu (window=0x159a020) at nautilus-window-menus.c:1118
        action_name = 0x5013fc "New Window"
        shows_app_menu = 0
        settings = <optimized out>
        action = <optimized out>
#1  0x00007f430c38f074 in g_closure_invoke (closure=0x159c820, return_value=0x0, n_param_values=2, param_values=0x7fff032babc0, invocation_hint=0x7fff032bab60) at /build/buildd/glib2.0-2.33.1/./gobject/gclosure.c:777
        marshal = 0x7f430c391ff0 <g_cclosure_marshal_VOID__PARAM>
        marshal_data = 0x0
        in_marshal = <optimized out>
        real_closure = 0x159c800
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#2  0x00007f430c3a0d60 in signal_emit_unlocked_R (node=node@entry=0xc6c530, detail=detail@entry=674, instance=instance@entry=0xcc9ed0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff032babc0) at /build/buildd/glib2.0-2.33.1/./gobject/gsignal.c:3547
        tmp = <optimized out>
        handler = 0x7f42f8010600
        accumulator = 0x0
        emission = {next = 0x0, instance = 0xcc9ed0, ihint = {signal_id = 1, detail = 674, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0xc6c4a0
        hlist = 0x1582e00
        handler_list = 0x1582e00
        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 = 8327
        return_value_altered = 1
#3  0x00007f430c3a8fe1 in g_signal_emit_valist (instance=0xcc9ed0, signal_id=<optimized out>, detail=674, var_args=var_args@entry=0x7fff032bae18) at /build/buildd/glib2.0-2.33.1/./gobject/gsignal.c:3296
        instance_and_params = 0x7fff032babc0
        signal_return_type = 4
        param_values = 0x7fff032babd8
        node = 0xc6c530
        i = <optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#4  0x00007f430c3a9232 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.33.1/./gobject/gsignal.c:3352
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff032baef0, reg_save_area = 0x7fff032bae30}}
#5  0x00007f430c393bc5 in g_object_dispatch_properties_changed (object=0xcc9ed0, n_pspecs=5247996, pspecs=0x7f430bb702c0) at /build/buildd/glib2.0-2.33.1/./gobject/gobject.c:1041
No locals.
#6  0x00007f430c39567b in g_object_notify_by_spec_internal (pspec=0xcc9e30, object=0xcc9ed0) at /build/buildd/glib2.0-2.33.1/./gobject/gobject.c:1133
        nqueue = 0x0
        notify_pspec = 0xcc9e30
#7  g_object_notify (object=object@entry=0xcc9ed0, property_name=<optimized out>) at /build/buildd/glib2.0-2.33.1/./gobject/gobject.c:1175
        pspec = 0xcc9e30
        __PRETTY_FUNCTION__ = "g_object_notify"
#8  0x00007f430ea442c3 in _gtk_settings_handle_event (event=<optimized out>) at /build/buildd/gtk+3.0-3.4.2/./gtk/gtksettings.c:2528
        screen = 0xcb80d0
        settings = 0xcc9ed0
        pspec = 0xcc9e30
        property_id = <optimized out>
#9  0x00007f430e9cc96d in gtk_main_do_event (event=0x1599630) at /build/buildd/gtk+3.0-3.4.2/./gtk/gtkmain.c:1498
        event_widget = <optimized out>
        grab_widget = 0x0
        topmost_widget = 0x0
        window_group = <optimized out>
        rewritten_event = 0x0
        device = <optimized out>
        tmp_list = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_main_do_event"
#10 0x00007f430e61ce02 in gdk_event_source_dispatch (source=source@entry=0xcc0a80, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.4.2/./gdk/x11/gdkeventsource.c:358
        display = <optimized out>
        event = 0x1599630
#11 0x00007f430c0d1835 in g_main_dispatch (context=0xcbdd70) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:2539
        dispatch = 0x7f430e61cde0 <gdk_event_source_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0xcc0a80, next = 0x0}
        need_destroy = <optimized out>
        source = 0xcc0a80
        current = 0xdb8a20
        i = <optimized out>
#12 g_main_context_dispatch (context=context@entry=0xcbdd70) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3075
No locals.
#13 0x00007f430c0d1b68 in g_main_context_iterate (context=context@entry=0xcbdd70, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3146
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x102bf00
#14 0x00007f430c0d1c24 in g_main_context_iteration (context=0xcbdd70, context@entry=0x0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.1/./glib/gmain.c:3207
        retval = <optimized out>
#15 0x00007f430c670d4c in g_application_run (application=0xc7e000, argc=argc@entry=2, argv=argv@entry=0x7fff032bb258) at /build/buildd/glib2.0-2.33.1/./gio/gapplication.c:1570
        arguments = 0xc6d080
        status = -1431655766
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#16 0x000000000042b13b in main (argc=2, argv=0x7fff032bb258) at nautilus-main.c:103
        retval = <optimized out>
        application = 0xc7e000