Core was generated by `amarok'.
Program terminated with signal SIGINT, Interrupt.
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
135     ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: No such file or directory.
[Current thread is 1 (Thread 0x7f59a4d73b80 (LWP 28666))]
(gdb) info threads
  Id   Target Id                         Frame 
* 1    Thread 0x7f59a4d73b80 (LWP 28666) __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
  2    Thread 0x7f5976c7e700 (LWP 28669) 0x00007f59a193dbf9 in __GI___poll (fds=0x7f59700064e0, nfds=3, timeout=1277)
    at ../sysdeps/unix/sysv/linux/poll.c:29
  3    Thread 0x7f595a6b4700 (LWP 28670) 0x00007f59a186926c in __GI___sigtimedwait (set=<optimized out>, info=0x7f595a6b3a00, 
    timeout=0x0) at ../sysdeps/unix/sysv/linux/sigtimedwait.c:42
  4    Thread 0x7f594df6f700 (LWP 28671) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f597622c000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594df6e500) at io_getevents.c:25
  5    Thread 0x7f594d76e700 (LWP 28672) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f5976227000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594d76d500) at io_getevents.c:25
  6    Thread 0x7f594cf6d700 (LWP 28673) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f597b502000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594cf6c500) at io_getevents.c:25
  7    Thread 0x7f594c76c700 (LWP 28674) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f597b4fd000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594c76b500) at io_getevents.c:25
  8    Thread 0x7f594bf6b700 (LWP 28675) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f597b4f8000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594bf6a500) at io_getevents.c:25
  9    Thread 0x7f594b76a700 (LWP 28676) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f5976231000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594b769500) at io_getevents.c:25
  10   Thread 0x7f594af69700 (LWP 28677) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f5976222000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594af68500) at io_getevents.c:25
  11   Thread 0x7f594a768700 (LWP 28678) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f597621d000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f594a767500) at io_getevents.c:25
  12   Thread 0x7f5949f67700 (LWP 28679) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f5976218000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f5949f66500) at io_getevents.c:25
  13   Thread 0x7f5949766700 (LWP 28680) 0x00007f595b3aa63a in __io_getevents_0_4 (ctx=0x7f5976213000, min_nr=1, nr=256, 
    events=0x7f595b3aa63a <__io_getevents_0_4+10>, timeout=0x7f5949765500) at io_getevents.c:25
  14   Thread 0x7f5948f65700 (LWP 28681) 0x00007f599ffd0f85 in futex_abstimed_wait_cancelable (private=<optimized out>, 
    abstime=0x7f5948f64760, expected=0, futex_word=0x55bbe40027fc) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  15   Thread 0x7f5943fff700 (LWP 28684) 0x00007f599ffd0f85 in futex_abstimed_wait_cancelable (private=<optimized out>, 
    abstime=0x7f5943ffe910, expected=0, futex_word=0x55bbe4754f48) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  16   Thread 0x7f59437fe700 (LWP 28685) 0x00007f599ffd0f85 in futex_abstimed_wait_cancelable (private=<optimized out>, 
    abstime=0x7f59437fd800, expected=0, futex_word=0x55bbe4002648) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  17   Thread 0x7f5942ffd700 (LWP 28686) 0x00007f599ffd0f85 in futex_abstimed_wait_cancelable (private=<optimized out>, 
    abstime=0x7f5942ffc9b0, expected=0, futex_word=0x55bbe40026d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  18   Thread 0x7f59427fc700 (LWP 28687) 0x00007f59a190d9d0 in __GI___nanosleep (requested_time=0x7f59427fb9c0, remaining=0x0)
    at ../sysdeps/unix/sysv/linux/nanosleep.c:28
