crash log for WPEWebProcess (pid 376):

[New LWP 733]
[New LWP 459]
[New LWP 394]
[New LWP 452]
[New LWP 720]
[New LWP 463]
[New LWP 469]
[New LWP 465]
[New LWP 689]
[New LWP 690]
[New LWP 691]
[New LWP 448]
[New LWP 455]
[New LWP 456]
[New LWP 458]
[New LWP 476]
[New LWP 529]
[New LWP 648]
[New LWP 692]
[New LWP 693]
[New LWP 694]
[New LWP 685]
[New LWP 708]
[New LWP 687]
[New LWP 695]
[New LWP 736]
[New LWP 392]
[New LWP 376]
[New LWP 393]
[New LWP 443]
[New LWP 647]
[New LWP 468]
[New LWP 467]
[New LWP 466]
[New LWP 457]
[New LWP 454]
[New LWP 451]
[New LWP 450]
[New LWP 395]
[New LWP 399]
[New LWP 441]
[New LWP 460]
[New LWP 674]
[New LWP 737]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/app/webkit/WebKitBuild/Release/bin/WPEWebProcess 15 20 --configure-jsc-for-tes'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fda3dc77ecc in WebCore::MediaPlayerPrivateGStreamer::pushDMABufToCompositor() () from /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
[Current thread is 1 (Thread 0x7fd93affd640 (LWP 733))]

Thread 44 (Thread 0x7fd939ffb640 (LWP 737)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fda39f2b097 in g_cond_wait_until (cond=<optimized out>, mutex=0x7fd92c00dda0, end_time=<optimized out>) at ../glib/gthread-posix.c:1654
#2  0x00007fda39ea9591 in g_async_queue_pop_intern_unlocked (queue=0x7fd92c00dda0, wait=1, end_time=360276674289) at ../glib/gasyncqueue.c:422
#3  0x00007fda39f0d6ea in g_thread_pool_wait_for_new_task (pool=0x7fd92c010770) at ../glib/gthreadpool.c:274
#4  g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:339
#5  0x00007fda39f0a722 in g_thread_proxy (data=0x7fd928009cc0) at ../glib/gthread.c:827
#6  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#7  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 43 (Thread 0x7fd990dfa640 (LWP 674)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fda39f2b097 in g_cond_wait_until (cond=<optimized out>, mutex=0x56186ba43ad0, end_time=<optimized out>) at ../glib/gthread-posix.c:1654
#2  0x00007fda39ea9591 in g_async_queue_pop_intern_unlocked (queue=0x56186ba43ad0, wait=1, end_time=360276549775) at ../glib/gasyncqueue.c:422
#3  0x00007fda39f0d6ea in g_thread_pool_wait_for_new_task (pool=0x56186b9b8a70) at ../glib/gthreadpool.c:274
#4  g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:339
#5  0x00007fda39f0a722 in g_thread_proxy (data=0x56186b9c5b60) at ../glib/gthread.c:827
#6  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#7  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 42 (Thread 0x7fd9b0ff9640 (LWP 460)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 41 (Thread 0x7fd9cdb3f640 (LWP 441)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x56186b995d00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x56186b995d00, timeout=<optimized out>, context=0x56186b9a0d20) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=context@entry=0x56186b9a0d20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39ed84a3 in g_main_context_iteration (context=0x56186b9a0d20, may_block=may_block@entry=1) at ../glib/gmain.c:4278
#4  0x00007fda39ed84f9 in glib_worker_main (data=<optimized out>) at ../glib/gmain.c:6180
#5  0x00007fda39f0a722 in g_thread_proxy (data=0x56186b96ba40) at ../glib/gthread.c:827
#6  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#7  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 40 (Thread 0x7fd9e0ffd640 (LWP 399)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x7fd9d8004bf0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fd9d8004bf0, timeout=<optimized out>, context=0x7fd9d8000b70) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x7fd9d8000b70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x7fd9d8003e70) at ../glib/gmain.c:4413
#4  0x00007fda3dbb75d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#5  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#8  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 39 (Thread 0x7fd9e37fe640 (LWP 395)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x7fd9d40047f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fd9d40047f0, timeout=<optimized out>, context=0x7fd9d4000b70) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x7fd9d4000b70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x7fd9d4003640) at ../glib/gmain.c:4413
#4  0x00007fda3dbb75d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#5  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#8  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 38 (Thread 0x7fd9c5fff640 (LWP 450)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc0052fc) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc0052fc, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc0052fc, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc0052d0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc0052d0, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 37 (Thread 0x7fd9c57fe640 (LWP 451)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc00545c) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc00545c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc00545c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc005430) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc005430, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 36 (Thread 0x7fd9b3fff640 (LWP 454)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc00571c) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc00571c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc00571c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc0056f0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc0056f0, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 