(gdb) inf thr Id Target Id Frame 1 Thread 0x7f1ce2052b00 (LWP 20209) "lt-empathy-call" 0x00007f1cd157137d in __lll_lock_wait () from /lib64/libpthread.so.0 2 Thread 0x7f1cbf4ff700 (LWP 20211) "lt-empathy-call" 0x00007f1cd156e460 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 3 Thread 0x7f1cb7af3700 (LWP 20212) "gmain" 0x00007f1cd1296f3d in poll () from /lib64/libc.so.6 4 Thread 0x7f1cb72f2700 (LWP 20213) "gdbus" 0x00007f1cd1296f3d in poll () from /lib64/libc.so.6 5 Thread 0x7f1cb36e1700 (LWP 20227) "dconf worker" 0x00007f1cd1296f3d in poll () from /lib64/libc.so.6 6 Thread 0x7f1c8d554700 (LWP 20233) "lt-empathy-call" 0x00007f1cd1297001 in ppoll () from /lib64/libc.so.6 7 Thread 0x7f1c8c728700 (LWP 20234) "threaded-ml" 0x00007f1cd1296f3d in poll () from /lib64/libc.so.6 8 Thread 0x7f1c7beac700 (LWP 20235) "pulsesrc0:src" 0x00007f1cd129cb19 in syscall () from /lib64/libc.so.6 9 Thread 0x7f1c7b550700 (LWP 20236) "pulsesrc0:src" 0x00007f1cd156e448 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 12 Thread 0x7f1c6f0ce700 (LWP 20239) "lt-empathy-call" 0x00007f1cd1296f3d in poll () from /lib64/libc.so.6 13 Thread 0x7f1c6e778700 (LWP 20240) "nicesrc0:src" 0x00007f1ce103186a in ?? () from /usr/lib64/libasan.so.3 14 Thread 0x7f1c6ddcc700 (LWP 20241) "nicesrc1:src" 0x00007f1cd2dd9250 in g_hash_table_lookup_node (hash_table=0x60800000bfa0, key=0x7f1c97cbe260, hash_return=0x7f1c6ddc94c0) at ghash.c:396 15 Thread 0x7f1c6d470700 (LWP 20242) "lt-empathy-call" 0x00007f1cd1296f3d in poll () from /lib64/libc.so.6 19 Thread 0x7f1c69bcc700 (LWP 20246) "dtmfsrc0:src" 0x00007f1cd129cb19 in syscall () from /lib64/libc.so.6 20 Thread 0x7f1c690b8700 (LWP 20247) "rtpdtmfsrc0:src" 0x00007f1cd129cb19 in syscall () from /lib64/libc.so.6 26 Thread 0x7f1c61977700 (LWP 20253) "rtpjitterbuffer" 0x00007f1ce106ed20 in ?? () from /usr/lib64/libasan.so.3 27 Thread 0x7f1c61176700 (LWP 20254) "timer" 0x00007f1cd129cb19 in syscall () from /lib64/libc.so.6 29 Thread 0x7f1c60174700 (LWP 20256) "threaded-ml" 0x00007f1cd1296f3d in poll () from /lib64/libc.so.6 214 Thread 0x7f1c4bf7d700 (LWP 20660) "videotestsrc0:s" 0x00007f1cd157137d in __lll_lock_wait () from /lib64/libpthread.so.0 222 Thread 0x7f1c4a77a700 (LWP 20678) "lt-empathy-call" 0x00007f1cd1297001 in ppoll () from /lib64/libc.so.6 * 223 Thread 0x7f1c7a9f4700 (LWP 20679) "nicesrc50:src" gst_base_src_loop (pad=0x6160021d98b0) at gstbasesrc.c:2950 224 Thread 0x7f1c4af7b700 (LWP 20680) "nicesrc51:src" 0x00007f1cd129cb19 in syscall () from /lib64/libc.so.6 225 Thread 0x7f1c4b77c700 (LWP 20682) "timer" 0x00007f1cd129cb19 in syscall () from /lib64/libc.so.6 226 Thread 0x7f1c49f79700 (LWP 20683) "rtpjitterbuffer" 0x00007f1cd129cb19 in syscall () from /lib64/libc.so.6 (gdb) thr 1 [Switching to thread 1 (Thread 0x7f1ce2052b00 (LWP 20209))] #0 0x00007f1cd157137d in __lll_lock_wait () from /lib64/libpthread.so.0 (gdb) bt #0 0x00007f1cd157137d in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x00007f1cd156aeda in pthread_mutex_lock () from /lib64/libpthread.so.0 #2 0x00007f1cd2ea9a0b in g_rec_mutex_lock (mutex=0x6160021d9920) at gthread-posix.c:387 #3 0x00007f1cdf4d13cd in gst_pad_stop_task (pad=0x6160021d98b0) at gstpad.c:6103 #4 0x00007f1cdf8fff2b in gst_base_src_stop (basesrc=0x61900019fb50) at gstbasesrc.c:3542 #5 0x00007f1cdf901068 in gst_base_src_activate_push (pad=0x6160021d98b0, parent=0x61900019fb50, active=0) at gstbasesrc.c:3714 #6 0x00007f1cdf90169b in gst_base_src_activate_mode (pad=0x6160021d98b0, parent=0x61900019fb50, mode=GST_PAD_MODE_PUSH, active=0) at gstbasesrc.c:3786 #7 0x00007f1cdf4b3a0b in activate_mode_internal (pad=0x6160021d98b0, parent=0x61900019fb50, mode=GST_PAD_MODE_PUSH, active=0) at gstpad.c:1178 #8 0x00007f1cdf4b3210 in gst_pad_set_active (pad=0x6160021d98b0, active=0) at gstpad.c:1079 #9 0x00007f1cdf487284 in activate_pads (vpad=0x7ffc3a5e5860, ret=0x7ffc3a5e5920, active=0x7ffc3a5e5994) at gstelement.c:2783 #10 0x00007f1cdf4a0a22 in gst_iterator_fold (it=0x60e0003fc600, func=0x7f1cdf48720e , ret=0x7ffc3a5e5920, user_data=0x7ffc3a5e5994) at gstiterator.c:616 #11 0x00007f1cdf4873ce in iterator_activate_fold_with_resync (iter=0x60e0003fc600, func=0x7f1cdf48720e , user_data=0x7ffc3a5e5994) at gstelement.c:2807 #12 0x00007f1cdf487572 in gst_element_pads_activate (element=0x61900019fb50, active=0) at gstelement.c:2843 #13 0x00007f1cdf48799d in gst_element_change_state_func (element=0x61900019fb50, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2917 #14 0x00007f1cdf90187c in gst_base_src_change_state (element=0x61900019fb50, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstbasesrc.c:3823 #15 0x00007f1ce0977512 in gst_nice_src_change_state (element=0x61900019fb50, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstnicesrc.c:445 #16 0x00007f1cdf486822 in gst_element_change_state (element=0x61900019fb50, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2695 #17 0x00007f1cdf486267 in gst_element_set_state_func (element=0x61900019fb50, state=GST_STATE_READY) at gstelement.c:2649 #18 0x00007f1cdf485a80 in gst_element_set_state (element=0x61900019fb50, state=GST_STATE_READY) at gstelement.c:2550 #19 0x00007f1cdf436aa2 in gst_bin_element_set_state (bin=0x6140001d1660, element=0x61900019fb50, base_time=511963901910483, start_time=0, current=GST_STATE_PAUSED, next=GST_STATE_READY) at gstbin.c:2619 #20 0x00007f1cdf438d6d in gst_bin_change_state_func (element=0x6140001d1660, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstbin.c:2961 #21 0x00007f1cdf486822 in gst_element_change_state (element=0x6140001d1660, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2695 #22 0x00007f1cdf4853ee in gst_element_continue_state (element=0x6140001d1660, ret=GST_STATE_CHANGE_NO_PREROLL) at gstelement.c:2403 #23 0x00007f1cdf486ff0 in gst_element_change_state (element=0x6140001d1660, transition=GST_STATE_CHANGE_PLAYING_TO_PAUSED) at gstelement.c:2741 #24 0x00007f1cdf486267 in gst_element_set_state_func (element=0x6140001d1660, state=GST_STATE_NULL) at gstelement.c:2649 #25 0x00007f1cdf485a80 in gst_element_set_state (element=0x6140001d1660, state=GST_STATE_NULL) at gstelement.c:2550 #26 0x00007f1c9817dee3 in _stop_transmitter_elem (key=0x602000ea2e30, value=0x60f0001a0560, elem_name=0x7f1c981e4a60) at