[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7efef67da700 (LWP 13229)]
__lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
136	2:	movl	%edx, %eax

Thread 2 (Thread 0x7efef67da700 (LWP 13229)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
#1  0x00000032e8209fb2 in _L_lock_910 () from /lib64/libpthread.so.0
#2  0x00000032e8209e4b in __pthread_mutex_lock (mutex=0x7efedc001610) at pthread_mutex_lock.c:86
#3  0x00007efeff193ece in g_rec_mutex_lock (mutex=0x7efeec007858) at gthread-posix.c:377
#4  0x00007efeffce7c02 in gst_element_set_state_func (element=0x7efeec007800, state=GST_STATE_READY) at gstelement.c:2440
#5  0x00007efef882e002 in connect_pad (dbin=0x882730, src=0x88a2f0, dpad=0x7efedc005510, pad=0x88c050, caps=<optimized out>, factories=<optimized out>, chain=0x7efeec014c80) at gstdecodebin2.c:1995
#6  0x00007efef883685d in analyze_new_pad (dbin=0x882730, src=<optimized out>, pad=0x88c050, caps=0x885ad0, chain=<optimized out>) at gstdecodebin2.c:1657
#7  0x00007efef8836d02 in type_found (typefind=0x88a2f0, probability=<optimized out>, caps=0x885ad0, decode_bin=0x882730) at gstdecodebin2.c:2398
#8  0x00007efeff846d64 in ffi_call_unix64 () at ../src/x86/unix64.S:75
#9  0x00007efeff846785 in ffi_call (cif=0x7efef67d96b0, fn=0x7efef8836ab0 <type_found>, rvalue=<optimized out>, avalue=<optimized out>) at ../src/x86/ffi64.c:486
#10 0x00007efeffa5b9cd in g_cclosure_marshal_generic (closure=0x88beb0, return_gvalue=0x0, n_param_values=3, param_values=0x7efef67d9940, invocation_hint=0x7efef67d9870, marshal_data=0x0) at gclosure.c:1454
#11 0x00007efeffa5a230 in g_closure_invoke (closure=0x88beb0, return_value=0x0, n_param_values=3, param_values=0x7efef67d9940, invocation_hint=0x7efef67d9870) at gclosure.c:777
#12 0x00007efeffa7793e in signal_emit_unlocked_R (node=0x888f80, detail=0, instance=0x88a2f0, emission_return=0x0, instance_and_params=0x7efef67d9940) at gsignal.c:3551
#13 0x00007efeffa76bbc in g_signal_emit_valist (instance=0x88a2f0, signal_id=34, detail=0, var_args=0x7efef67d9c98) at gsignal.c:3300
#14 0x00007efeffa77105 in g_signal_emit (instance=0x88a2f0, signal_id=34, detail=0) at gsignal.c:3356
#15 0x00007efef8612047 in gst_type_find_element_loop (pad=<optimized out>) at gsttypefindelement.c:1051
#16 0x00007efeffd2992f in gst_task_func (task=0x7efee800b900) at gsttask.c:316
#17 0x00007efeff172496 in g_thread_pool_thread_proxy (data=0x7356b0) at gthreadpool.c:309
#18 0x00007efeff171ed1 in g_thread_proxy (data=0x7efee8002d40) at gthread.c:801
#19 0x00000032e8207d90 in start_thread (arg=0x7efef67da700) at pthread_create.c:309
#20 0x00000032e7ef0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7efeff0f0700 (LWP 13226)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
#1  0x00000032e8209fb2 in _L_lock_910 () from /lib64/libpthread.so.0
#2  0x00000032e8209e4b in __pthread_mutex_lock (mutex=0x88b730) at pthread_mutex_lock.c:86
#3  0x00007efeff193ece in g_rec_mutex_lock (mutex=0x88c750) at gthread-posix.c:377
#4  0x00007efeffd03dd8 in gst_pad_pause_task (pad=0x88c6e0) at gstpad.c:5173
#5  0x00007efef861244c in gst_type_find_element_activate_src_mode (pad=<optimized out>, parent=<optimized out>, mode=GST_PAD_MODE_PULL, active=1) at gsttypefindelement.c:967
#6  0x00007efeffcff0d6 in gst_pad_activate_mode (pad=0x88c050, mode=GST_PAD_MODE_PULL, active=1) at gstpad.c:1055
#7  0x00007efeffcff79d in gst_pad_activate_mode (pad=0x7efee80666d0, mode=GST_PAD_MODE_PULL, active=1) at gstpad.c:1029
#8  0x00007efeffcffa16 in gst_pad_set_active (pad=0x7efee80666d0, active=1) at gstpad.c:931
#9  0x00007efeffce3684 in activate_pads (vpad=<optimized out>, ret=0x7fff46cfc6c0, active=0x7fff46cfc71c) at gstelement.c:2644