  19   Thread 0x7f5941ffb700 (LWP 28688) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4002408) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  20   Thread 0x7f59417fa700 (LWP 28689) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4002498) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  21   Thread 0x7f5940ff9700 (LWP 28690) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4002528) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  22   Thread 0x7f5933fff700 (LWP 28691) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe40025b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  23   Thread 0x7f59337fe700 (LWP 28692) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4002768) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  24   Thread 0x7f5932ffd700 (LWP 28693) 0x00007f599ffd0f85 in futex_abstimed_wait_cancelable (private=<optimized out>, 
    abstime=0x7f5932ffc920, expected=0, futex_word=0x55bbe4778fa8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  25   Thread 0x7f59327fc700 (LWP 28694) 0x00007f599ffd0f85 in futex_abstimed_wait_cancelable (private=<optimized out>, 
    abstime=0x7f59327fb7a0, expected=0, futex_word=0x55bbe47b2e58) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  26   Thread 0x7f5931ffb700 (LWP 28695) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4002888) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  27   Thread 0x7f59317fa700 (LWP 28696) 0x00007f599ffd0f85 in futex_abstimed_wait_cancelable (private=<optimized out>, 
    abstime=0x7f59317f9840, expected=0, futex_word=0x55bbe4816c40) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  28   Thread 0x7f5930ff9700 (LWP 28697) 0x00007f59a193dbf9 in __GI___poll (fds=0x7f591c003a60, nfds=2, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:29
  29   Thread 0x7f592bfff700 (LWP 28698) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  30   Thread 0x7f592b7fe700 (LWP 28699) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  31   Thread 0x7f592affd700 (LWP 28700) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  32   Thread 0x7f592a7fc700 (LWP 28701) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  33   Thread 0x7f5929ffb700 (LWP 28702) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  34   Thread 0x7f59297fa700 (LWP 28703) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
--Type <RET> for more, q to quit, c to continue without paging--
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  35   Thread 0x7f5928ff9700 (LWP 28704) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  36   Thread 0x7f58fffff700 (LWP 28705) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  37   Thread 0x7f58ff7fe700 (LWP 28706) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  38   Thread 0x7f58feffd700 (LWP 28707) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  39   Thread 0x7f58fe7fc700 (LWP 28708) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  40   Thread 0x7f58fdffb700 (LWP 28709) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  41   Thread 0x7f58fd7fa700 (LWP 28710) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  42   Thread 0x7f58fcff9700 (LWP 28711) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  43   Thread 0x7f58ebfff700 (LWP 28712) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x55bbe4821964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  44   Thread 0x7f58eb7fe700 (LWP 28713) 0x00007f59a193dbf9 in __GI___poll (fds=0x7f58d40046f0, nfds=2, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:29
  45   Thread 0x7f58e91f5700 (LWP 28714) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x7f59982e0698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  46   Thread 0x7f5885f0b700 (LWP 28715) 0x00007f59a194003f in __GI___select (nfds=5, readfds=0x7f5885f0a9c0, writefds=0x0, 
    exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:41
  47   Thread 0x7f58850c7700 (LWP 28717) 0x00007f59a193dbf9 in __GI___poll (fds=0x7f5878004e20, nfds=1, timeout=9999)
    at ../sysdeps/unix/sysv/linux/poll.c:29
  48   Thread 0x7f587ffff700 (LWP 28718) 0x00007f599ffd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, 
    futex_word=0x7f59a0b92fbc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  49   Thread 0x7f58c8cff700 (LWP 28753) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  50   Thread 0x7f57e4847700 (LWP 28754) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  51   Thread 0x7f57d7fff700 (LWP 28755) __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
  52   Thread 0x7f57d77fe700 (LWP 28756) __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
