[Bug 774854] New: validate: Deadlock in queue2 when seeking on a dash stream

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Tue Nov 22 18:37:57 UTC 2016


https://bugzilla.gnome.org/show_bug.cgi?id=774854

            Bug ID: 774854
           Summary: validate: Deadlock in queue2 when seeking on a dash
                    stream
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: tsaunier at gnome.org
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Validate test: validate.dash.playback.seek_with_stop.dash_exMPD_BIP_TC1

Failure example:
https://ci.gstreamer.net/job/GStreamer-master-meson-validate/lastCompletedBuild/testReport/validate.dash.playback/seek_with_stop/dash_exMPD_BIP_TC1/

Stack trace (from above link):

Thread 12 (Thread 0x7f6e6ae2a700 (LWP 7970)):
#0  0x00007f6eb97d510f in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f6e76fb015e in  () at /usr/lib/libavcodec.so.57
#2  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f6e6a629700 (LWP 7969)):
#0  0x00007f6eb97d510f in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f6e76fb015e in  () at /usr/lib/libavcodec.so.57
#2  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f6e8e7fc700 (LWP 7966)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebb0c92e9 in gst_task_func (task=0x7f6e9400c290) at
../subprojects/gstreamer/gst/gsttask.c:319
#3  0x00007f6ebb0ca579 in default_func (tdata=0x7f6e980060c0, pool=0x210d910)
at ../subprojects/gstreamer/gst/gsttaskpool.c:68
#4  0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f6e8effd700 (LWP 7965)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebb0c92e9 in gst_task_func (task=0x7f6e9400cdd0) at
../subprojects/gstreamer/gst/gsttask.c:319
#3  0x00007f6ebb0ca579 in default_func (tdata=0x7f6e80003a60, pool=0x210d910)
at ../subprojects/gstreamer/gst/gsttaskpool.c:68
#4  0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f6e8ffff700 (LWP 7963)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebb0c92e9 in gst_task_func (task=0x7f6e9400c830) at
../subprojects/gstreamer/gst/gsttask.c:319
#3  0x00007f6ebb0ca579 in default_func (tdata=0x7f6e9c006190, pool=0x210d910)
at ../subprojects/gstreamer/gst/gsttaskpool.c:68
#4  0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f6ea9af3700 (LWP 7960)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebb0c92e9 in gst_task_func (task=0x7f6e9400cef0) at
../subprojects/gstreamer/gst/gsttask.c:319
#3  0x00007f6ebb0ca579 in default_func (tdata=0x7f6e80006630, pool=0x210d910)
at ../subprojects/gstreamer/gst/gsttaskpool.c:68
#4  0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f6eaa2f4700 (LWP 7959)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebb0c92e9 in gst_task_func (task=0x7f6ea0142170) at
../subprojects/gstreamer/gst/gsttask.c:319
#3  0x00007f6ebb0ca579 in default_func (tdata=0x7f6ea00135b0, pool=0x210d910)
at ../subprojects/gstreamer/gst/gsttaskpool.c:68
#4  0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f6eab1c0700 (LWP 7958)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebb0c92e9 in gst_task_func (task=0x2339ef0) at
../subprojects/gstreamer/gst/gsttask.c:319
#3  0x00007f6ebb0ca579 in default_func (tdata=0x7f6ea0013420, pool=0x210d910)
at ../subprojects/gstreamer/gst/gsttaskpool.c:68
#4  0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f6eabfff700 (LWP 7957)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebb0c92e9 in gst_task_func (task=0x2339170) at
../subprojects/gstreamer/gst/gsttask.c:319
#3  0x00007f6ebb0ca579 in default_func (tdata=0x231a0a0, pool=0x210d910) at
../subprojects/gstreamer/gst/gsttaskpool.c:68
#4  0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f6eb3f23700 (LWP 7956)):
#0  0x00007f6eba435f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f6ebad65f1f in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6eb303c76f in gst_queue2_handle_sink_query (pad=0x7f6e90009230,
parent=0x7f6e90007000, query=0x7f6ea4008050) at
../subprojects/gstreamer/plugins/elements/gstqueue2.c:2645
#3  0x00007f6ebb36c77a in gst_validate_pad_monitor_query_func
(pad=0x7f6e90009230, parent=0x7f6e90007000, query=0x7f6ea4008050) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2228
#4  0x00007f6ebb08d6aa in gst_pad_query (pad=0x7f6e90009230,
query=0x7f6ea4008050) at ../subprojects/gstreamer/gst/gstpad.c:3951
#5  0x00007f6ebb08e0a2 in gst_pad_peer_query (pad=0x7f6e900096b0,
query=0x7f6ea4008050) at ../subprojects/gstreamer/gst/gstpad.c:4083
#6  0x00007f6eb8389271 in gst_base_src_prepare_allocation
(basesrc=0x7f6e940031e0, caps=0x0) at
../subprojects/gstreamer/libs/gst/base/gstbasesrc.c:3140
#7  0x00007f6eb8389a78 in gst_base_src_negotiate (basesrc=0x7f6e940031e0) at
../subprojects/gstreamer/libs/gst/base/gstbasesrc.c:3284
#8  0x00007f6eb8387b51 in gst_base_src_loop (pad=0x7f6e900096b0) at
../subprojects/gstreamer/libs/gst/base/gstbasesrc.c:2703
#9  0x00007f6ebb0c93c0 in gst_task_func (task=0x7f6e8819c4d0) at
../subprojects/gstreamer/gst/gsttask.c:334
#10 0x00007f6ebb0ca579 in default_func (tdata=0x7f6ea40058a0, pool=0x210d910)