35 (Thread 0x7fd9b27fc640 (LWP 457)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc005b3c) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc005b3c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc005b3c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc005b10) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc005b10, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 34 (Thread 0x7fd98affd640 (LWP 466)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 33 (Thread 0x7fd98a7fc640 (LWP 467)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 32 (Thread 0x7fd989ffb640 (LWP 468)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 31 (Thread 0x7fd991dfc640 (LWP 647)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7fd991dfb980, op=393, expected=0, futex_word=0x7fda292747e0) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fda292747e0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x7fd991dfb980, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fda292747e0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x7fd991dfb980, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda39778812 in __pthread_cond_wait_common (abstime=0x7fd991dfb980, clockid=0, mutex=<optimized out>, cond=0x7fda292747b8) at pthread_cond_wait.c:503
#4  ___pthread_cond_timedwait64 (cond=0x7fda292747b8, mutex=<optimized out>, abstime=0x7fd991dfb980) at pthread_cond_wait.c:643
#5  0x00007fda3dbbbb58 in WTF::ThreadCondition::timedWait(WTF::Mutex&, WTF::WallTime) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3db3a86b in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda3db08c61 in WTF::Detail::CallableWrapper<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::{lambda()#1}, void>::call() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#8  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#9  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#10 0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#11 0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 30 (Thread 0x7fd9cd33e640 (LWP 443)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x56186b9c0070, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=3, fds=0x56186b9c0070, timeout=<optimized out>, context=0x56186b99f800) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x56186b99f800, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x56186b99f3e0) at ../glib/gmain.c:4413
#4  0x00007fda364c6a92 in gdbus_shared_thread_func (user_data=0x56186b9c0190) at ../gio/gdbusprivate.c:282
#5  0x00007fda39f0a722 in g_thread_proxy (data=0x56186b9c5a40) at ../glib/gthread.c:827
#6  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#7  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 29 (Thread 0x7fd9e8c95640 (LWP 393)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x7fd9e4005040, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd9e4005040, timeout=<optimized out>, context=0x7fd9e4000b70) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x7fd9e4000b70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x7fd9e4003e70) at ../glib/gmain.c:4413
#4  0x00007fda3dbb75d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#5  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#8  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 28 (Thread 0x7fda3349b9c0 (LWP 376)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x56186b715fb0, nfds=2, timeout=32) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x56186b715fb0, timeout=<optimized out>, context=0x56186b70e760) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x56186b70e760, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x56186b70f910) at ../glib/gmain.c:4413
#4  0x00007fda3dbb75d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#5  0x00007fda3c61db26 in WebKit::WebProcessMain(int, char**) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3971354a in __libc_start_call_main (main=main@entry=0x56186a3c9880 <main>, argc=argc@entry=4, argv=argv@entry=0x7ffef9e834c8) at ../sysdeps/nptl/libc_start_call_main.h:58
#7  0x00007fda3971360b in __libc_start_main_impl (main=0x56186a3c9880 <main>, argc=4, argv=0x7ffef9e834c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=<optimized out>) at ../csu/libc-start.c:389
#8  0x000056186a3c97b5 in _start () at ../sysdeps/x86_64/start.S:115

Thread 27 (Thread 0x7fda2b498640 (LWP 392)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7fda2b497b80, op=393, expected=0, futex_word=0x7fda2b4a7690) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fda2b4a7690, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x7fda2b497b80, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fda2b4a7690, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x7fda2b497b80, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda39778812 in __pthread_cond_wait_common (abstime=0x7fda2b497b80, clockid=0, mutex=<optimized out>, cond=0x7fda2b4a7668) at pthread_cond_wait.c:503
#4  ___pthread_cond_timedwait64 (cond=0x7fda2b4a7668, mutex=<optimized out>, abstime=0x7fda2b497b80) at pthread_cond_wait.c:643
#5  0x00007fda402e0d33 in scavenger_thread_main () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#7  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 26 (Thread 0x7fd93a7fc640 (LWP 736)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd92c020fe0) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd92c020fe0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd92c020fe0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd92c020fb8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd92c020fb8, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 25 (Thread 0x7fd95cff9640 (LWP 695)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fda39f2aafe in g_cond_wait (cond=cond@entry=0x56186bab61f0, mutex=mutex@entry=0x56186bab6200) at ../glib/gthread-posix.c:1575
