Application: kdenlive (17.07.70)
 (Compiled from sources)
Qt Version: 5.7.1
Frameworks Version: 5.33.0
Operating System: Linux 4.10.9-gentoo x86_64
Distribution: "Gentoo Base System release 2.3"

-- Information about the crash:
Happens every time I close kdenlive.
It doesn't matter if I created/opened a project.

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f22842f4840 (LWP 7473))]

Thread 13 (Thread 0x7f22561f6700 (LWP 18755)):
#0  0x00007f228f0203c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f22915e77d8 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f22915e42f2 in ?? () from /usr/lib64/libQt5Core.so.5
#3  0x00007f22915e718c in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f2242c5a700 (LWP 8052)):
#0  0x00007f228f02001f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f226cb1a57e in ?? ()
#2  0x00007f2214618168 in ?? ()
#3  0x00007f22146181c8 in ?? ()
#4  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f2230ff9700 (LWP 8051)):
#0  0x00007f228f02001f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f226cb1a57e in ?? ()
#2  0x00007f2214617fc8 in ?? ()
#3  0x00007f2214618028 in ?? ()
#4  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f22317fa700 (LWP 8050)):
#0  0x00007f228f02001f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f226cb1a57e in ?? ()
#2  0x00007f2214617e28 in ?? ()
#3  0x00007f2214617e88 in ?? ()
#4  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f2246459700 (LWP 7486)):
#0  0x00007f2290b9622d in poll () from /lib64/libc.so.6
#1  0x00007f228bb7671c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f228bb7682c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f22917cbefb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f229177db6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f22915e2f44 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f22915e718c in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f224745b700 (LWP 7484)):
#0  0x00007f228bb75bfb in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f228bb7664b in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f228bb7682c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f22917cbefb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f229177db6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f22915e2f44 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f22915e718c in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f2255940700 (LWP 7481)):
#0  0x00007f2290b9622d in poll () from /lib64/libc.so.6
#1  0x00007f228bb7671c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f228bb7682c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f22917cbefb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f229177db6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f22915e2f44 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f229227eb85 in ?? () from /usr/lib64/libQt5Qml.so.5
#7  0x00007f22915e718c in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f22571f7700 (LWP 7479)):
#0  0x00007f228bbbc4a9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f228bb75660 in g_main_context_acquire () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f228bb765d5 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f228bb7682c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f22917cbefb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f229177db6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f22915e2f44 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f229227eb85 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f22915e718c in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f226f367700 (LWP 7478)):
#0  0x00007f228bbbc4c4 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f228bb76836 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f22917cbefb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#3  0x00007f229177db6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f22915e2f44 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#5  0x00007f22970a16a5 in ?? () from /usr/lib64/libQt5DBus.so.5
#6  0x00007f22915e718c in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f2277309700 (LWP 7477)):
#0  0x00007f2290b9622d in poll () from /lib64/libc.so.6
#1  0x00007f228bb7671c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f228bb76aa2 in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f227aa68446 in ?? () from /usr/lib64/libgio-2.0.so.0
#4  0x00007f228bb9e5d5 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f2277b0a700 (LWP 7476)):
#0  0x00007f2290b9622d in poll () from /lib64/libc.so.6
#1  0x00007f228bb7671c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f228bb7682c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f228bb76869 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f228bb9e5d5 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f2281fd4700 (LWP 7475)):
#0  0x00007f2290b9622d in poll () from /lib64/libc.so.6
#1  0x00007f228adf2882 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f228adf4697 in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f2283f0eb49 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f22915e718c in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f228f01a374 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f2290b9f60f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f22842f4840 (LWP 7473)):
[KCrash Handler]
#6  0x00007f225bffa1c0 in ?? ()
#7  0x00007f2296212cba in mlt_consumer_purge () from /usr/lib64/libmlt.so.6
#8  0x0000000000850dd5 in Render::stop (this=0x1f5e720) at /var/tmp/portage/kde-apps/kdenlive-9999/work/kdenlive-9999/src/renderer.cpp:680
#9  0x000000000073aa65 in Monitor::~Monitor (this=0x2bbb380, __in_chrg=<optimized out>) at /var/tmp/portage/kde-apps/kdenlive-9999/work/kdenlive-9999/src/monitor/monitor.cpp:364
#10 0x000000000073aaf9 in Monitor::~Monitor (this=0x2bbb380, __in_chrg=<optimized out>) at /var/tmp/portage/kde-apps/kdenlive-9999/work/kdenlive-9999/src/monitor/monitor.cpp:372
#11 0x0000000000837a96 in MainWindow::~MainWindow (this=this@entry=0x1701220, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /var/tmp/portage/kde-apps/kdenlive-9999/work/kdenlive-9999/src/mainwindow.cpp:781
#12 0x0000000000837bd9 in MainWindow::~MainWindow (this=0x1701220, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /var/tmp/portage/kde-apps/kdenlive-9999/work/kdenlive-9999/src/mainwindow.cpp:786
#13 0x00007f22917a6108 in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#14 0x00007f2292a3bbdb in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f2292b393db in QMainWindow::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f2294b9f897 in KMainWindow::event(QEvent*) () from /usr/lib64/libKF5XmlGui.so.5
#17 0x00007f2294be4995 in KXmlGuiWindow::event(QEvent*) () from /usr/lib64/libKF5XmlGui.so.5
#18 0x00007f22929f4a9c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f22929fc44e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007f229177ebba in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#21 0x00007f229178123b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#22 0x00007f22917855b9 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#23 0x000000000048fb05 in main (argc=1, argv=<optimized out>) at /var/tmp/portage/kde-apps/kdenlive-9999/work/kdenlive-9999/src/main.cpp:158

Possible duplicates by query: bug 378469.

Reported using DrKonqi