pkg/53455: xfsettingsd crashes

[bsiegert%NetBSD.org@localhost]

>Number:         53455
>Category:       pkg
>Synopsis:       xfsettingsd crashes
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 16 18:45:00 +0000 2018
>Originator:     Benny Siegert
>Release:        pkgsrc-current as of 2018-07-14
>Organization:
The NetBSD Foundation
>Environment:
NetBSD shiso.mirbsd.org 8.0_RC2 NetBSD 8.0_RC2 (GENERIC) #0: Mon Jun 25 13:01:26 UTC 2018  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64

>Description:
I upgraded my system from a slightly older XFCE build (February) to the newest packages and NetBSD-8.0_RC2.

When I start my xfce session, not all settings seem to be applied, and there is a core file for xfsettingsd in my home directory.

Running gdb on the core file gives

Reading symbols from /usr/pkg/bin/xfsettingsd...(no debugging symbols found)...done.
[New process 1]
[New process 3]
[New process 2]
Core was generated by `xfsettingsd'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007c98fb010821 in up_exported_daemon_get_lid_is_closed () from /usr/pkg/lib/libupower-glib.so.3
[Current thread is 1 (LWP 1)]
(gdb) bt
#0  0x00007c98fb010821 in up_exported_daemon_get_lid_is_closed () from /usr/pkg/lib/libupower-glib.so.3
#1  0x0000000000412149 in ?? ()
#2  0x00007c98fa82f43d in g_type_create_instance () from /usr/pkg/lib/libgobject-2.0.so.0
#3  0x00007c98fa813459 in g_object_new_internal () from /usr/pkg/lib/libgobject-2.0.so.0
#4  0x00007c98fa81481b in g_object_new_with_properties () from /usr/pkg/lib/libgobject-2.0.so.0
#5  0x00007c98fa81547b in g_object_new () from /usr/pkg/lib/libgobject-2.0.so.0
#6  0x0000000000411a87 in ?? ()
#7  0x00007c98fa82f43d in g_type_create_instance () from /usr/pkg/lib/libgobject-2.0.so.0
#8  0x00007c98fa813459 in g_object_new_internal () from /usr/pkg/lib/libgobject-2.0.so.0
#9  0x00007c98fa81481b in g_object_new_with_properties () from /usr/pkg/lib/libgobject-2.0.so.0
#10 0x00007c98fa81547b in g_object_new () from /usr/pkg/lib/libgobject-2.0.so.0
#11 0x0000000000407e5b in ?? ()
#12 0x00007c98facb89b5 in do_call () from /usr/pkg/lib/libgio-2.0.so.0
#13 0x00007c98facb8b82 in request_name_cb () from /usr/pkg/lib/libgio-2.0.so.0
#14 0x00007c98fac82606 in g_task_return_now () from /usr/pkg/lib/libgio-2.0.so.0
#15 0x00007c98fac82f6a in g_task_return () from /usr/pkg/lib/libgio-2.0.so.0
#16 0x00007c98facb1167 in g_dbus_connection_call_done () from /usr/pkg/lib/libgio-2.0.so.0
#17 0x00007c98fac82606 in g_task_return_now () from /usr/pkg/lib/libgio-2.0.so.0
#18 0x00007c98fac8262f in complete_in_idle_cb () from /usr/pkg/lib/libgio-2.0.so.0
---Type <return> to continue, or q <return> to quit--- 
#19 0x00007c98fa446427 in g_main_context_dispatch () from /usr/pkg/lib/libglib-2.0.so.0
#20 0x00007c98fa446745 in g_main_context_iterate.isra () from /usr/pkg/lib/libglib-2.0.so.0
#21 0x00007c98fa446a22 in g_main_loop_run () from /usr/pkg/lib/libglib-2.0.so.0
#22 0x00007c98fda04a24 in gtk_main () from /usr/pkg/lib/libgtk-3.so.0
#23 0x00000000004127c6 in ?? ()
#24 0x0000000000407c5b in ?? ()
#25 0x00007c98fed76000 in ?? ()
#26 0x0000000000000001 in ?? ()
#27 0x00007f7fff791e98 in ?? ()
#28 0x0000000000000000 in ?? ()

Note that this is not a laptop, thus there is no lid that could open or close.
>How-To-Repeat:
Install the following xfce packages:

$ pkg_info | grep xfce
libxfce4util-4.13.1 Xfce basic library
xfce4-conf-4.13.4   Xfce client-server configuration storage and query system
libxfce4ui-4.13.4   Xfce widget library
xfce4-garcon-0.6.1nb3 Xfce menu library
xfce4-exo-0.12.2    Xfce extension library
xfce4-xarchiver-0.5.4nb7 Xfce archiver handler
xfce4-wm-themes-4.10.0nb7 Xfce window manager themes
xfce4-wm-4.13.0nb3  Xfce window manager
xfce4-tumbler-0.2.1nb2 D-Bus thumbnailing service
xfce4-panel-4.13.3  Xfce panel
xfce4-thunar-1.8.1  Xfce file manager
xfce4-terminal-0.8.7.4 Xfce terminal emulator
xfce4-settings-4.13.4 Xfce settings manager
xfce4-session-4.13.0nb5 Xfce session manager
xfce4-power-manager-1.6.1 Xfce power manager
xfce4-orage-4.12.1nb8 Xfce time managing application
xfce4-mousepad-0.4.0nb8 Xfce text editor
xfce4-desktop-4.12.4 Xfce desktop background manager
xfce4-appfinder-4.13.0 Xfce application finder
elementary-xfce-icon-theme-0.11 Elementary icons forked, extended and maintained for Xfce
xfce4-4.12.0nb13    Xfce
$ pkg_info | grep upower
upower-0.99.4nb3    Power management system message bus service

Start XFCE.
>Fix:
?