#2  0x00007fda36d3c578 in gst_app_src_create (bsrc=0x56186bab64c0 [GstBaseSrc|videosrc0], offset=<optimized out>, size=<optimized out>, buf=<optimized out>) at ../gst-libs/gst/app/gstappsrc.c:1785
#3  0x00007fda36cf1118 in gst_base_src_get_range (src=src@entry=0x56186bab64c0 [GstBaseSrc|videosrc0], offset=18446744073709551615, length=<optimized out>, buf=buf@entry=0x7fd95cff8ab0) at ../libs/gst/base/gstbasesrc.c:2592
#4  0x00007fda36cf70b9 in gst_base_src_loop (pad=0x56186ba64a60 [GstPad|src]) at ../libs/gst/base/gstbasesrc.c:2916
#5  0x00007fda39d00d41 in gst_task_func (task=0x56186bab7050 [GstTask|videosrc0:src]) at ../gst/gsttask.c:384
#6  0x00007fda39f0d692 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:350
#7  0x00007fda39f0a722 in g_thread_proxy (data=0x56186b9bc800) at ../glib/gthread.c:827
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 24 (Thread 0x7fd988ff9640 (LWP 687)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x56186b9ccd00) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x56186b9cccd8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x56186b9cccd8, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 23 (Thread 0x7fd93bfff640 (LWP 708)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fda39f2aafe in g_cond_wait (cond=cond@entry=0x7fd934008078, mutex=mutex@entry=0x7fd934008068) at ../glib/gthread-posix.c:1575
#2  0x00007fda36d0fcf5 in _gst_data_queue_wait_non_empty (queue=<optimized out>) at ../libs/gst/base/gstdataqueue.c:554
#3  gst_data_queue_pop (queue=0x7fd9340080c0, item=item@entry=0x7fd93bffeab0) at ../libs/gst/base/gstdataqueue.c:596
#4  0x00007fd9c467d2f7 in gst_multi_queue_loop (pad=<optimized out>) at ../plugins/elements/gstmultiqueue.c:2203
#5  0x00007fda39d00d41 in gst_task_func (task=0x56186bab75f0 [GstTask|multiqueue1:src_0]) at ../gst/gsttask.c:384
#6  0x00007fda39f0d692 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:350
#7  0x00007fda39f0a722 in g_thread_proxy (data=0x7fd940002060) at ../glib/gthread.c:827
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 22 (Thread 0x7fd98bfff640 (LWP 685)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x56186b99e7d8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56186b99e7d8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x56186b99e7d8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x56186b99e7b0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x56186b99e7b0, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 21 (Thread 0x7fd95d7fa640 (LWP 694)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x7fd940003b90, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fd940003b90, timeout=<optimized out>, context=0x7fd940000b70) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x7fd940000b70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x7fd940003a10) at ../glib/gmain.c:4413
#4  0x00007fda35dddc37 in Impl::AudioThread::s_threadEntrypoint(void*) (data=0x7ffef9e82bc0) at ../src/extensions/audio.cpp:139
#5  0x00007fda39f0a722 in g_thread_proxy (data=0x56186b9b9f00) at ../glib/gthread.c:827
#6  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#7  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 20 (Thread 0x7fd95dffb640 (LWP 693)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x56186b9ccd00) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x56186b9cccd8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x56186b9cccd8, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 19 (Thread 0x7fd95e7fc640 (LWP 692)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x56186b9ccd00) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x56186b9cccd8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x56186b9cccd8, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 18 (Thread 0x7fd9915fb640 (LWP 648)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7fd9915fa980, op=393, expected=0, futex_word=0x7fda292c0160) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fda292c0160, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x7fd9915fa980, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fda292c0160, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x7fd9915fa980, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda39778812 in __pthread_cond_wait_common (abstime=0x7fd9915fa980, clockid=0, mutex=<optimized out>, cond=0x7fda292c0138) at pthread_cond_wait.c:503
#4  ___pthread_cond_timedwait64 (cond=0x7fda292c0138, mutex=<optimized out>, abstime=0x7fd9915fa980) at pthread_cond_wait.c:643
#5  0x00007fda3dbbbb58 in WTF::ThreadCondition::timedWait(WTF::Mutex&, WTF::WallTime) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3db3a86b in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda3db08c61 in WTF::Detail::CallableWrapper<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::{lambda()#1}, void>::call() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#8  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#9  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#10 0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#11 0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 17 (Thread 0x7fd992ffd640 (LWP 529)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x7fd9700043c0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd9700043c0, timeout=<optimized out>, context=0x7fd970000b70) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x7fd970000b70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x7fd970003640) at ../glib/gmain.c:4413
