Hi, <div class="gmail_quote"> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div link="blue" vlink="purple" lang="EN-US"> <div> Hello, I am trying to investigate a crash in the dbus/dbus-glib code when trying to use dbus-glib to communicate with upstart 0.5. Whenever a crash occurs, it always seems to be failing with a similar stack trace (see below). The system is a 4 core cavium board (mips). The test application is using 4 gthreads to make upstart async api calls to get upstart version in a while loop. We have started a separate gthread to that does a g_main_loop_run() to handle responses from the async calls. The application crashes after several successful api requests (1000 +) The same code does not crash on a 2 core ppc based board. The software versions we are using are as follows. Upstart Version 0.5 dbus-glib Version 0.76 dbus Version 1.2.1 glib Version 2.6.6 The code flow looks like this main() { g_type_init (); g_thread_init(NULL); dbus_g_thread_init(); //Create dbus connection connection = dbus_g_bus_get (DBUS_BUS_SYSTEM,&error);</div></div></blockquote><div> -- Could you check if you get the connection here, because in the bt it look like your connection object is NULL. </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-US"><div> //Create upstart proxy to be shared by the 4 threads. upstartProxy = dbus_g_proxy_new_for_name (connection, UPSTART_SERVICE, /* "com.ubuntu.Upstart"*/ UPSTART_SERVICE_PATH, /* "/com/ubuntu/Upstart"*/ UPSTART_INTERFACE); /* "com.ubuntu.Upstart"*/ //Create mutex to lock/unlock before each of the threads makes the async call. myMutex=g_mutex_new(); //Upstart Proxy and mutex are passed to all 4 threads. //Create 1 gthread that runs g_main_loop_run() to handle callbacks for async calls. //Create 4 gthreads to make async calls. //call g_thread_join() on all 5 threads. }</div></div></blockquote><div> -- Well, did not understand, why you are creating so many threads. </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div link="blue" vlink="purple" lang="EN-US"><div> Thanks, Sandeep </div> </div> -Br</blockquote><div>Naveen </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> _______________________________________________ dbus mailing list <a href="mailto:dbus@lists.freedesktop.org">dbus@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/dbus" target="_blank">http://lists.freedesktop.org/mailman/listinfo/dbus</a> </blockquote></div>