(gdb) thread apply all bt full

Thread 13 (Thread 0x7fe00541e700 (LWP 2649)):
#0  0x00007fe010b4a773 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fe011075f68 in g_main_context_poll (n_fds=1, fds=0x1724f70, timeout=-1, context=0x1610820, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0x7fe0110844c0 <g_poll>
#2  g_main_context_iterate (context=0x1610820, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x1724f70
#3  0x00007fe011076792 in g_main_loop_run (loop=0x1726310) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fe0058389cb in ?? () from /usr/lib/gio/modules/libdconfsettings.so
No symbol table info available.
#5  0x00007fe01109b2b6 in g_thread_create_proxy (data=0x1613f20) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x1613f20
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 12 (Thread 0x7fe004c1d700 (LWP 2650)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fe00f60a892 in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib/libjavascriptcoregtk-3.0.so.0
No symbol table info available.
#2  0x00007fe00f60a8b9 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib/libjavascriptcoregtk-3.0.so.0
No symbol table info available.
#3  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#4  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 11 (Thread 0x7fdfbfffd700 (LWP 2651)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fe013cae689 in WebCore::IconDatabase::syncThreadMainLoop() () from /usr/lib/libwebkitgtk-3.0.so.0
No symbol table info available.
#2  0x00007fe013cafe22 in WebCore::IconDatabase::iconDatabaseSyncThread() () from /usr/lib/libwebkitgtk-3.0.so.0
No symbol table info available.
#3  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#4  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 10 (Thread 0x7fdfbf7fc700 (LWP 2652)):
#0  0x00007fe010b4a773 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fe011075f68 in g_main_context_poll (n_fds=5, fds=0x7fe00001c4a0, timeout=-1, context=0x17477e0, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0x7fe0110844c0 <g_poll>
#2  g_main_context_iterate (context=0x17477e0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = <optimized out>
        fds = 0x7fe00001c4a0
#3  0x00007fe011076792 in g_main_loop_run (loop=0x1747790) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fe011a3f516 in gdbus_shared_thread_func (user_data=0x17477b0) at /build/buildd/glib2.0-2.30.0/./gio/gdbusprivate.c:276
        data = 0x17477b0
#5  0x00007fe01109b2b6 in g_thread_create_proxy (data=0x1747100) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x1747100
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 9 (Thread 0x7fdfb4cad700 (LWP 2732)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fe00e0b21ef in gst_task_func (task=0x18948a0) at gsttask.c:303
        t = <optimized out>
        lock = 0x1c22b00
        tself = 0x1f9b560
        priv = 0x1894940
        __PRETTY_FUNCTION__ = "gst_task_func"
#2  0x00007fe01109d7d8 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:319
        task = 0x18e8c10
        pool = 0x18a2e80
#3  0x00007fe01109b2b6 in g_thread_create_proxy (data=0x1f9b560) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x1f9b560
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#4  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#5  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#6  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 8 (Thread 0x7fdf9bcb1700 (LWP 2765)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fdfb68ad7dd in gst_queue_chain (pad=<optimized out>, buffer=0x1877490) at gstqueue.c:1013
        queue = 0x1d62550
        duration = <optimized out>
        timestamp = <optimized out>
        __PRETTY_FUNCTION__ = "gst_queue_chain"
#2  0x00007fe00e08be0a in gst_pad_push (pad=0x17a16c0, buffer=0x1877490) at gstpad.c:4684
        cache = 0x1bb6270
        ret = <optimized out>
        cache_ptr = 0x17a1838
        peer = 0x17a1540