#4  0x00007fda3dbb75d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#5  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#8  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 16 (Thread 0x7fd9937fe640 (LWP 476)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01c6d8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01c6d8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01c6d8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01c6b0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01c6b0, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 15 (Thread 0x7fd9b1ffb640 (LWP 458)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc005c9c) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc005c9c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc005c9c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc005c70) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc005c70, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 14 (Thread 0x7fd9b2ffd640 (LWP 456)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc0059dc) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc0059dc, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc0059dc, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc0059b0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc0059b0, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 13 (Thread 0x7fd9b37fe640 (LWP 455)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc00587c) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc00587c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc00587c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc005850) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc005850, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 12 (Thread 0x7fd9ccb3d640 (LWP 448)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x7fd9bc003b30, nfds=2, timeout=296) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fd9bc003b30, timeout=<optimized out>, context=0x7fd9bc000b70) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x7fd9bc000b70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x7fd9bc003a40) at ../glib/gmain.c:4413
#4  0x00007fda3dbb75d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#5  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#8  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 11 (Thread 0x7fd95effd640 (LWP 691)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x56186b9ccd00) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x56186b9cccd8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x56186b9cccd8, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 10 (Thread 0x7fd95f7fe640 (LWP 690)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x56186b9ccd00) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x56186b9cccd8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x56186b9cccd8, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 9 (Thread 0x7fd95ffff640 (LWP 689)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x56186b9ccd00) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x56186b9ccd00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x56186b9cccd8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x56186b9cccd8, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d271a2bb in util_queue_thread_func () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 8 (Thread 0x7fd98b7fe640 (LWP 465)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 7 (Thread 0x7fd9897fa640 (LWP 469)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 6 (Thread 0x7fd993fff640 (LWP 463)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 5 (Thread 0x7fd93b7fe640 (LWP 720)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fda39f2aafe in g_cond_wait (cond=cond@entry=0x7fd9300071b8, mutex=mutex@entry=0x7fd9300071a8) at ../glib/gthread-posix.c:1575
#2  0x00007fda36d0fcf5 in _gst_data_queue_wait_non_empty (queue=<optimized out>) at ../libs/gst/base/gstdataqueue.c:554
#3  gst_data_queue_pop (queue=0x7fd930007200, item=item@entry=0x7fd93b7fdab0) at ../libs/gst/base/gstdataqueue.c:596
#4  0x00007fd9c467d2f7 in gst_multi_queue_loop (pad=<optimized out>) at ../plugins/elements/gstmultiqueue.c:2203
#5  0x00007fda39d00d41 in gst_task_func (task=0x56186bab7cb0 [GstTask|multiqueue0:src_0]) at ../gst/gsttask.c:384
#6  0x00007fda39f0d692 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:350
#7  0x00007fda39f0a722 in g_thread_proxy (data=0x7fd93000e460) at ../glib/gthread.c:827
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 4 (Thread 0x7fd9c4ffd640 (LWP 452)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc0055bc) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc0055bc, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc0055bc, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc005590) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc005590, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5ea4b in thread_function () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 3 (Thread 0x7fd9e3fff640 (LWP 394)):
#0  0x00007fda397f60cd in __GI___poll (fds=0x7fd9dc004bf0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fda39f30f9e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd9dc004bf0, timeout=<optimized out>, context=0x7fd9dc000b70) at ../glib/gmain.c:4518
#2  g_main_context_iterate.constprop.0 (context=0x7fd9dc000b70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4208
