No problem. I was directed to add into this bug-report by apport; presumably it had matched the stacktrace top with that in this bug report. Further info available on request.

Title: nm-system-settings crashed with signal 5 in dbus_g_proxy_call_with_timeout()

Stacktrace:
 #0  IA__g_logv (log_domain=0x0, log_level=G_LOG_LEVEL_ERROR, 
     format=0x7f5e6da0334a "Out of memory", args1=0x7fff77cca220)
     at /build/buildd/glib2.0-2.17.7/glib/gmessages.c:503
 	depth = <value optimized out>
 	domain = (GLogDomain *) 0x195b560
 	data = (gpointer) 0x0
 	log_func = (GLogFunc) 0x406460
 	domain_fatal_mask = 6
 	test_level = G_LOG_FLAG_FATAL
 	was_recursion = 0
 	i = <value optimized out>
 #1  0x00007f5e6ced5fc3 in IA__g_log (log_domain=0x7f5e6ce8da00 "", 
     log_level=1824902704, format=0x21 <Address 0x21 out of bounds>)
     at /build/buildd/glib2.0-2.17.7/glib/gmessages.c:517
 	args = {{gp_offset = 24, fp_offset = 48, 
     overflow_arg_area = 0x7fff77cca300, reg_save_area = 0x7fff77cca240}}
 #2  0x00007f5e6d9f8d25 in ?? () from /usr/lib/libdbus-glib-1.so.2
 #3  0x00007f5e6d9f96d5 in dbus_g_proxy_call_with_timeout ()
    from /usr/lib/libdbus-glib-1.so.2
 #4  0x00000000004072e7 in ?? ()
 #5  0x00007f5e6cecc63b in g_timeout_dispatch (source=0x195d020, 
     callback=0x7f5e6cc5ce30, user_data=0x21)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:3532
 No locals.
 #6  0x00007f5e6cecbea2 in IA__g_main_context_dispatch (context=0x1936b10)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:2073
 No locals.
 #7  0x00007f5e6cecf63d in g_main_context_iterate (context=0x1936b10, block=1, 
     dispatch=1, self=<value optimized out>)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:2706
 	max_priority = 2147483647
 	timeout = 2822
 	some_ready = 1
 	nfds = 3
 	allocated_nfds = <value optimized out>
 	fds = (GPollFD *) 0x192fc80
 	__PRETTY_FUNCTION__ = "g_main_context_iterate"
 #8  0x00007f5e6cecfb6d in IA__g_main_loop_run (loop=0x192c6f0)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:2929
 	self = (GThread *) 0x192d460
 	__PRETTY_FUNCTION__ = "IA__g_main_loop_run"
 #9  0x0000000000406bcb in main ()
StacktraceTop:
 ?? () from /usr/lib/libdbus-glib-1.so.2
 dbus_g_proxy_call_with_timeout ()
 ?? ()
 g_timeout_dispatch (source=0x195d020, 
 IA__g_main_context_dispatch (context=0x1936b10)
ThreadStacktrace:
 .
 Thread 1 (process 6493):
 #0  IA__g_logv (log_domain=0x0, log_level=G_LOG_LEVEL_ERROR, 
     format=0x7f5e6da0334a "Out of memory", args1=0x7fff77cca220)
     at /build/buildd/glib2.0-2.17.7/glib/gmessages.c:503
 	depth = <value optimized out>
 	domain = (GLogDomain *) 0x195b560
 	data = (gpointer) 0x0
 	log_func = (GLogFunc) 0x406460
 	domain_fatal_mask = 6
 	test_level = G_LOG_FLAG_FATAL
 	was_recursion = 0
 	i = <value optimized out>
 #1  0x00007f5e6ced5fc3 in IA__g_log (log_domain=0x7f5e6ce8da00 "", 
     log_level=1824902704, format=0x21 <Address 0x21 out of bounds>)
     at /build/buildd/glib2.0-2.17.7/glib/gmessages.c:517
 	args = {{gp_offset = 24, fp_offset = 48, 
     overflow_arg_area = 0x7fff77cca300, reg_save_area = 0x7fff77cca240}}
 #2  0x00007f5e6d9f8d25 in ?? () from /usr/lib/libdbus-glib-1.so.2
 #3  0x00007f5e6d9f96d5 in dbus_g_proxy_call_with_timeout ()
    from /usr/lib/libdbus-glib-1.so.2
 #4  0x00000000004072e7 in ?? ()
 #5  0x00007f5e6cecc63b in g_timeout_dispatch (source=0x195d020, 
     callback=0x7f5e6cc5ce30, user_data=0x21)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:3532
 No locals.
 #6  0x00007f5e6cecbea2 in IA__g_main_context_dispatch (context=0x1936b10)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:2073
 No locals.
 #7  0x00007f5e6cecf63d in g_main_context_iterate (context=0x1936b10, block=1, 
     dispatch=1, self=<value optimized out>)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:2706
 	max_priority = 2147483647
 	timeout = 2822
 	some_ready = 1
 	nfds = 3
 	allocated_nfds = <value optimized out>
 	fds = (GPollFD *) 0x192fc80
 	__PRETTY_FUNCTION__ = "g_main_context_iterate"
 #8  0x00007f5e6cecfb6d in IA__g_main_loop_run (loop=0x192c6f0)
     at /build/buildd/glib2.0-2.17.7/glib/gmain.c:2929
 	self = (GThread *) 0x192d460
 	__PRETTY_FUNCTION__ = "IA__g_main_loop_run"
 #9  0x0000000000406bcb in main ()