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#3  0x00007fdfb68b864f in gst_tee_chain (pad=<optimized out>, buffer=0x1877490) at gsttee.c:827
        res = <optimized out>
        tee = 0x1f0e760
        __PRETTY_FUNCTION__ = "gst_tee_chain"
#4  0x00007fe00e08be0a in gst_pad_push (pad=0x1b58bf0, buffer=0x1877490) at gstpad.c:4684
        cache = 0x18cea40
        ret = <optimized out>
        cache_ptr = 0x1b58d78
        peer = 0x17a1840
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#5  0x00007fe00e08be0a in gst_pad_push (pad=0x2185cc0, buffer=0x1877490) at gstpad.c:4684
        cache = 0x1ba6e20
        ret = <optimized out>
        cache_ptr = 0x2185e38
        peer = 0x25ae8c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#6  0x00007fe00e563e87 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2458
        last_stop_out = <optimized out>
        trans = 0x7fdfa036b0f0
        klass = <optimized out>
        ret = GST_FLOW_OK
        last_stop = 900000000
        timestamp = <optimized out>
        duration = <optimized out>
        outbuf = 0x1877490
#7  0x00007fe00e08be0a in gst_pad_push (pad=0x21859c0, buffer=0x1877490) at gstpad.c:4684
        cache = 0x18e8d60
        ret = <optimized out>
        cache_ptr = 0x2185b38
        peer = 0x2185b40
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#8  0x00007fe00e563e87 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2458
        last_stop_out = <optimized out>
        trans = 0x7fe0001c01a0
        klass = <optimized out>
        ret = GST_FLOW_OK
        last_stop = 900000000
        timestamp = <optimized out>
        duration = <optimized out>
        outbuf = 0x1877490
#9  0x00007fe00e08be0a in gst_pad_push (pad=0x21c7240, buffer=0x1846b00) at gstpad.c:4684
        cache = 0x7fe000026630
        ret = <optimized out>
        cache_ptr = 0x21c73b8
        peer = 0x21850c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#10 0x00007fdfb68ae6ea in gst_queue_push_one (queue=0x1d62f50) at gstqueue.c:1155
        buffer = 0x1846b00
        caps = 0x1f00500
        data = <optimized out>
        is_buffer = 1
        result = GST_FLOW_OK
#11 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1263
        queue = 0x1d62f50
        __PRETTY_FUNCTION__ = "gst_queue_loop"
#12 0x00007fe00e0b2064 in gst_task_func (task=0x18c2780) at gsttask.c:318
        lock = 0x216f1c0
        tself = 0x7fdfa01c4990
        priv = 0x18c2820
        __PRETTY_FUNCTION__ = "gst_task_func"
#13 0x00007fe01109d7d8 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:319
        task = 0x18ced50
        pool = 0x18a2e80
#14 0x00007fe01109b2b6 in g_thread_create_proxy (data=0x7fdfa01c4990) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x7fdfa01c4990
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#15 0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#16 0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#17 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 7 (Thread 0x7fdf9b4b0700 (LWP 2766)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fdfb68ad7dd in gst_queue_chain (pad=<optimized out>, buffer=0x7fe000027230) at gstqueue.c:1013
        queue = 0x1d62f50
        duration = <optimized out>
        timestamp = <optimized out>
        __PRETTY_FUNCTION__ = "gst_queue_chain"
#2  0x00007fe00e08be0a in gst_pad_push (pad=0x25b0a50, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e2970
        ret = <optimized out>
        cache_ptr = 0x25b0bd8
        peer = 0x1f059c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#3  0x00007fe00e08be0a in gst_pad_push (pad=0x1f10680, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x19f0ac0
        ret = <optimized out>
        cache_ptr = 0x1f107f8
        peer = 0x25ae700
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#4  0x00007fdfbd80b4ac in ?? () from /usr/lib/gstreamer-0.10/libgstplaybin.so
No symbol table info available.