#10 0x00007efeffcf296c in gst_iterator_fold (it=0x7efee8003a80, func=0x7efeffce3660 <activate_pads>, ret=0x7fff46cfc6c0, user_data=0x7fff46cfc71c) at gstiterator.c:614
#11 0x00007efeffce3885 in iterator_activate_fold_with_resync (iter=0x7efee8003a80, user_data=0x7fff46cfc71c, func=0x7efeffce3660 <activate_pads>) at gstelement.c:2664
#12 0x00007efeffce55e8 in gst_element_pads_activate (element=0x7efeec007800, active=1) at gstelement.c:2708
#13 0x00007efeffce58c5 in gst_element_change_state_func (element=0x7efeec007800, transition=<optimized out>) at gstelement.c:2772
#14 0x00007efef7623b1f in gst_avi_demux_change_state (element=0x7efeec007800, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at gstavidemux.c:5472
#15 0x00007efeffce756c in gst_element_change_state (element=0x7efeec007800, transition=<optimized out>) at gstelement.c:2559
#16 0x00007efeffce75ef in gst_element_change_state (element=0x7efeec007800, transition=<optimized out>) at gstelement.c:2596
#17 0x00007efeffce7eef in gst_element_set_state_func (element=0x7efeec007800, state=GST_STATE_PAUSED) at gstelement.c:2515
#18 0x00007efeffccfb70 in gst_bin_element_set_state (next=GST_STATE_PAUSED, current=GST_STATE_READY, start_time=0, base_time=0, element=0x7efeec007800, bin=0x882730) at gstbin.c:2306
#19 gst_bin_change_state_func (element=0x882730, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at gstbin.c:2608
#20 0x00007efef8834990 in gst_decode_bin_change_state (element=0x882730, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at gstdecodebin2.c:4175
#21 0x00007efeffce756c in gst_element_change_state (element=0x882730, transition=<optimized out>) at gstelement.c:2559
#22 0x00007efeffce7eef in gst_element_set_state_func (element=0x882730, state=GST_STATE_PAUSED) at gstelement.c:2515
#23 0x00007efeffccfb70 in gst_bin_element_set_state (next=GST_STATE_PAUSED, current=GST_STATE_READY, start_time=0, base_time=0, element=0x882730, bin=0x882010) at gstbin.c:2306
#24 gst_bin_change_state_func (element=0x882010, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at gstbin.c:2608
#25 0x00007efef883afb3 in gst_uri_decode_bin_change_state (element=0x882010, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at gsturidecodebin.c:2581
#26 0x00007efeffce756c in gst_element_change_state (element=0x882010, transition=<optimized out>) at gstelement.c:2559
#27 0x00007efeffce7eef in gst_element_set_state_func (element=0x882010, state=GST_STATE_PAUSED) at gstelement.c:2515
#28 0x00007efeffccfb70 in gst_bin_element_set_state (next=GST_STATE_PAUSED, current=GST_STATE_READY, start_time=0, base_time=0, element=0x882010, bin=0x87e150) at gstbin.c:2306
#29 gst_bin_change_state_func (element=0x87e150, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at gstbin.c:2608
#30 0x00007efeffd05854 in gst_pipeline_change_state (element=0x87e150, transition=<optimized out>) at gstpipeline.c:468
#31 0x00007efeffce756c in gst_element_change_state (element=0x87e150, transition=<optimized out>) at gstelement.c:2559
#32 0x00007efeffce7eef in gst_element_set_state_func (element=0x87e150, state=GST_STATE_PAUSED) at gstelement.c:2515
#33 0x00007eff008ca7c6 in _setup_locked (dc=0x7d3030) at gstdiscoverer.c:1405
#34 0x00007eff008cb06a in start_discovering (dc=0x7d3030) at gstdiscoverer.c:1515
#35 0x00007eff008ce591 in gst_discoverer_discover_uri (discoverer=0x7d3030, uri=<optimized out>, err=0x7fff46cfd1d8) at gstdiscoverer.c:1695
#36 0x0000000000403c74 in process_file (dc=0x7d3030, filename=<optimized out>) at gst-discoverer.c:495
#37 0x0000000000403bf2 in process_file (dc=0x7d3030, filename=0x7fff46cfdde8 ".") at gst-discoverer.c:462
#38 0x0000000000402a17 in main (argc=2, argv=0x7fff46cfd488) at gst-discoverer.c:580