  53   Thread 0x7f57d6591700 (LWP 28757) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  54   Thread 0x7f57d5d90700 (LWP 28758) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  55   Thread 0x7f57d558f700 (LWP 28759) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  56   Thread 0x7f57d4d8e700 (LWP 28760) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  57   Thread 0x7f57bbfff700 (LWP 28761) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  58   Thread 0x7f57bb7fe700 (LWP 28762) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  59   Thread 0x7f57baffd700 (LWP 28763) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  60   Thread 0x7f57ba7fc700 (LWP 28764) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38






(gdb) bt
#0  0x00007f599ffd410d in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f599ffcd098 in __GI___pthread_mutex_lock (mutex=0x55bbe3e9da40) at ../nptl/pthread_mutex_lock.c:113
#2  0x00007f5974e89d21 in gst_play_bin_query (element=0x55bbe3e9d190 [GstPlayBin], query=0x55bbe678e6d0) at gstplaybin2.c:2808
#3  0x00007f598ad9baa7 in gst_element_query (element=element@entry=0x55bbe3e9d190 [GstPlayBin], query=query@entry=0x55bbe678e6d0)
    at gstelement.c:1963
#4  0x00007f598adf4bea in gst_element_query_position
    (element=0x55bbe3e9d190 [GstPlayBin], format=format@entry=GST_FORMAT_TIME, cur=cur@entry=0x7fffa4568c30) at gstutils.c:2438
#5  0x00007f597aee1ee9 in Phonon::Gstreamer::Pipeline::position() const (this=0x55bbe3e927a0) at ./gstreamer/pipeline.cpp:921
#6  0x00007f597aed5dac in Phonon::Gstreamer::MediaObject::emitTick() (this=0x55bbe3ccb6c0) at ./gstreamer/mediaobject.cpp:539
#7  0x00007f597aede5a8 in Phonon::Gstreamer::MediaObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)
    (_o=0x55bbe3ccb6c0, _id=<optimized out>, _a=0x7fffa4568d30, _c=<optimized out>) at ./obj-qt4/gstreamer/moc_mediaobject.cpp:136
#8  0x00007f59a2198f70 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) ()
    at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f59a219ebe3 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f59a26b103c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#11 0x00007f59a26b7f76 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#12 0x00007f59a38dbcca in KApplication::notify(QObject*, QEvent*) () at /usr/lib/libkdeui.so.5
#13 0x00007f59a21848ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#14 0x00007f59a21b76e0 in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#15 0x00007f59a21b4889 in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#16 0x00007f59994fb417 in g_main_dispatch (context=0x55bbe3aaf1c0) at ../../../../glib/gmain.c:3176
#17 0x00007f59994fb417 in g_main_context_dispatch (context=context@entry=0x55bbe3aaf1c0) at ../../../../glib/gmain.c:3829
#18 0x00007f59994fb650 in g_main_context_iterate
    (context=context@entry=0x55bbe3aaf1c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at ../../../../glib/gmain.c:3902
#19 0x00007f59994fb6dc in g_main_context_iteration (context=0x55bbe3aaf1c0, may_block=1) at ../../../../glib/gmain.c:3963
#20 0x00007f59a21b520e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
    at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#21 0x00007f59a275e666 in  () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007f59a218312f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
    at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f59a2183495 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x00007f59a2189459 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#25 0x000055bbe35d6db4 in  ()
#26 0x00007f59a184ab97 in __libc_start_main (main=
    0x55bbe35d0980, argc=1, argv=0x7fffa4569588, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa4569578) at ../csu/libc-start.c:310
#27 0x000055bbe35d89da in _start ()
(gdb) up
#1  0x00007f599ffcd098 in __GI___pthread_mutex_lock (mutex=0x55bbe3e9da40) at ../nptl/pthread_mutex_lock.c:113
113     ../nptl/pthread_mutex_lock.c: No such file or directory.        
(gdb) p mutex->__
__align  __data   __size   
(gdb) p mutex->__data 
$1 = {__lock = 2, __count = 1, __owner = 28756, __nusers = 1, __kind = 1, __spins = 0, __elision = 0, __list = {__prev = 0x0, 
    __next = 0x0}}
(gdb) t 52 
[Switching to thread 52 (Thread 0x7f57d77fe700 (LWP 28756))]
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
135     ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: No such file or directory.