#5  0x00007fe00e08be0a in gst_pad_push (pad=0x25b08a0, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18f0ec0
        ret = <optimized out>
        cache_ptr = 0x25b0a28
        peer = 0x27d1d90
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#6  0x00007fe00e08be0a in gst_pad_push (pad=0x21c70c0, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x1bb6230
        ret = <optimized out>
        cache_ptr = 0x21c7238
        peer = 0x217f700
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#7  0x00007fdfb68a4a0a in gst_selector_pad_chain (pad=0x17457c0, buf=0x7fe000027230) at gstinputselector.c:732
        sel = 0x192a000
        res = <optimized out>
        active_sinkpad = <optimized out>
        prev_active_sinkpad = 0x17457c0
        selpad = 0x17457c0
        start_time = <optimized out>
        seg = 0x1745950
        close_event = 0x0
        start_event = 0x0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_selector_pad_chain"
#8  0x00007fe00e08be0a in gst_pad_push (pad=0x217f380, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x19f0aa0
        ret = <optimized out>
        cache_ptr = 0x217f508
        peer = 0x17457c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#9  0x00007fe00e08be0a in gst_pad_push (pad=0x1ea1650, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x1bb6240
        ret = <optimized out>
        cache_ptr = 0x1ea17f8
        peer = 0x7fe000210570
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#10 0x00007fe00e08be0a in gst_pad_push (pad=0x1f05840, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x1ba1700
        ret = <optimized out>
        cache_ptr = 0x1f059b8
        peer = 0x7fe0002103c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#11 0x00007fdfb68ba8cf in gst_type_find_element_chain (pad=<optimized out>, buffer=0x7fe000027230) at gsttypefindelement.c:771
        typefind = 0x1f0eaf0
        res = GST_FLOW_OK
        __PRETTY_FUNCTION__ = "gst_type_find_element_chain"
#12 0x00007fe00e08be0a in gst_pad_push (pad=0x7fdfb0003720, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e2bc0
        ret = <optimized out>
        cache_ptr = 0x7fdfb00038a8
        peer = 0x1f050c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#13 0x00007fe00e08be0a in gst_pad_push (pad=0x7fdfa01a91c0, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e2920
        ret = <optimized out>
        cache_ptr = 0x7fdfa01a9348
        peer = 0x25c9000
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#14 0x00007fe00e08be0a in gst_pad_push (pad=0x217fe00, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x19ce360
        ret = <optimized out>
        cache_ptr = 0x217ff88
        peer = 0x1faa530
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#15 0x00007fe00e08be0a in gst_pad_push (pad=0x7fdfa01a98c0, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x7fe0000267a0
        ret = <optimized out>
        cache_ptr = 0x7fdfa01a9a48
        peer = 0x1faa890
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#16 0x00007fe00e08be0a in gst_pad_push (pad=0x7fdfa01c5c40, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e28a0
        ret = <optimized out>
        cache_ptr = 0x7fdfa01c5dc8
        peer = 0x7fdfa01c2dd0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#17 0x00007fe00e08be0a in gst_pad_push (pad=0x1f08e00, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e2b60
        ret = <optimized out>
        cache_ptr = 0x1f08f88
        peer = 0x25b06f0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#18 0x00007fe00e08be0a in gst_pad_push (pad=0x1f08c40, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e2910
        ret = <optimized out>
        cache_ptr = 0x1f08dc8
        peer = 0x1e44080
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#19 0x00007fe00e08be0a in gst_pad_push (pad=0x1e1a500, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e2850
        ret = <optimized out>
        cache_ptr = 0x1e1a678
        peer = 0x1f09e10
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#20 0x00007fe00e563e87 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2458
        last_stop_out = <optimized out>
        trans = 0x1f1d400
        klass = <optimized out>
        ret = GST_FLOW_OK
        last_stop = 1033333333