at ../subprojects/gstreamer/gst/gsttaskpool.c:68
#11 0x00007f6ebad48ace in  () at /usr/lib/libglib-2.0.so.0
#12 0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#13 0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f6eb4724700 (LWP 7955)):
#0  0x00007f6eba43148d in poll () at /usr/lib/libc.so.6
#1  0x00007f6ebad20786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6ebad2089c in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f6ebad208e1 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6ebad480d5 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6eb97cf454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f6eba43a7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f6ebb78c780 (LWP 7953)):
#0  0x00007f6eb97d7f1c in __lll_lock_wait () at /usr/lib/libpthread.so.0
#1  0x00007f6eb97d1bb6 in pthread_mutex_lock () at /usr/lib/libpthread.so.0
#2  0x00007f6eb303fc32 in gst_queue2_sink_activate_mode (pad=0x7f6e90009230,
parent=0x7f6e90007000, mode=GST_PAD_MODE_PUSH, active=0) at
../subprojects/gstreamer/plugins/elements/gstqueue2.c:3465
#3  0x00007f6ebb36cae7 in gst_validate_pad_monitor_activatemode_func
(pad=0x7f6e90009230, parent=0x7f6e90007000, mode=GST_PAD_MODE_PUSH, active=0)
at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2292
#4  0x00007f6ebb084d1e in activate_mode_internal (pad=0x7f6e90009230,
parent=0x7f6e90007000, mode=GST_PAD_MODE_PUSH, active=0) at
../subprojects/gstreamer/gst/gstpad.c:1178
#5  0x00007f6ebb0848bb in gst_pad_set_active (pad=0x7f6e90009230, active=0) at
../subprojects/gstreamer/gst/gstpad.c:1079
#6  0x00007f6ebb066f04 in activate_pads (vpad=0x7fff545631b0,
ret=0x7fff54563200, active=0x7fff54563234) at
../subprojects/gstreamer/gst/gstelement.c:2825
#7  0x00007f6ebb079b7f in gst_iterator_fold (it=0x2775bf0, func=0x7f6ebb066ec5
<activate_pads>, ret=0x7fff54563200, user_data=0x7fff54563234) at
../subprojects/gstreamer/gst/gstiterator.c:616
#8  0x00007f6ebb066f98 in iterator_activate_fold_with_resync (iter=0x2775bf0,
func=0x7f6ebb066ec5 <activate_pads>, user_data=0x7fff54563234) at
../subprojects/gstreamer/gst/gstelement.c:2849
#9  0x00007f6ebb0670c6 in gst_element_pads_activate (element=0x7f6e90007000,
active=0) at ../subprojects/gstreamer/gst/gstelement.c:2893
#10 0x00007f6ebb0673bc in gst_element_change_state_func
(element=0x7f6e90007000, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at
../subprojects/gstreamer/gst/gstelement.c:2959
#11 0x00007f6eb30406fd in gst_queue2_change_state (element=0x7f6e90007000,
transition=GST_STATE_CHANGE_PAUSED_TO_READY) at
../subprojects/gstreamer/plugins/elements/gstqueue2.c:3631
#12 0x00007f6ebb066a21 in gst_element_change_state (element=0x7f6e90007000,
transition=GST_STATE_CHANGE_PAUSED_TO_READY) at
../subprojects/gstreamer/gst/gstelement.c:2737
#13 0x00007f6ebb0667b1 in gst_element_set_state_func (element=0x7f6e90007000,
state=GST_STATE_READY) at ../subprojects/gstreamer/gst/gstelement.c:2691
#14 0x00007f6ebb0663ad in gst_element_set_state (element=0x7f6e90007000,
state=GST_STATE_READY) at ../subprojects/gstreamer/gst/gstelement.c:2592
#15 0x00007f6ebb03785d in gst_bin_element_set_state (bin=0x7f6ea0143dd0,
element=0x7f6e90007000, base_time=1479795396139049000, start_time=0,
current=GST_STATE_PAUSED, next=GST_STATE_READY) at
../subprojects/gstreamer/gst/gstbin.c:2613
#16 0x00007f6ebb038e43 in gst_bin_change_state_func (element=0x7f6ea0143dd0,
transition=GST_STATE_CHANGE_PAUSED_TO_READY) at
../subprojects/gstreamer/gst/gstbin.c:2955
#17 0x00007f6ebb066a21 in gst_element_change_state (element=0x7f6ea0143dd0,
transition=GST_STATE_CHANGE_PAUSED_TO_READY) at
../subprojects/gstreamer/gst/gstelement.c:2737
#18 0x00007f6ebb065f6e in gst_element_continue_state (element=0x7f6ea0143dd0,
ret=GST_STATE_CHANGE_SUCCESS) at ../subprojects/gstreamer/gst/gstelement.c:2445
#19 0x00007f6ebb066d9d in gst_element_change_state (element=0x7f6ea0143dd0,
transition=GST_STATE_CHANGE_PLAYING_TO_PAUSED) at
../subprojects/gstreamer/gst/gstelement.c:2776
#20 0x00007f6ebb0667b1 in gst_element_set_state_func (element=0x7f6ea0143dd0,
state=GST_STATE_READY) at ../subprojects/gstreamer/gst/gstelement.c:2691
#21 0x00007f6ebb0663ad in gst_element_set_state (element=0x7f6ea0143dd0,
state=GST_STATE_READY) at ../subprojects/gstreamer/gst/gstelement.c:2592
#22 0x00007f6eab5f1279 in gst_adaptive_demux_stop_tasks (demux=0x7f6ea01340c0)
at
../subprojects/gst-plugins-bad/gst-libs/gst/adaptivedemux/gstadaptivedemux.c:1789
#23 0x00007f6eab5ef754 in gst_adaptive_demux_handle_seek_event
(demux=0x7f6ea01340c0, pad=0x7f6ea0136280, event=0x2340350) at
../subprojects/gst-plugins-bad/gst-libs/gst/adaptivedemux/gstadaptivedemux.c:1407
#24 0x00007f6eab5eff81 in gst_adaptive_demux_src_event (pad=0x7f6ea0136280,
parent=0x7f6ea01340c0, event=0x2340350) at
../subprojects/gst-plugins-bad/gst-libs/gst/adaptivedemux/gstadaptivedemux.c:1566
