Comment 2 for bug 1470669

StacktraceTop:
 g_dbus_object_get_interface (object=0x0, interface_name=0x7fb0f4ea6c73 "org.freedesktop.UDisks2.Drive") at /build/buildd/glib2.0-2.44.1/./gio/gdbusobject.c:149
 udisks_object_peek_drive () at /tmp/apport_sandbox_069kt8/usr/lib/x86_64-linux-gnu/libudisks2.so.0
 gdu_window_select_object (window=0xd89a60 [GduWindow], object=object@entry=0x0) at gduwindow.c:882
 create_partition_cb (source_object=0xe83410 [UDisksPartitionTableProxy], res=<optimized out>, user_data=0x1003f30) at gducreatepartitiondialog.c:374
 g_simple_async_result_complete (simple=0x13b76c0 [GSimpleAsyncResult]) at /build/buildd/glib2.0-2.44.1/./gio/gsimpleasyncresult.c:763