        timestamp = <optimized out>
        duration = <optimized out>
        outbuf = 0x7fe000027230
#21 0x00007fe00e08be0a in gst_pad_push (pad=0x1e1a680, buffer=0x7fe000027230) at gstpad.c:4684
        cache = 0x18e29a0
        ret = <optimized out>
        cache_ptr = 0x1e1a7f8
        peer = 0x1e1a380
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#22 0x00007fdf9f0b31e9 in gst_videomixer2_collected (pads=<optimized out>, mix=0x183bbe0) at videomixer2.c:1026
        ret = <optimized out>
        output_start_time = 140598422726016
        output_end_time = 1033333333
        outbuf = 0x7fe000027230
        jitter = 0
        __FUNCTION__ = "gst_videomixer2_collected"
#23 0x00007fdf9f0b9bac in gst_collect_pads2_event (pad=<optimized out>, event=0x2118140) at gstcollectpads2.c:1646
        res = 0
        need_unlock = 0
        data = 0x1e1cbe0
        pads = 0x1e1b000
        event_func = 0x7fdf9f0b2620 <gst_videomixer2_sink_event>
        buffer_func = 0
        event_user_data = 0x183bbe0
        __FUNCTION__ = "gst_collect_pads2_event"
#24 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x17f96e0, event=0x2118140) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fdf9f0b9720 <gst_collect_pads2_event>
        serialized = <optimized out>
        need_unlock = 1
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#25 0x00007fe00e08d183 in gst_pad_push_event (pad=0x1dfeb30, event=0x2118140) at gstpad.c:5250
        peerpad = 0x17f96e0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#26 0x00007fe00e560a9f in gst_base_transform_sink_event (pad=<optimized out>, event=0x2118140) at gstbasetransform.c:2021
        trans = 0x1f98d40
        bclass = <optimized out>
        ret = 1
        forward = <optimized out>
#27 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x1dfe9b0, event=0x2118140) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fe00e560a40 <gst_base_transform_sink_event>
        serialized = <optimized out>
        need_unlock = 1
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#28 0x00007fe00e08d183 in gst_pad_push_event (pad=0x1dfe530, event=0x2118140) at gstpad.c:5250
        peerpad = 0x1dfe9b0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#29 0x00007fe00e560a9f in gst_base_transform_sink_event (pad=<optimized out>, event=0x2118140) at gstbasetransform.c:2021
        trans = 0x1f1cd60
        bclass = <optimized out>
        ret = 1
        forward = <optimized out>
#30 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x1dfe3b0, event=0x2118140) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fe00e560a40 <gst_base_transform_sink_event>
        serialized = <optimized out>
        need_unlock = 1
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#31 0x00007fe00e08d183 in gst_pad_push_event (pad=0x1f09ab0, event=0x2118140) at gstpad.c:5250
        peerpad = 0x1dfe3b0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#32 0x00007fe00e076901 in gst_proxy_pad_do_event (pad=<optimized out>, event=0x2118140) at gstghostpad.c:114
        res = 0
        internal = 0x1f09ab0
#33 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x17a21c0, event=0x2118140) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fe00e0768d0 <gst_proxy_pad_do_event>
        serialized = <optimized out>
        need_unlock = 1
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#34 0x00007fe00e08d183 in gst_pad_push_event (pad=0x1e443e0, event=0x2118140) at gstpad.c:5250
        peerpad = 0x17a21c0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#35 0x00007fe00e076901 in gst_proxy_pad_do_event (pad=<optimized out>, event=0x2118140) at gstghostpad.c:114
        res = 0
        internal = 0x1e443e0
#36 0x00007fdfb667fe35 in ghostpad_event_function (ghostpad=0x1e451c0, event=0x2118140) at gnlghostpad.c:516
        priv = 0x1e5e210
        object = <optimized out>
        ret = 0
        __FUNCTION__ = "ghostpad_event_function"
#37 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x1e451c0, event=0x2118140) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fdfb667fd40 <ghostpad_event_function>
        serialized = <optimized out>
        need_unlock = 1
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#38 0x00007fe00e08d183 in gst_pad_push_event (pad=0x217f000, event=0x2118140) at gstpad.c:5250
