Comment 3 for bug 908261

I believe I have the same issue, and here is a more informative bt:

Program received signal SIGSEGV, Segmentation fault.
got_public_files_cb (proxy=0x8268b18, files=0x0, user_data=0x823fe18) at syncdaemon-publicfiles-interface.c:90
90 for (i = 0; i < files->len; i++) {

(gdb) bt
#0 got_public_files_cb (proxy=0x8268b18, files=0x0, user_data=0x823fe18) at syncdaemon-publicfiles-interface.c:90
#1 0x00c81f8a in g_cclosure_marshal_VOID__POINTER (closure=0x81d55e0, return_value=0x0, n_param_values=2, param_values=0x866dae8,
    invocation_hint=0xbfffdf50, marshal_data=0x0) at /build/buildd/glib2.0-2.31.4.tested/./gobject/gmarshal.c:609
#2 0x0161117a in marshal_dbus_message_to_g_marshaller (closure=0x81d55e0, return_value=0x0, n_param_values=3, param_values=0x85e0c10,
    invocation_hint=0xbfffdf50, marshal_data=0x0) at dbus-gproxy.c:1734
#3 0x00c7fdac in g_closure_invoke (closure=0x81d55e0, return_value=0x0, n_param_values=3, param_values=0x85e0c10, invocation_hint=0xbfffdf50)
    at /build/buildd/glib2.0-2.31.4.tested/./gobject/gclosure.c:774
#4 0x00c910c5 in signal_emit_unlocked_R (node=0x8265180, detail=1224, instance=0x8268b18, emission_return=0x0, instance_and_params=0x85e0c10)
    at /build/buildd/glib2.0-2.31.4.tested/./gobject/gsignal.c:3302
#5 0x00c98942 in g_signal_emit_valist (instance=0x8268b18, signal_id=220, detail=1224, var_args=0xbfffe104 "")
    at /build/buildd/glib2.0-2.31.4.tested/./gobject/gsignal.c:3033
#6 0x00c98ad3 in g_signal_emit (instance=0x8268b18, signal_id=220, detail=1224) at /build/buildd/glib2.0-2.31.4.tested/./gobject/gsignal.c:3090
#7 0x01611820 in dbus_g_proxy_emit_remote_signal (message=0x8325748, proxy=<optimized out>) at dbus-gproxy.c:1787
#8 dbus_g_proxy_manager_filter (user_data=0x8268278, message=0x8325748, connection=<optimized out>) at dbus-gproxy.c:1354
#9 dbus_g_proxy_manager_filter (connection=0x8265438, message=0x8325748, user_data=0x8268278) at dbus-gproxy.c:1195
#10 0x01538441 in dbus_connection_dispatch () from /lib/i386-linux-gnu/libdbus-1.so.3
#11 0x016099ad in message_queue_dispatch (source=0x8267c48, callback=0, user_data=0x0) at dbus-gmain.c:90
#12 0x00d0728a in g_main_dispatch (context=0x81f6fa0) at /build/buildd/glib2.0-2.31.4.tested/./glib/gmain.c:2513
#13 g_main_context_dispatch (context=0x81f6fa0) at /build/buildd/glib2.0-2.31.4.tested/./glib/gmain.c:3050
#14 0x00d07695 in g_main_context_iterate (dispatch=1, block=13717552, context=0x81f6fa0, self=<optimized out>)
    at /build/buildd/glib2.0-2.31.4.tested/./glib/gmain.c:3121
#15 g_main_context_iterate (context=0x81f6fa0, block=13717552, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.4.tested/./glib/gmain.c:3058
#16 0x00d07771 in g_main_context_iteration (context=0x81f6fa0, may_block=1) at /build/buildd/glib2.0-2.31.4.tested/./glib/gmain.c:3182
#17 0x00b9562c in g_application_run (application=0x81c5c08, argc=1, argv=0xbfffe434) at /build/buildd/glib2.0-2.31.4.tested/./gio/gapplication.c:1548
#18 0x08067ae4 in main (argc=1, argv=0xbfffe434) at nautilus-main.c:102