#25 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6ea0136280,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#26 0x00007f6ebb093f88 in gst_pad_send_event (pad=0x7f6ea0136280,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5779
#27 0x00007f6ebb039b67 in gst_bin_send_event (element=0x7f6ea01340c0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstbin.c:3201
#28 0x00007f6ebb063e64 in gst_element_send_event (element=0x7f6ea01340c0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstelement.c:1644
#29 0x00007f6eb3286252 in gst_decode_pad_event (pad=0x7f6ea00365b0,
parent=0x7f6ea002c030, event=0x2340350) at
../subprojects/gst-plugins-base/gst/playback/gstdecodebin2.c:5020
#30 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6ea00365b0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#31 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6ea0033d10,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#32 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6ea0033d10,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#33 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6ea0033d10,
data=0x7fff54563e90) at ../subprojects/gstreamer/gst/gstpad.c:2994
#34 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6ea002fd90,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54563e90) at
../subprojects/gstreamer/gst/gstpad.c:2948
#35 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6ea002fd90,
parent=0x232a090, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#36 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6ea002fd90,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#37 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e88138050,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#38 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e88138050,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#39 0x00007f6eb30241f4 in gst_input_selector_event (pad=0x7f6e9c0136e0,
parent=0x7f6e88136020, event=0x2340350) at
../subprojects/gstreamer/plugins/elements/gstinputselector.c:1551
#40 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e9c0138f0, parent=0x7f6e88136020, event=0x2340350,
handler=0x7f6eb30240fa <gst_input_selector_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#41 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e9c0136e0, parent=0x7f6e88136020, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#42 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e9c0136e0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#43 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e88132530,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#44 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e88132530,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#45 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e88132530,
data=0x7fff545644f0) at ../subprojects/gstreamer/gst/gstpad.c:2994
#46 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e88134630,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff545644f0) at
../subprojects/gstreamer/gst/gstpad.c:2948
#47 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e88134630,
parent=0x7f6e88132530, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#48 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e88134630,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#49 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8817a4b0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#50 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8817a4b0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#51 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e8817a4b0,
data=0x7fff54564810) at ../subprojects/gstreamer/gst/gstpad.c:2994
#52 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e8817a6f0,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54564810) at
../subprojects/gstreamer/gst/gstpad.c:2948
#53 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e8817a6f0,
parent=0x22186e0, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#54 0x00007f6eb32eb53a in gst_stream_synchronizer_src_event
(pad=0x7f6e8817a6f0, parent=0x22186e0, event=0x2340350) at
../subprojects/gst-plugins-base/gst/playback/gststreamsynchronizer.c:203
#55 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e8817a900, parent=0x22186e0, event=0x2340350,
handler=0x7f6eb32ead4c <gst_stream_synchronizer_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#56 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8817a6f0, parent=0x22186e0, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#57 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8817a6f0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#58 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e88132ef0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#59 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e88132ef0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#60 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e88132ef0,
data=0x7fff54564c80) at ../subprojects/gstreamer/gst/gstpad.c:2994
#61 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e88134f70,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54564c80) at