        peerpad = 0x1e451c0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#39 0x00007fe00e076901 in gst_proxy_pad_do_event (pad=<optimized out>, event=0x2118140) at gstghostpad.c:114
        res = 0
        internal = 0x217f000
#40 0x00007fdfb667ec09 in internalpad_event_function (internal=0x7fdfa01c2200, event=0x2118140) at gnlghostpad.c:352
        priv = 0x7fdfa01ad6f0
        object = <optimized out>
        __FUNCTION__ = "internalpad_event_function"
#41 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x7fdfa01c2200, event=0x2118140) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fdfb667eb50 <internalpad_event_function>
        serialized = <optimized out>
        need_unlock = 1
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#42 0x00007fe00e08d183 in gst_pad_push_event (pad=0x2116c80, event=0x2118140) at gstpad.c:5250
        peerpad = 0x7fdfa01c2200
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#43 0x00007fe00e55c7f3 in gst_base_src_loop (pad=0x2116c80) at gstbasesrc.c:2568
        flag_segment = <optimized out>
        format = <optimized out>
        last_stop = <optimized out>
        reason = 0x7fe00e0dd049 "unexpected"
        event = 0x2118140
        src = 0x2113130
        buf = 0x1898f10
        ret = <optimized out>
        position = <optimized out>
        eos = <optimized out>
        blocksize = <optimized out>
        pending_events = <optimized out>
        tmp = <optimized out>
        __PRETTY_FUNCTION__ = "gst_base_src_loop"
#44 0x00007fe00e0b2064 in gst_task_func (task=0x1894da0) at gsttask.c:318
        lock = 0x7fdfb0081580
        tself = 0x1fab220
        priv = 0x1894e40
        __PRETTY_FUNCTION__ = "gst_task_func"
#45 0x00007fe01109d7d8 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:319
        task = 0x18ced50
        pool = 0x18a2e80
#46 0x00007fe01109b2b6 in g_thread_create_proxy (data=0x1fab220) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x1fab220
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#47 0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#48 0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#49 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 6 (Thread 0x7fdf9acaf700 (LWP 2768)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fe01457e1c3 in webkit_video_sink_render(_GstBaseSink*, _GstBuffer*) () from /usr/lib/libwebkitgtk-3.0.so.0
No symbol table info available.
#2  0x00007fe00e553ba9 in gst_base_sink_render_object (basesink=0x216d000, obj_type=<optimized out>, obj=0x19cc0c0, pad=<optimized out>) at gstbasesink.c:3005
        buf = 0x19cc0c0
        do_qos = 1
        ret = <optimized out>
        bclass = 0x1c91800
        late = 0
        step_end = 0
        sync_obj = 0x19cc0c0
        priv = 0x216d290
#3  0x00007fe00e5563df in gst_base_sink_queue_object_unlocked (basesink=0x216d000, obj_type=2 '\002', obj=0x19cc0c0, prerollable=<optimized out>, pad=<optimized out>) at gstbasesink.c:3286
        ret = <optimized out>
        length = <optimized out>
        q = 0x7fdfa01acc40
#4  0x00007fe00e556737 in gst_base_sink_chain_unlocked (basesink=0x216d000, obj_type=2 '\002', obj=0x19cc0c0, pad=<optimized out>) at gstbasesink.c:3665
        bclass = <optimized out>
        start = 3833333333
        end = 3866666666
        clip_segment = 0x7fdfa036fec0
        time_buf = <optimized out>
#5  0x00007fe00e556b1f in gst_base_sink_chain_main (basesink=0x216d000, pad=0x17a10c0, obj_type=2 '\002', obj=0x19cc0c0) at gstbasesink.c:3703
        result = <optimized out>
#6  0x00007fe00e088452 in gst_pad_chain_data_unchecked (cache=0x0, data=0x19cc0c0, is_buffer=1, pad=0x17a10c0) at gstpad.c:4247
        chainfunc = 0x7fe00e556d60 <gst_base_sink_chain>
        emit_signal = <optimized out>
        caps_changed = <optimized out>
        ret = <optimized out>
        caps = 0x2178cc0
#7  gst_pad_push_data (pad=<optimized out>, is_buffer=1, data=0x19cc0c0, cache=0x0) at gstpad.c:4479
        peer = 0x17a10c0
        ret = <optimized out>
        caps = 0x0
        caps_changed = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_data"
#8  0x00007fe00e08bcf6 in gst_pad_push (pad=0x1f09090, buffer=0x19cc0c0) at gstpad.c:4704
        scache = {peer = 0x0, caps = 0x0}
