Comment 5 for bug 1421308

The offending code that's blocking is in QtMir:

--- QTMIR ---
Thread 11 (Thread 0xae5ff450 (LWP 2627)):
...
#6 0xffffffff in SessionAuthorizer::requestAuthorizationForSession(unsigned long long const&, bool&) () at /usr/lib/arm-linux-gnueabihf/qt5/plugins/platforms/libqpa-mirserver.so
#7 0xffffffff in SessionAuthorizer::connection_is_allowed(mir::frontend::SessionCredentials const&) () at /usr/lib/arm-linux-gnueabihf/qt5/plugins/platforms/libqpa-mirserver.so
--- MIR ---
#8 0xffffffff in mir::frontend::ProtobufConnectionCreator::create_connection_for(std::shared_ptr<boost::asio::basic_stream_socket<boost::asio::local::stream_protocol, boost::asio::stream_socket_service<boost::asio::local::stream_protocol> > > const&, mir::frontend::ConnectionContext const&) (this=0xb047c594, socket=std::shared_ptr (count 2, weak 0) 0x75a9f4, connection_context=...) at /build/buildd/mir-0.11.0+15.04.20150209.1/src/server/frontend/protobuf_connection_creator.cpp:65