../subprojects/gstreamer/gst/gstpad.c:2948
#62 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e88134f70,
parent=0x7f6e88132ef0, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#63 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e88134f70,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#64 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8817adb0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#65 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8817adb0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#66 0x00007f6eb8390bdb in gst_base_transform_src_eventfunc
(trans=0x7f6e8817d7c0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:2019
#67 0x00007f6eb8390add in gst_base_transform_src_event (pad=0x7f6e8817aff0,
parent=0x7f6e8817d7c0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1986
#68 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e8817bd40, parent=0x7f6e8817d7c0, event=0x2340350,
handler=0x7f6eb8390a71 <gst_base_transform_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#69 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8817aff0, parent=0x7f6e8817d7c0, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#70 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8817aff0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#71 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8817b230,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#72 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8817b230,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#73 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e8817b230,
data=0x7fff54565310) at ../subprojects/gstreamer/gst/gstpad.c:2994
#74 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e8817b470,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54565310) at
../subprojects/gstreamer/gst/gstpad.c:2948
#75 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e8817b470,
parent=0x7f6e8818e370, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#76 0x00007f6e695dec6d in gst_deinterlace_src_event (pad=0x7f6e8817b470,
parent=0x7f6e8818e370, event=0x2340350) at
../subprojects/gst-plugins-good/gst/deinterlace/gstdeinterlace.c:3051
#77 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e8817b8c0, parent=0x7f6e8818e370, event=0x2340350,
handler=0x7f6e695deb79 <gst_deinterlace_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#78 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8817b470, parent=0x7f6e8818e370, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#79 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8817b470,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#80 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e881351c0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#81 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e881351c0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#82 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e881351c0,
data=0x7fff54565740) at ../subprojects/gstreamer/gst/gstpad.c:2994
#83 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e88133160,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54565740) at
../subprojects/gstreamer/gst/gstpad.c:2948
#84 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e88133160,
parent=0x7f6e9c00a5a0, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#85 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e88133160,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#86 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e88132c80,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#87 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e88132c80,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#88 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e88132c80,
data=0x7fff54565a60) at ../subprojects/gstreamer/gst/gstpad.c:2994
#89 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e88134d20,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54565a60) at
../subprojects/gstreamer/gst/gstpad.c:2948
#90 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e88134d20,
parent=0x7f6e88132c80, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#91 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e88134d20,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#92 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8813a940,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#93 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8813a940,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#94 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e8813a940,
data=0x7fff54565d80) at ../subprojects/gstreamer/gst/gstpad.c:2994
#95 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e8813ab80,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54565d80) at
../subprojects/gstreamer/gst/gstpad.c:2948
#96 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e8813ab80,