#3  0x00007fda39eda2af in g_main_loop_run (loop=0x7fd9dc003a40) at ../glib/gmain.c:4413
#4  0x00007fda3dbb75d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#5  0x00007fda3db406d6 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#6  0x00007fda3dbbb229 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#7  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#8  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7fd9b17fa640 (LWP 459)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7fd9bc01b380) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007fda39775c1f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fd9bc01b380, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007fda397784d1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=<optimized out>, cond=0x7fd9bc01b358) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fd9bc01b358, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x00007fd9d276b83d in cnd_wait () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#6  0x00007fd9d2d5b63b in lp_cs_tpool_worker () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#7  0x00007fd9d276b76c in impl_thrd_routine () at /usr/lib/x86_64-linux-gnu/GL/default/lib/dri/swrast_dri.so
#8  0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7fd93affd640 (LWP 733)):
#0  0x00007fda3dc77ecc in WebCore::MediaPlayerPrivateGStreamer::pushDMABufToCompositor() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#1  0x00007fda3dc65e3c in webKitVideoSinkSetMediaPlayerPrivate(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*)::{lambda(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*)#2}::_FUN(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1
#2  0x00007fda33ba9056 in ffi_call_unix64 () at ../src/x86/unix64.S:104
#3  0x00007fda33ba7add in ffi_call_int (cif=<optimized out>, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=<optimized out>) at ../src/x86/ffi64.c:673
#4  0x00007fda33ba82b3 in ffi_call (cif=cif@entry=0x7fd93affb780, fn=fn@entry=0x7fda3dc65cf0 <webKitVideoSinkSetMediaPlayerPrivate(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*)::{lambda(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*)#2}::_FUN(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*)>, rvalue=rvalue@entry=0x7fd93affb6e0, avalue=avalue@entry=0x7fd93affb6a0) at ../src/x86/ffi64.c:710
#5  0x00007fda3635f4c0 in g_cclosure_marshal_generic_va (closure=<optimized out>, return_value=<optimized out>, instance=<optimized out>, args_list=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=<optimized out>) at ../gobject/gclosure.c:1648
#6  0x00007fda36377480 in _g_closure_invoke_va (param_types=<optimized out>, n_params=<optimized out>, args=0x7fd93affb990, instance=0x56186baacbf0, return_value=<optimized out>, closure=0x56186baae0f0) at ../gobject/gclosure.c:893
#7  g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fd93affb990) at ../gobject/gsignal.c:3440
#8  0x00007fda363775b3 in g_signal_emit (instance=instance@entry=0x56186baacbf0, signal_id=<optimized out>, detail=detail@entry=0) at ../gobject/gsignal.c:3587
#9  0x00007fda36d3e48d in gst_app_sink_render_common (psink=0x56186baacbf0 [GstBaseSink|webkit-dmabuf-video-appsink], data=<optimized out>, is_list=<optimized out>) at ../gst-libs/gst/app/gstappsink.c:1103
#10 0x00007fda36d1505e in gst_base_sink_chain_unlocked.constprop.0 (basesink=0x56186baacbf0 [GstBaseSink|webkit-dmabuf-video-appsink], obj=0x7fd93000cb40, is_list=<optimized out>, pad=<optimized out>) at ../libs/gst/base/gstbasesink.c:3952
#11 0x00007fda36ce2150 in gst_base_sink_chain_main (basesink=0x56186baacbf0 [GstBaseSink|webkit-dmabuf-video-appsink], pad=<optimized out>, obj=0x7fd93000cb40, is_list=0) at ../libs/gst/base/gstbasesink.c:4078
#12 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x56186ba64810 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#13 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x56186ba4af10 [GstPad|proxypad5], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#14 0x00007fda39cd84de in gst_pad_push (pad=0x56186ba4af10 [GstPad|proxypad5], buffer=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#15 0x00007fda39cbdaeb in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fd93000cb40 [None]) at ../gst/gstghostpad.c:127
#16 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x56186ba08f00 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#17 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x7fd93400d8c0 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#18 0x00007fda39cd84de in gst_pad_push (pad=0x7fd93400d8c0 [GstPad|src], buffer=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#19 0x00007fda39cbdaeb in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fd93000cb40 [None]) at ../gst/gstghostpad.c:127
#20 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fd9340118e0 [GstPad|proxypad14], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#21 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x7fd930009370 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#22 0x00007fda39cd84de in gst_pad_push (pad=0x7fd930009370 [GstPad|src], buffer=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#23 0x00007fda36cfe31b in gst_base_transform_chain (pad=<optimized out>, parent=0x7fd928047690 [GstObject|conv2], buffer=<optimized out>) at ../libs/gst/base/gstbasetransform.c:2391