fs-rtp-session.c:571 #27 0x00007f1cd2ddc4c0 in g_hash_table_foreach (hash_table=0x6080017c58a0, func=0x7f1c9817ddd9 <_stop_transmitter_elem>, user_data=0x7f1c981e4a60) at ghash.c:1608 #28 0x00007f1c9817f99b in fs_rtp_session_dispose (obj=0x6160001c9a80) at fs-rtp-session.c:755 #29 0x00007f1cd3186581 in g_object_run_dispose (object=0x6160001c9a80) at gobject.c:1084 #30 0x00007f1ce0754d3f in fs_session_destroy (session=0x6160001c9a80) at fs-session.c:839 #31 0x00007f1ce050c39f in _tf_call_content_destroy (self=0x6110007b3440) at call-content.c:352 #32 0x00007f1ce050a2d8 in free_content (data=0x6110007b3440) at call-channel.c:403 #33 0x00007f1cd2d9c0a3 in g_ptr_array_remove_index_fast (array=0x603000be9d20, index_=1) at garray.c:1229 #34 0x00007f1ce050a236 in content_removed (proxy=0x6150000b8aa0, content_proxy=0x6100007cdbb0, reason=0x603000facd20, self=0x60600055e2c0) at call-channel.c:391 #35 0x00007f1cce191c58 in ffi_call_unix64 () from /lib64/libffi.so.6 #36 0x00007f1cce1916ba in ffi_call () from /lib64/libffi.so.6 #37 0x00007f1cd317c1e8 in g_cclosure_marshal_generic_va (closure=0x60700046d1d0, return_value=0x0, instance=0x6150000b8aa0, args_list=0x7ffc3a5e6a90, marshal_data=0x0, n_params=2, param_types=0x6020002a76b0) at gclosure.c:1604 #38 0x00007f1cd3178c39 in _g_closure_invoke_va (closure=0x60700046d1d0, return_value=0x0, instance=0x6150000b8aa0, args=0x7ffc3a5e6a90, n_params=2, param_types=0x6020002a76b0) at gclosure.c:867 #39 0x00007f1cd31a82db in g_signal_emit_valist (instance=0x6150000b8aa0, signal_id=280, detail=0, var_args=0x7ffc3a5e6a90) at gsignal.c:3300 #40 0x00007f1cd31aa93b in g_signal_emit (instance=0x6150000b8aa0, signal_id=280, detail=0) at gsignal.c:3447 #41 0x00007f1cd7dae8b4 in content_removed_cb (channel=0x6150000b8aa0, object_path=0x60c000690880 "/org/freedesktop/Telepathy/Connection/gabble/jabber/testuser2_40bellet_2einfo_2f5f842d89/CallChannel0/Content_video_2", reason=0x60300166bca0, user_data=0x0, weak_object=0x0) at call-channel.c:353 #42 0x00007f1cd7df338c in _tp_cli_channel_type_call_invoke_callback_for_content_removed (tpproxy=0x6150000b8aa0, error=0x0, args=0x6030012e2c90, generic_callback=0x7f1cd7dae684 , user_data=0x0, weak_object=0x0) at _gen/tp-cli-channel-body.h:10398 #43 0x00007f1cd7f41024 in tp_proxy_signal_invocation_run (p=0x6030021ec8c0) at proxy-signals.c:269 #44 0x00007f1cd2e0555f in g_idle_dispatch (source=0x60800098aea0, callback=0x7f1cd7f40e66 , user_data=0x6030021ec8c0) at gmain.c:5572 #45 0x00007f1cd2dff480 in g_main_dispatch (context=0x60f00000bda0) at gmain.c:3232 #46 0x00007f1cd2e021dd in g_main_context_dispatch (context=0x60f00000bda0) at gmain.c:3885 #47 0x00007f1cd2e02680 in g_main_context_iterate (context=0x60f00000bda0, block=1, dispatch=1, self=0x60400000c710) at gmain.c:3958 #48 0x00007f1cd2e027b6 in g_main_context_iteration (context=0x60f00000bda0, may_block=1) at gmain.c:4019 #49 0x00007f1cd441013d in g_application_run (application=0x6120003f92a0, argc=1, argv=0x7ffc3a5e72d8) at gapplication.c:2381 #50 0x00000000004111a2 in main (argc=1, argv=0x7ffc3a5e72d8) at empathy-call.c:281