parent=0x7f6e88138600, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#97 0x00007f6eb30482ed in gst_queue_handle_src_event (pad=0x7f6e8813ab80,
parent=0x7f6e88138600, event=0x2340350) at
../subprojects/gstreamer/plugins/elements/gstqueue.c:1567
#98 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e881958d0, parent=0x7f6e88138600, event=0x2340350,
handler=0x7f6eb30481b9 <gst_queue_handle_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#99 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8813ab80, parent=0x7f6e88138600, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#100 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8813ab80,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#101 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e881327a0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#102 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e881327a0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#103 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e881327a0,
data=0x7fff54566190) at ../subprojects/gstreamer/gst/gstpad.c:2994
#104 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e88134880,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff54566190) at
../subprojects/gstreamer/gst/gstpad.c:2948
#105 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e88134880,
parent=0x7f6e881327a0, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#106 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e88134880,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#107 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8817a030,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#108 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8817a030,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#109 0x00007f6eb8390bdb in gst_base_transform_src_eventfunc
(trans=0x7f6e881740d0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:2019
#110 0x00007f6eb8390add in gst_base_transform_src_event (pad=0x7f6e8817a270,
parent=0x7f6e881740d0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1986
#111 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e88194fd0, parent=0x7f6e881740d0, event=0x2340350,
handler=0x7f6eb8390a71 <gst_base_transform_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#112 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8817a270, parent=0x7f6e881740d0, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#113 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8817a270,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#114 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8813bd80,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#115 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8813bd80,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#116 0x00007f6eb8390bdb in gst_base_transform_src_eventfunc
(trans=0x7f6e881760d0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:2019
#117 0x00007f6e6980f9dd in gst_video_scale_src_event (trans=0x7f6e881760d0,
event=0x2340350) at
../subprojects/gst-plugins-base/gst/videoscale/gstvideoscale.c:1123
#118 0x00007f6eb8390add in gst_base_transform_src_event (pad=0x7f6e8813bb40,
parent=0x7f6e881760d0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1986
#119 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e88194b50, parent=0x7f6e881760d0, event=0x2340350,
handler=0x7f6eb8390a71 <gst_base_transform_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#120 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8813bb40, parent=0x7f6e881760d0, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#121 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8813bb40,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#122 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8813b240,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#123 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8813b240,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#124 0x00007f6eb8390bdb in gst_base_transform_src_eventfunc
(trans=0x7f6e8814bf80, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:2019
#125 0x00007f6eb8390add in gst_base_transform_src_event (pad=0x7f6e8813b480,
parent=0x7f6e8814bf80, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1986
#126 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e881946d0, parent=0x7f6e8814bf80, event=0x2340350,
handler=0x7f6eb8390a71 <gst_base_transform_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#127 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8813b480, parent=0x7f6e8814bf80, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#128 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8813b480,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#129 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e8813b900,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#130 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e8813b900,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#131 0x00007f6eb8390bdb in gst_base_transform_src_eventfunc
(trans=0x7f6e881798d0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:2019