        cache = 0x0
        ret = <optimized out>
        cache_ptr = 0x1f09218
        peer = <optimized out>
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#9  0x00007fe00e08be0a in gst_pad_push (pad=0x17a19c0, buffer=0x19cc0c0) at gstpad.c:4684
        cache = 0x1ba1680
        ret = <optimized out>
        cache_ptr = 0x17a1b38
        peer = 0x27d31c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#10 0x00007fe00e563e87 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2458
        last_stop_out = <optimized out>
        trans = 0x1d66990
        klass = <optimized out>
        ret = GST_FLOW_OK
        last_stop = 3866666666
        timestamp = <optimized out>
        duration = <optimized out>
        outbuf = 0x19cc0c0
#11 0x00007fe00e08be0a in gst_pad_push (pad=0x17a1b40, buffer=0x19cc0c0) at gstpad.c:4684
        cache = 0x1baf490
        ret = <optimized out>
        cache_ptr = 0x17a1cb8
        peer = 0x17a13c0
        caps = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push"
#12 0x00007fdfb68ae6ea in gst_queue_push_one (queue=0x1d62550) at gstqueue.c:1155
        buffer = 0x19cc0c0
        caps = 0x2178cc0
        data = <optimized out>
        is_buffer = 1
        result = GST_FLOW_OK
#13 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1263
        queue = 0x1d62550
        __PRETTY_FUNCTION__ = "gst_queue_loop"
#14 0x00007fe00e0b2064 in gst_task_func (task=0x18c2880) at gsttask.c:318
        lock = 0x1ba0680
        tself = 0x7fe0000420c0
        priv = 0x18c2920
        __PRETTY_FUNCTION__ = "gst_task_func"
#15 0x00007fe01109d7d8 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:319
        task = 0x19ce300
        pool = 0x18a2e80
#16 0x00007fe01109b2b6 in g_thread_create_proxy (data=0x7fe0000420c0) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x7fe0000420c0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#17 0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#18 0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#19 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 5 (Thread 0x7fdf9a4ae700 (LWP 2769)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fe00e0b21ef in gst_task_func (task=0x18949a0) at gsttask.c:303
        t = <optimized out>
        lock = 0x23e11c0
        tself = 0x7fdfb0081f60
        priv = 0x1894a40
        __PRETTY_FUNCTION__ = "gst_task_func"
#2  0x00007fe01109d7d8 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:319
        task = 0x18ca900
        pool = 0x18a2e80
#3  0x00007fe01109b2b6 in g_thread_create_proxy (data=0x7fdfb0081f60) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x7fdfb0081f60
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#4  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#5  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#6  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 4 (Thread 0x7fdf99cad700 (LWP 2772)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fdfb68ae034 in gst_queue_loop (pad=<optimized out>) at gstqueue.c:1251
        queue = 0x1d622d0
        __PRETTY_FUNCTION__ = "gst_queue_loop"
#2  0x00007fe00e0b2064 in gst_task_func (task=0x18c2680) at gsttask.c:318
        lock = 0x1d8fe80
        tself = 0x1fb1ff0
        priv = 0x18c2720
        __PRETTY_FUNCTION__ = "gst_task_func"
#3  0x00007fe01109d7d8 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:319
        task = 0x7fe0000267b0
        pool = 0x18a2e80
#4  0x00007fe01109b2b6 in g_thread_create_proxy (data=0x1fb1ff0) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x1fb1ff0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#5  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 3 (Thread 0x7fdfba3e1700 (LWP 2776)):
#0  0x00007fe010b4a773 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fdfac7fd03f in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#2  0x00007fdfac7ee45c in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#3  0x00007fdfac7eeac9 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#4  0x00007fdfac7eeb80 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#5  0x00007fdfac7fcfef in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#6  0x00007fdfac3a6c78 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
No symbol table info available.