(gdb) bt
#0  0x00007f599ffd410d in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f599ffcd098 in __GI___pthread_mutex_lock (mutex=0x7f57c41c17b0) at ../nptl/pthread_mutex_lock.c:113
#2  0x00007f598adb986f in post_activate (new_mode=GST_PAD_MODE_NONE, pad=0x55bbe3e77c60 [GstSelectorPad]) at gstpad.c:1053
#3  0x00007f598adb986f in activate_mode_internal
    (pad=pad@entry=0x55bbe3e77c60 [GstSelectorPad], parent=parent@entry=0x7f57c41c0180 [GstInputSelector], mode=mode@entry=GST_PAD_MODE_PUSH, active=active@entry=0) at gstpad.c:1231
#4  0x00007f598adba325 in gst_pad_set_active (pad=pad@entry=0x55bbe3e77c60 [GstSelectorPad], active=active@entry=0) at gstpad.c:1122
#5  0x00007f5975303151 in gst_input_selector_release_pad
    (element=0x7f57c41c0180 [GstInputSelector], pad=0x55bbe3e77c60 [GstSelectorPad]) at gstinputselector.c:1812
#6  0x00007f5974e8bf33 in deactivate_group (playbin=playbin@entry=0x55bbe3e9d190 [GstPlayBin], group=group@entry=0x55bbe3e9d618)
    at gstplaybin2.c:5526
#7  0x00007f5974e9230b in setup_next_source (playbin=0x55bbe3e9d190 [GstPlayBin], target=GST_STATE_PAUSED) at gstplaybin2.c:5619
#8  0x00007f598c36cdae in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#9  0x00007f598c36c71f in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#14 0x00007f5998da112f in <emit signal ??? on instance 0x55bbe3ed7800 [GstURIDecodeBin]>
    (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../../../../gobject/gsignal.c:3447
    #10 0x00007f5998d85901 in g_cclosure_marshal_generic
    (closure=0x55bbe694ffb0, return_gvalue=0x0, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=<optimized out>) at ../../../../gobject/gclosure.c:1490
    #11 0x00007f5998d8510d in g_closure_invoke
    (closure=0x55bbe694ffb0, return_value=0x0, n_param_values=1, param_values=0x7f57d77fc2d0, invocation_hint=0x7f57d77fc250)
    at ../../../../gobject/gclosure.c:804
    #12 0x00007f5998d9805e in signal_emit_unlocked_R
    (node=node@entry=0x55bbe5c2a9a0, detail=detail@entry=0, instance=instance@entry=0x55bbe3ed7800, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7f57d77fc2d0) at ../../../../gobject/gsignal.c:3635
    #13 0x00007f5998da0715 in g_signal_emit_valist
    (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7f57d77fc490)
    at ../../../../gobject/gsignal.c:3391
#15 0x00007f598c36cdae in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#16 0x00007f598c36c71f in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#21 0x00007f5998da112f in <emit signal ??? on instance 0x55bbe6a480e0 [GstDecodeBin]>
    (instance=instance@entry=0x55bbe6a480e0, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
    #17 0x00007f5998d85901 in g_cclosure_marshal_generic
    (closure=0x55bbe6286580, return_gvalue=0x0, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=<optimized out>) at ../../../../gobject/gclosure.c:1490
    #18 0x00007f5998d8510d in g_closure_invoke
    (closure=0x55bbe6286580, return_value=0x0, n_param_values=1, param_values=0x7f57d77fc970, invocation_hint=0x7f57d77fc8f0)
    at ../../../../gobject/gclosure.c:804
    #19 0x00007f5998d9805e in signal_emit_unlocked_R
    (node=node@entry=0x55bbe627de60, detail=detail@entry=0, instance=instance@entry=0x55bbe6a480e0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7f57d77fc970) at ../../../../gobject/gsignal.c:3635
