Comment 2 for bug 1285701

StacktraceTop:
 main_arena () from /tmp/apport_sandbox_31eO4c/lib/i386-linux-gnu/libc.so.6
 dconf_engine_call_handle_reply (handle=handle@entry=0x957b0b8, parameter=0xb19080c0, error=0x0) at dconf-engine.c:724
 dconf_gdbus_method_call_done (source=0x8d01008, result=0x8b1e2b8, user_data=0x957b0b8) at dconf-gdbus-thread.c:231
 g_simple_async_result_complete (simple=0x8b1e2b8) at /build/buildd/glib2.0-2.39.90/./gio/gsimpleasyncresult.c:763
 g_dbus_connection_call_done (source=0x8d01008, result=0xb1902a90, user_data=0xb230afb0) at /build/buildd/glib2.0-2.39.90/./gio/gdbusconnection.c:5498