#7  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#8  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#9  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 2 (Thread 0x7fdfb9be0700 (LWP 2778)):
#0  0x00007fe010e2004c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fe00e0b21ef in gst_task_func (task=0x18942a0) at gsttask.c:303
        t = <optimized out>
        lock = 0x7fdfb00815c0
        tself = 0x2189fb0
        priv = 0x1894340
        __PRETTY_FUNCTION__ = "gst_task_func"
#2  0x00007fe01109d7d8 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:319
        task = 0x1ba8390
        pool = 0x18a2e80
#3  0x00007fe01109b2b6 in g_thread_create_proxy (data=0x2189fb0) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x2189fb0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#4  0x00007fe010e1befc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#5  0x00007fe010b5689d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#6  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 1 (Thread 0x7fe016c209c0 (LWP 2648)):
#0  0x00007fe010e22be4 in __lll_lock_wait () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fe010e1e1e5 in _L_lock_883 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#2  0x00007fe010e1e03a in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#3  0x00007fe01109b6c8 in g_static_rec_mutex_lock (mutex=0x1e1b058) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1450
        self = {data = "\300\t\302\026\340\177\000", dummy_double = 6.9465842854828345e-310, dummy_pointer = 0x7fe016c209c0, dummy_long = 140600431217088}
        __PRETTY_FUNCTION__ = "g_static_rec_mutex_lock"
#4  0x00007fdf9f0b9cb6 in gst_collect_pads2_event (pad=<optimized out>, event=0x23db4c0) at gstcollectpads2.c:1586
        res = <optimized out>
        need_unlock = 0
        data = 0x1e1cbe0
        pads = 0x1e1b000
        event_func = 0x7fdf9f0b2620 <gst_videomixer2_sink_event>
        buffer_func = 0
        event_user_data = 0x183bbe0
        __FUNCTION__ = "gst_collect_pads2_event"
#5  0x00007fe00e08cc02 in gst_pad_send_event (pad=0x17f96e0, event=0x23db4c0) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fdf9f0b9720 <gst_collect_pads2_event>
        serialized = <optimized out>
        need_unlock = 0
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#6  0x00007fe00e08d183 in gst_pad_push_event (pad=0x1dfeb30, event=0x23db4c0) at gstpad.c:5250
        peerpad = 0x17f96e0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#7  0x00007fe00e560a9f in gst_base_transform_sink_event (pad=<optimized out>, event=0x23db4c0) at gstbasetransform.c:2021
        trans = 0x1f98d40
        bclass = <optimized out>
        ret = 1
        forward = <optimized out>
#8  0x00007fe00e08cc02 in gst_pad_send_event (pad=0x1dfe9b0, event=0x23db4c0) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fe00e560a40 <gst_base_transform_sink_event>
        serialized = <optimized out>
        need_unlock = 0
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#9  0x00007fe00e08d183 in gst_pad_push_event (pad=0x1dfe530, event=0x23db4c0) at gstpad.c:5250
        peerpad = 0x1dfe9b0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#10 0x00007fe00e560a9f in gst_base_transform_sink_event (pad=<optimized out>, event=0x23db4c0) at gstbasetransform.c:2021
        trans = 0x1f1cd60
        bclass = <optimized out>
        ret = 1
        forward = <optimized out>
#11 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x1dfe3b0, event=0x23db4c0) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fe00e560a40 <gst_base_transform_sink_event>
        serialized = <optimized out>
        need_unlock = 0
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#12 0x00007fe00e08d183 in gst_pad_push_event (pad=0x1f09ab0, event=0x23db4c0) at gstpad.c:5250
        peerpad = 0x1dfe3b0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#13 0x00007fe00e076901 in gst_proxy_pad_do_event (pad=<optimized out>, event=0x23db4c0) at gstghostpad.c:114
        res = 0
        internal = 0x1f09ab0