    #20 0x00007f5998da0715 in g_signal_emit_valist
    (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7f57d77fcb30)
    at ../../../../gobject/gsignal.c:3391
#22 0x00007f5974e628b9 in drain_and_switch_chains
    (chain=<optimized out>, drainpad=drainpad@entry=0x7f57dc02ab00 [GstDecodePad], last_group=last_group@entry=0x7f57d77fcd18, drained=drained@entry=0x7f57d77fccc4, switched=switched@entry=0x7f57d77fcd1c) at gstdecodebin2.c:4214
#23 0x00007f5974e62bce in drain_and_switch_group
    (switched=0x7f57d77fcd1c, drained=<synthetic pointer>, last_group=0x7f57d77fcd18, drainpad=0x7f57dc02ab00 [GstDecodePad], group=0x7f57dc1522d0) at gstdecodebin2.c:4120
#24 0x00007f5974e62bce in drain_and_switch_chains
    (chain=0x55bbe6a2dc90, drainpad=drainpad@entry=0x7f57dc02ab00 [GstDecodePad], last_group=last_group@entry=0x7f57d77fcd18, drained=drained@entry=0x7f57d77fcd20, switched=switched@entry=0x7f57d77fcd1c) at gstdecodebin2.c:4174
#25 0x00007f5974e656c5 in gst_decode_pad_handle_eos (pad=0x7f57dc02ab00 [GstDecodePad]) at gstdecodebin2.c:4257
#26 0x00007f5974e656c5 in source_pad_event_probe
    (pad=pad@entry=0x7f57dc02ab00 [GstDecodePad], info=info@entry=0x7f57d77fcf50, user_data=0x7f57dc02ab00) at gstdecodebin2.c:5004
#27 0x00007f598adb3278 in probe_hook_marshal (hook=0x7f57d01bf100, data=0x7f57d77fce20) at gstpad.c:3561
#28 0x00007f59994eb804 in g_hook_list_marshal
    (hook_list=hook_list@entry=0x7f57dc02ab98, may_recurse=may_recurse@entry=1, marshaller=marshaller@entry=0x7f598adb2f90 <probe_hook_marshal>, data=data@entry=0x7f57d77fce20) at ../../../../glib/ghook.c:672
#29 0x00007f598adb1815 in do_probe_callbacks
    (pad=pad@entry=0x7f57dc02ab00 [GstDecodePad], info=info@entry=0x7f57d77fcf50, defaultval=defaultval@entry=GST_FLOW_OK)
    at gstpad.c:3723
#30 0x00007f598adb46d8 in gst_pad_push_event_unchecked
    (pad=pad@entry=0x7f57dc02ab00 [GstDecodePad], event=0x7f57d01bdec0, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM)
    at gstpad.c:5371
#31 0x00007f598adb4cd9 in push_sticky
--Type <RET> for more, q to quit, c to continue without paging--
    (pad=pad@entry=0x7f57dc02ab00 [GstDecodePad], ev=ev@entry=0x7f57d77fd030, user_data=user_data@entry=0x7f57d77fd0a0)
    at gstpad.c:3922
#32 0x00007f598adb26a0 in events_foreach
    (pad=pad@entry=0x7f57dc02ab00 [GstDecodePad], func=func@entry=0x7f598adb4c20 <push_sticky>, user_data=user_data@entry=0x7f57d77fd0a0) at gstpad.c:612
#33 0x00007f598adbebff in check_sticky (event=0x7f57d01bdec0, pad=0x7f57dc02ab00 [GstDecodePad]) at gstpad.c:3981
#34 0x00007f598adbebff in gst_pad_push_event (pad=pad@entry=0x7f57dc02ab00 [GstDecodePad], event=0x7f57d01bdec0) at gstpad.c:5537
#35 0x00007f598adbf134 in event_forward_func (pad=pad@entry=0x7f57dc02ab00 [GstDecodePad], data=data@entry=0x7f57d77fd1a0)
    at gstpad.c:3054
#36 0x00007f598adba9ae in gst_pad_forward
    (pad=pad@entry=0x7f57dc02e590 [GstProxyPad], forward=forward@entry=0x7f598adbf070 <event_forward_func>, user_data=user_data@entry=0x7f57d77fd1a0) at gstpad.c:3008
#37 0x00007f598adbaaad in gst_pad_event_default (pad=0x7f57dc02e590 [GstProxyPad], parent=<optimized out>, event=0x7f57d01bdec0)
    at gstpad.c:3105
#38 0x00007f598adb4417 in gst_pad_send_event_unchecked
