(gdb) bt #0 0xb7fd2410 in ?? () #1 0xbff3ef1c in ?? () #2 0x00000006 in ?? () #3 0x00001d8c in ?? () #4 0xb79fd060 in raise () from /lib/libc.so.6 #5 0xb79fe801 in abort () from /lib/libc.so.6 #6 0xb7b4183d in g_logv () from /opt/gnome/lib/libglib-2.0.so.0 #7 0xb7b41885 in g_log () from /opt/gnome/lib/libglib-2.0.so.0 #8 0xb7b4196b in g_return_if_fail_warning () from /opt/gnome/lib/libglib-2.0.so.0 #9 0xb7e03162 in gst_element_set_state (element=0xb7e55d00, state=GST_STATE_PAUSED) at gstelement.c:2049 #10 0xb78828e9 in farsight_rtp_stream_transmitter_state_changed () from /usr/lib/farsight-0.1//librtp-session.so #11 0xb7bb6e09 in g_cclosure_marshal_VOID () from /opt/gnome/lib/libgobject-2.0.so.0 #12 0xb7ba9c0b in g_closure_invoke () from /opt/gnome/lib/libgobject-2.0.so.0 #13 0xb7bbad3d in g_signal_override_class_closure () from /opt/gnome/lib/libgobject-2.0.so.0 #14 0xb7bbc247 in g_signal_emit_valist () from /opt/gnome/lib/libgobject-2.0.so.0 #15 0xb7bbc415 in g_signal_emit () from /opt/gnome/lib/libgobject-2.0.so.0 #16 0xb7fa34f6 in farsight_transmitter_signal_connection_state_changed () from /usr/lib/libfarsight-0.1.so.1 #17 0xb77668c2 in farsight_udp_transmitter_configure_source () from /usr/lib/farsight-0.1//librawudp-transmitter.so #18 0xb776725d in farsight_udp_transmitter_prepare () from /usr/lib/farsight-0.1//librawudp-transmitter.so #19 0xb7fa39c4 in farsight_transmitter_prepare () from /usr/lib/libfarsight-0.1.so.1 #20 0xb78826d0 in farsight_rtp_stream_prepare_transports () from /usr/lib/farsight-0.1//librtp-session.so #21 0xb7fa2784 in farsight_stream_prepare_transports () from /usr/lib/libfarsight-0.1.so.1 #22 0x080553c7 in tp_stream_engine_stream_go () #23 0x080527d4 in new_media_stream_handler () #24 0x08050ffb in misc_marshal_VOID__BOXED_UINT_UINT_UINT () #25 0xb7c32236 in marshal_dbus_message_to_g_marshaller () from /usr/lib/libdbus-glib-1.so.2 #26 0xb7ba9c0b in g_closure_invoke () from /opt/gnome/lib/libgobject-2.0.so.0 #27 0xb7bbad3d in g_signal_override_class_closure () from /opt/gnome/lib/libgobject-2.0.so.0 #28 0xb7bbc247 in g_signal_emit_valist () from /opt/gnome/lib/libgobject-2.0.so.0 #29 0xb7bbc415 in g_signal_emit () from /opt/gnome/lib/libgobject-2.0.so.0 #30 0xb7c3310b in dbus_g_proxy_manager_filter () from /usr/lib/libdbus-glib-1.so.2 #31 0xb7be6c72 in dbus_connection_dispatch () from /usr/lib/libdbus-1.so.3 #32 0xb7c2b67d in message_queue_dispatch () from /usr/lib/libdbus-glib-1.so.2 #33 0xb7b38de2 in g_main_context_dispatch () from /opt/gnome/lib/libglib-2.0.so.0 #34 0xb7b3be1f in g_main_context_prepare () from /opt/gnome/lib/libglib-2.0.so.0 #35 0xb7b3c1c9 in g_main_loop_run () from /opt/gnome/lib/libglib-2.0.so.0 #36 0x0804cce3 in main () (gdb) frame 9 #9 0xb7e03162 in gst_element_set_state (element=0xb7e55d00, state=GST_STATE_PAUSED) at gstelement.c:2049 (gdb) p *element $2 = {object = {object = {g_type_instance = {g_class = 0x5f747367}, ref_count = 1835363429, qdata = 0x5f746e65}, refcount = 1601463667, lock = 0x74617473, name = 0x73670065
, name_prefix = 0x6c655f74
, parent = 0x6e656d65, flags = 1869373300, _gst_reserved = 0x735f7473}, state_lock = 0x65746174, state_cond = 0x74736700, state_cookie = 1701602655, current_state = 1953391981, next_state = 1852793695, pending_state = 1970170228, last_return = 1953718117, bus = 0x657461, clock = 0x5f747367, base_time = 6878243912807705701, numpads = 26723, pads = 0x735f6567, numsrcpads = 24948, srcpads = 0x74736700, numsinkpads = 25951, sinkpads = 0x746e656d, pads_cookie = 1868718431, _gst_reserved = {0x735f7472, 0x65746174, 0x74736700, 0x656c655f}} (gdb)