#14 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x17a21c0, event=0x23db4c0) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fe00e0768d0 <gst_proxy_pad_do_event>
        serialized = <optimized out>
        need_unlock = 0
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#15 0x00007fe00e08d183 in gst_pad_push_event (pad=0x1e443e0, event=0x23db4c0) at gstpad.c:5250
        peerpad = 0x17a21c0
        result = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#16 0x00007fe00e076901 in gst_proxy_pad_do_event (pad=<optimized out>, event=0x23db4c0) at gstghostpad.c:114
        res = 0
        internal = 0x1e443e0
#17 0x00007fdfb667fe35 in ghostpad_event_function (ghostpad=0x1e451c0, event=0x23db4c0) at gnlghostpad.c:516
        priv = 0x1e5e210
        object = <optimized out>
        ret = 0
        __FUNCTION__ = "ghostpad_event_function"
#18 0x00007fe00e08cc02 in gst_pad_send_event (pad=0x1e451c0, event=0x23db4c0) at gstpad.c:5398
        result = 0
        eventfunc = 0x7fdfb667fd40 <ghostpad_event_function>
        serialized = <optimized out>
        need_unlock = 0
        __PRETTY_FUNCTION__ = "gst_pad_send_event"
#19 0x00007fdfb66761fb in compare_deactivate_single_node (comp=0x1b66d10, node=0x1f060d0, newstack=0x1f06630, modify=0) at gnlcomposition.c:2083
        peerpad = 0x1e451c0
        child = <optimized out>
        newnode = 0x0
        oldparent = 0x1e5c090
        deactivate = 0x0
        oldobj = 0x1d3e4f0
        srcpad = 0x217f000
        __FUNCTION__ = "compare_deactivate_single_node"
#20 0x00007fdfb6676169 in compare_deactivate_single_node (comp=0x1b66d10, node=<optimized out>, newstack=0x1f06630, modify=0) at gnlcomposition.c:2138
        newdeac = <optimized out>
        child = 0x1f060d0
        newnode = 0x0
        oldparent = 0x0
        deactivate = <optimized out>
        oldobj = 0x1e5c090
        srcpad = 0x1f08e00
        __FUNCTION__ = "compare_deactivate_single_node"
#21 0x00007fdfb667b0f2 in compare_relink_stack (modify=0, stack=<optimized out>, comp=0x1b66d10) at gnlcomposition.c:2181
        deactivate = 0x0
#22 update_pipeline (comp=0x1b66d10, currenttime=5000000000, change_state=1, modify=0, initial=1) at gnlcomposition.c:2308
        state = GST_STATE_PLAYING
        deactivate = 0x0
        new_start = <optimized out>
        startchanged = <optimized out>
        stack = <optimized out>
        new_stop = <optimized out>
        samestack = 0
        stopchanged = <optimized out>
        ret = 1
#23 0x00007fdfb667d649 in seek_handling (comp=0x1b66d10, update=1, initial=1) at gnlcomposition.c:933
No locals.
#24 0x00007fdfb667e3db in eos_main_thread (comp=0x1b66d10) at gnlcomposition.c:621
        __FUNCTION__ = "eos_main_thread"
#25 0x00007fe011075a5d in g_main_dispatch (context=0x16595d0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0x7fe011071790 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x1b66d10
        callback = 0x7fdfb667e2d0 <eos_main_thread>
        cb_funcs = 0x7fe011325670
        cb_data = 0x1e27ab0
        current_source_link = {data = 0x21bca80, next = 0x0}
        need_destroy = <optimized out>
        source = 0x21bca80
        current = 0x1721900
        i = <optimized out>
#26 g_main_context_dispatch (context=0x16595d0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#27 0x00007fe011076258 in g_main_context_iterate (context=0x16595d0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089
        max_priority = 200
        timeout = 0
        some_ready = 1
        nfds = 7
        allocated_nfds = <optimized out>
        fds = <optimized out>
#28 0x00007fe011076792 in g_main_loop_run (loop=0x1726e60) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#29 0x00007fe012c28e1d in gtk_main () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#30 0x00007fe011a16a4e in g_application_run (application=0x173b000, argc=<optimized out>, argv=0x7fff9e8b7338) at /build/buildd/glib2.0-2.30.0/./gio/gapplication.c:1323
        arguments = 0x1726e60
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#31 0x0000000000432c8e in main ()
No symbol table info available.