    (pad=pad@entry=0x7f57dc02e590 [GstProxyPad], event=event@entry=0x7f57d01bdec0, type=<optimized out>, 
    type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5761
#39 0x00007f598adb48ab in gst_pad_push_event_unchecked
    (pad=pad@entry=0x7f57d01c31f0 [GstPad], event=0x7f57d01bdec0, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM)
    at gstpad.c:5406
#40 0x00007f598adb4cd9 in push_sticky
    (pad=pad@entry=0x7f57d01c31f0 [GstPad], ev=ev@entry=0x7f57d77fd3b0, user_data=user_data@entry=0x7f57d77fd420) at gstpad.c:3922
#41 0x00007f598adb26a0 in events_foreach
    (pad=pad@entry=0x7f57d01c31f0 [GstPad], func=func@entry=0x7f598adb4c20 <push_sticky>, user_data=user_data@entry=0x7f57d77fd420)
    at gstpad.c:612
#42 0x00007f598adbebff in check_sticky (event=0x7f57d01bdec0, pad=0x7f57d01c31f0 [GstPad]) at gstpad.c:3981
#43 0x00007f598adbebff in gst_pad_push_event (pad=0x7f57d01c31f0 [GstPad], event=event@entry=0x7f57d01bdec0) at gstpad.c:5537
#44 0x00007f598b5a711e in gst_video_decoder_push_event
    (decoder=decoder@entry=0x7f57d01d47a0 [GstJpegDec], event=event@entry=0x7f57d01bdec0) at gstvideodecoder.c:859
#45 0x00007f598b5ac28b in gst_video_decoder_sink_event_default (decoder=<optimized out>, event=0x7f57d01bdec0)
    at gstvideodecoder.c:1351
#46 0x00007f57d6df6a78 in gst_jpeg_dec_sink_event (bdec=0x7f57d01d47a0 [GstJpegDec], event=0x7f57d01bdec0) at gstjpegdec.c:1471
#47 0x00007f598adb4417 in gst_pad_send_event_unchecked
    (pad=pad@entry=0x7f57d01c2fa0 [GstPad], event=event@entry=0x7f57d01bdec0, type=<optimized out>, 
    type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5761
#48 0x00007f598adb48ab in gst_pad_push_event_unchecked
    (pad=pad@entry=0x7f57d01c2d50 [GstPad], event=0x7f57d01bdec0, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM)
    at gstpad.c:5406
#49 0x00007f598adb4cd9 in push_sticky
    (pad=pad@entry=0x7f57d01c2d50 [GstPad], ev=ev@entry=0x7f57d77fd870, user_data=user_data@entry=0x7f57d77fd8e0) at gstpad.c:3922
#50 0x00007f598adb26a0 in events_foreach
    (pad=pad@entry=0x7f57d01c2d50 [GstPad], func=func@entry=0x7f598adb4c20 <push_sticky>, user_data=user_data@entry=0x7f57d77fd8e0)
    at gstpad.c:612
#51 0x00007f598adbebff in check_sticky (event=0x7f57d01bdec0, pad=0x7f57d01c2d50 [GstPad]) at gstpad.c:3981
#52 0x00007f598adbebff in gst_pad_push_event (pad=0x7f57d01c2d50 [GstPad], event=event@entry=0x7f57d01bdec0) at gstpad.c:5537
#53 0x00007f597530e496 in gst_single_queue_push_one
    (allow_drop=<synthetic pointer>, object=0x7f57d01bdec0, sq=0x7f57d01cd640, mq=0x7f57d01c7040 [GstMultiQueue])
    at gstmultiqueue.c:1688
#54 0x00007f597530e496 in gst_multi_queue_loop (pad=<optimized out>) at gstmultiqueue.c:1959
#55 0x00007f598adea269 in gst_task_func (task=0x55bbe6957cb0 [GstTask]) at gsttask.c:332
#56 0x00007f5999523b60 in g_thread_pool_thread_proxy (data=<optimized out>) at ../../../../glib/gthreadpool.c:307
#57 0x00007f5999523195 in g_thread_proxy (data=0x7f57d03cc1e0) at ../../../../glib/gthread.c:784
#58 0x00007f599ffca6db in start_thread (arg=0x7f57d77fe700) at pthread_create.c:463
#59 0x00007f59a194a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) up
#1  0x00007f599ffcd098 in __GI___pthread_mutex_lock (mutex=0x7f57c41c17b0) at ../nptl/pthread_mutex_lock.c:113
113     ../nptl/pthread_mutex_lock.c: No such file or directory.