#24 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fd9300095c0 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#25 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x7fd930009120 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#26 0x00007fda39cd84de in gst_pad_push (pad=0x7fd930009120 [GstPad|src], buffer=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#27 0x00007fda36cfe31b in gst_base_transform_chain (pad=<optimized out>, parent=0x7fd928012af0 [GstObject|videobalance], buffer=<optimized out>) at ../libs/gst/base/gstbasetransform.c:2391
#28 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fd930008ed0 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#29 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x7fd930009810 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#30 0x00007fda39cd84de in gst_pad_push (pad=0x7fd930009810 [GstPad|src], buffer=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#31 0x00007fda36cfe31b in gst_base_transform_chain (pad=<optimized out>, parent=0x7fd9280471b0 [GstObject|scale], buffer=<optimized out>) at ../libs/gst/base/gstbasetransform.c:2391
#32 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fd930009a60 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#33 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x7fd928040190 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#34 0x00007fda39cd84de in gst_pad_push (pad=0x7fd928040190 [GstPad|src], buffer=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#35 0x00007fda36cfe31b in gst_base_transform_chain (pad=<optimized out>, parent=0x7fd92803c2b0 [GstObject|conv], buffer=<optimized out>) at ../libs/gst/base/gstbasetransform.c:2391
#36 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fd930009cb0 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#37 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x7fd934011680 [GstPad|proxypad13], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#38 0x00007fda39cd84de in gst_pad_push (pad=0x7fd934011680 [GstPad|proxypad13], buffer=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#39 0x00007fda39cbdaeb in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fd93000cb40 [None]) at ../gst/gstghostpad.c:127
#40 0x00007fda39cd4775 in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fd93400d650 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4463
#41 0x00007fda39cd8114 in gst_pad_push_data (pad=pad@entry=0x7fd9300087e0 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fd93000cb40) at ../gst/gstpad.c:4739
#42 0x00007fda39cd84de in gst_pad_push (pad=0x7fd9300087e0 [GstPad|src], buffer=buffer@entry=0x7fd93000cb40 [None]) at ../gst/gstpad.c:4858
#43 0x00007fd9c46985ec in gst_queue_push_one (queue=0x56186ba54c90 [GstQueue|vqueue]) at ../plugins/elements/gstqueue.c:1388
#44 gst_queue_loop (pad=<optimized out>) at ../plugins/elements/gstqueue.c:1541
#45 0x00007fda39d00d41 in gst_task_func (task=0x7fd93000c170 [GstTask|vqueue:src]) at ../gst/gsttask.c:384
#46 0x00007fda39f0d692 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:350
#47 0x00007fda39f0a722 in g_thread_proxy (data=0x7fd928009580) at ../glib/gthread.c:827
#48 0x00007fda397791da in start_thread (arg=<optimized out>) at pthread_create.c:442
#49 0x00007fda39802d50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file /memfd:mesa-shared (deleted) during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
STDERR: 
STDERR: warning: Can't open file /memfd:WebKitSharedMemory (deleted) during file-backed mapping note processing
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libicudata.so.71.1.debug" does not match "/usr/lib/x86_64-linux-gnu/libicudata.so.71" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libicudata.so.71.1.debug" does not match "/usr/lib/x86_64-linux-gnu/libicudata.so.71" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-client.so.0.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-client.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-client.so.0.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-client.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-cursor.so.0.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-cursor.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-cursor.so.0.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-cursor.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-egl.so.1.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-egl.so.1" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-egl.so.1.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-egl.so.1" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libX11-xcb.so.1.0.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libX11-xcb.so.1" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libX11-xcb.so.1.0.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libX11-xcb.so.1" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-server.so.0.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-server.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libwayland-server.so.0.21.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libwayland-server.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0.0.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0.0.0.debug" does not match "/usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0" (CRC mismatch).
STDERR: 
STDERR: 
STDERR: warning: the debug information found in "/usr/lib/debug//usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstapp.so.debug" does not match "/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstapp.so" (CRC mismatch).
STDERR: 
STDERR: Failed to load 'about:blank', terminating process and trying again.
STDERR: WPEWebProcess terminated (pid 0) for reason: requested by client
STDERR: WPEWebProcess terminated (pid 376) for reason: crash