#132 0x00007f6eb8390add in gst_base_transform_src_event (pad=0x7f6e8813b6c0,
parent=0x7f6e881798d0, event=0x2340350) at
../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1986
#133 0x00007f6ebb36a56a in gst_validate_pad_monitor_src_event_check
(pad_monitor=0x7f6e88194250, parent=0x7f6e881798d0, event=0x2340350,
handler=0x7f6eb8390a71 <gst_base_transform_src_event>) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:1953
#134 0x00007f6ebb36c654 in gst_validate_pad_monitor_src_event_func
(pad=0x7f6e8813b6c0, parent=0x7f6e881798d0, event=0x2340350) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2213
#135 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e8813b6c0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#136 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x7f6e88134ad0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#137 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x7f6e88134ad0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstpad.c:5402
#138 0x00007f6ebb08aa79 in event_forward_func (pad=0x7f6e88134ad0,
data=0x7fff545672c0) at ../subprojects/gstreamer/gst/gstpad.c:2994
#139 0x00007f6ebb08a87b in gst_pad_forward (pad=0x7f6e88132a10,
forward=0x7f6ebb08a952 <event_forward_func>, user_data=0x7fff545672c0) at
../subprojects/gstreamer/gst/gstpad.c:2948
#140 0x00007f6ebb08ac2d in gst_pad_event_default (pad=0x7f6e88132a10,
parent=0x7f6e88144190, event=0x2340350) at
../subprojects/gstreamer/gst/gstpad.c:3045
#141 0x00007f6ebb093808 in gst_pad_send_event_unchecked (pad=0x7f6e88132a10,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5609
#142 0x00007f6ebb092281 in gst_pad_push_event_unchecked (pad=0x231e2b0,
event=0x2340350, type=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at
../subprojects/gstreamer/gst/gstpad.c:5265
#143 0x00007f6ebb092a78 in gst_pad_push_event (pad=0x231e2b0, event=0x2340350)
at ../subprojects/gstreamer/gst/gstpad.c:5402
#144 0x00007f6eb837cffd in gst_base_sink_send_event (element=0x231cfb0,
event=0x2340350) at ../subprojects/gstreamer/libs/gst/base/gstbasesink.c:4503
#145 0x00007f6ebb063e64 in gst_element_send_event (element=0x231cfb0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstelement.c:1644
#146 0x00007f6ebb0398f2 in gst_bin_send_event (element=0x7f6e9c00a400,
event=0x2340350) at ../subprojects/gstreamer/gst/gstbin.c:3160
#147 0x00007f6ebb063e64 in gst_element_send_event (element=0x7f6e9c00a400,
event=0x2340350) at ../subprojects/gstreamer/gst/gstelement.c:1644
#148 0x00007f6eb32dcc51 in gst_play_sink_send_event_to_sink
(playsink=0x23160b0, event=0x2340350, force_video=0) at
../subprojects/gst-plugins-base/gst/playback/gstplaysink.c:4746
#149 0x00007f6eb32dcf03 in gst_play_sink_send_event (element=0x23160b0,
event=0x2340350) at
../subprojects/gst-plugins-base/gst/playback/gstplaysink.c:4790
#150 0x00007f6ebb063e64 in gst_element_send_event (element=0x23160b0,
event=0x2340350) at ../subprojects/gstreamer/gst/gstelement.c:1644
#151 0x00007f6eb32b86b0 in gst_play_bin_send_event (element=0x2311b80,
event=0x2340350) at
../subprojects/gst-plugins-base/gst/playback/gstplaybin2.c:4302
#152 0x00007f6ebb063e64 in gst_element_send_event (element=0x2311b80,
event=0x2340350) at ../subprojects/gstreamer/gst/gstelement.c:1644
#153 0x00007f6ebb372f17 in gst_validate_scenario_execute_seek
(scenario=0x2301360, action=0x2323010, rate=1, format=GST_FORMAT_TIME, flags=3,
start_type=GST_SEEK_TYPE_SET, start=0, stop_type=GST_SEEK_TYPE_SET,
stop=5000000000) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c:577
#154 0x00007f6ebb3735a9 in _execute_seek (scenario=0x2301360, action=0x2323010)
at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c:630
#155 0x00007f6ebb37716c in gst_validate_execute_action (action_type=0x23041b0,
action=0x2323010) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c:1503
#156 0x00007f6ebb3781b8 in execute_next_action (scenario=0x2301360) at
../subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c:1813
#157 0x00007f6ebad20eb3 in  () at /usr/lib/libglib-2.0.so.0
#158 0x00007f6ebad2043a in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#159 0x00007f6ebad207f0 in  () at /usr/lib/libglib-2.0.so.0
#160 0x00007f6ebad20b12 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#161 0x0000000000403903 in main (argc=5, argv=0x7fff54567e68) at
../subprojects/gst-devtools/validate/tools/gst-validate.c:494

Basically problem is as follow:

 * T1. Validate scenario is seeking
    -> dashdemux reset it the internal src bin (which contains a queue2) state
to READY
    -> GstElement deactivate the queue2 src pad, bringing down the queue src
pad task in gst_queue2_src_activate_push
        (From what I can say, right after the task is paused, we get to T3
action)
    -> GstElement deactivate the queue2 sink pad trying to get the sinkpad
STREAM_LOCK

 * T3. Waiting for a ALLOCATION query to be processed but there is no srcpad
thread anymore to process it

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