(gdb) p mutex->__data 
$2 = {__lock = 2, __count = 1, __owner = 28755, __nusers = 1, __kind = 1, __spins = 0, __elision = 0, __list = {__prev = 0x0, 
    __next = 0x0}}
(gdb) t 51
[Switching to thread 51 (Thread 0x7f57d7fff700 (LWP 28755))]
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
135     ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: No such file or directory.
(gdb) p mutex->__data 
There is no member named __data.
(gdb) up
#1  0x00007f599ffcd098 in __GI___pthread_mutex_lock (mutex=0x55bbe3e9da40) at ../nptl/pthread_mutex_lock.c:113
113     ../nptl/pthread_mutex_lock.c: No such file or directory.
(gdb) p mutex->__data 
$3 = {__lock = 2, __count = 1, __owner = 28756, __nusers = 1, __kind = 1, __spins = 0, __elision = 0, __list = {__prev = 0x0, 
    __next = 0x0}}
(gdb) bt
#0  0x00007f599ffd410d in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f599ffcd098 in __GI___pthread_mutex_lock (mutex=0x55bbe3e9da40) at ../nptl/pthread_mutex_lock.c:113
#2  0x00007f5974e8eaff in combiner_active_pad_changed
    (combiner=0x7f57c41c0180 [GstInputSelector], pspec=<optimized out>, playbin=0x55bbe3e9d190 [GstPlayBin]) at gstplaybin2.c:3036
#6  0x00007f5998da112f in <emit signal notify:active-pad on instance 0x7f57c41c0180 [GstInputSelector]>
    (instance=instance@entry=0x7f57c41c0180, signal_id=<optimized out>, detail=<optimized out>)
    at ../../../../gobject/gsignal.c:3447
    #3  0x00007f5998d8510d in g_closure_invoke
    (closure=0x7f57c41c1760, return_value=0x0, n_param_values=2, param_values=0x7f57d7ffe180, invocation_hint=0x7f57d7ffe100)
    at ../../../../gobject/gclosure.c:804
    #4  0x00007f5998d9805e in signal_emit_unlocked_R
    (node=node@entry=0x55bbe3c88400, detail=detail@entry=2845, instance=instance@entry=0x7f57c41c0180, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7f57d7ffe180) at ../../../../gobject/gsignal.c:3635
    #5  0x00007f5998da0715 in g_signal_emit_valist
    (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7f57d7ffe350)
    at ../../../../gobject/gsignal.c:3391
#7  0x00007f5998d895c4 in g_object_dispatch_properties_changed
    (object=0x7f57c41c0180 [GstInputSelector], n_pspecs=<optimized out>, pspecs=<optimized out>)
    at ../../../../gobject/gobject.c:1082
#8  0x00007f598ad70154 in gst_object_dispatch_properties_changed
    (object=0x7f57c41c0180 [GstInputSelector], n_pspecs=1, pspecs=0x7f57d7ffe4d0) at gstobject.c:430
#9  0x00007f5998d8b999 in g_object_notify_by_spec_internal
    (pspec=0x7f57c4003610 [GParamObject], object=0x7f57c41c0180 [GstInputSelector]) at ../../../../gobject/gobject.c:1175
#10 0x00007f5998d8b999 in g_object_notify
    (object=object@entry=0x7f57c41c0180 [GstInputSelector], property_name=property_name@entry=0x7f597532cb63 "active-pad")
    at ../../../../gobject/gobject.c:1223
#11 0x00007f5975305063 in gst_selector_pad_chain
    (pad=0x55bbe3e77c60 [GstSelectorPad], parent=0x7f57c41c0180 [GstInputSelector], buf=0x7f57d0325ae0) at gstinputselector.c:1100
#12 0x00007f598adb588b in gst_pad_chain_data_unchecked (data=0x7f57d0325ae0, type=4112, pad=0x55bbe3e77c60 [GstSelectorPad])
    at gstpad.c:4322
#13 0x00007f598adb588b in gst_pad_push_data
    (pad=pad@entry=0x7f57c41be340 [GstGhostPad], type=type@entry=4112, data=data@entry=0x7f57d0325ae0) at gstpad.c:4578
#14 0x00007f598adbdbb3 in gst_pad_push (pad=pad@entry=0x7f57c41be340 [GstGhostPad], buffer=buffer@entry=0x7f57d0325ae0)
    at gstpad.c:4697
#15 0x00007f598ada3aab in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7f57d0325ae0)
    at gstghostpad.c:127
#16 0x00007f598adb588b in gst_pad_chain_data_unchecked (data=0x7f57d0325ae0, type=4112, pad=0x7f57dc02f170 [GstProxyPad])
    at gstpad.c:4322
#17 0x00007f598adb588b in gst_pad_push_data
    (pad=pad@entry=0x7f57dc02a080 [GstDecodePad], type=type@entry=4112, data=data@entry=0x7f57d0325ae0) at gstpad.c:4578
#18 0x00007f598adbdbb3 in gst_pad_push (pad=pad@entry=0x7f57dc02a080 [GstDecodePad], buffer=buffer@entry=0x7f57d0325ae0)
    at gstpad.c:4697
#19 0x00007f598ada3aab in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7f57d0325ae0)
    at gstghostpad.c:127
#20 0x00007f598adb588b in gst_pad_chain_data_unchecked (data=0x7f57d0325ae0, type=4112, pad=0x55bbe3ed7a90 [GstProxyPad])
    at gstpad.c:4322
#21 0x00007f598adb588b in gst_pad_push_data
    (pad=pad@entry=0x7f57d01c2660 [GstPad], type=type@entry=4112, data=data@entry=0x7f57d0325ae0) at gstpad.c:4578
#22 0x00007f598adbdbb3 in gst_pad_push (pad=0x7f57d01c2660 [GstPad], buffer=buffer@entry=0x7f57d0325ae0) at gstpad.c:4697
#23 0x00007f597530da64 in gst_single_queue_push_one
    (allow_drop=<synthetic pointer>, object=0x7f57d0325ae0, sq=0x7f57d01caad0, mq=0x7f57d01c7040 [GstMultiQueue])
    at gstmultiqueue.c:1639
#24 0x00007f597530da64 in gst_multi_queue_loop (pad=<optimized out>) at gstmultiqueue.c:1959
#25 0x00007f598adea269 in gst_task_func (task=0x55bbe6957b90 [GstTask]) at gsttask.c:332
#26 0x00007f5999523b60 in g_thread_pool_thread_proxy (data=<optimized out>) at ../../../../glib/gthreadpool.c:307
#27 0x00007f5999523195 in g_thread_proxy (data=0x7f57d03cc280) at ../../../../glib/gthread.c:784
#28 0x00007f599ffca6db in start_thread (arg=0x7f57d7fff700) at pthread_create.c:463
#29 0x00007f59a194a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95