Bug 365148

Application: kdenlive (16.04.2)

Qt Version: 5.6.1
Frameworks Version: 5.22.0
Operating System: Linux 4.6.2-1-default x86_64
Distribution: "openSUSE Tumbleweed (20160626) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
recording video and on stopping kdenlive crashes
- Custom settings of the application:
!920x1080 30fps I think the webcam is capable of this

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 0x7f2abcc5b8c0 (LWP 3196))]

Thread 7 (Thread 0x7f2aa6552700 (LWP 3197)):
#0  0x00007f2ab4d9aa1d in poll () from /lib64/libc.so.6
#1  0x00007f2aaf1ec410 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f2aaf1ee1a9 in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f2aa8ab7579 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f2ab579c2d8 in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f2ab3489474 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f2ab4da33ed in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f2aa49cc700 (LWP 3198)):
#0  0x00007f2ab18360a9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f2ab17f1487 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f2ab17f1f7b in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f2ab17f216c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f2ab59c9aeb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f2ab597176a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f2ab57973b3 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f2ab73cf9b5 in ?? () from /usr/lib64/libQt5DBus.so.5
#8  0x00007f2ab579c2d8 in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f2ab3489474 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f2ab4da33ed in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f2a859e3700 (LWP 3199)):
#0  0x00007f2ab17ef16b in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f2ab17f19fc in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f2ab17f1ff4 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f2ab17f216c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f2ab59c9aeb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f2ab597176a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f2ab57973b3 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f2ab6b9c1e5 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f2ab579c2d8 in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f2ab3489474 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f2ab4da33ed in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f2a7f91d700 (LWP 3201)):
#0  0x00007f2ab18360a9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f2ab17f203b in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f2ab17f216c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f2ab59c9aeb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f2ab597176a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f2ab57973b3 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f2ab6b9c1e5 in ?? () from /usr/lib64/libQt5Qml.so.5
#7  0x00007f2ab579c2d8 in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f2ab3489474 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f2ab4da33ed in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f2a7d3ef700 (LWP 3658)):
#0  0x00007f2ab4d9aa1d in poll () from /lib64/libc.so.6
#1  0x00007f2ab17f2056 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f2ab17f216c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f2ab59c9aeb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f2ab597176a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f2ab57973b3 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f2ab579c2d8 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f2ab3489474 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f2ab4da33ed in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f2a5fffd700 (LWP 3660)):
#0  0x00007f2ab18360a0 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f2ab17f15b5 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f2ab17f1f7b in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f2ab17f216c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f2ab59c9aeb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f2ab597176a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f2ab57973b3 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f2ab579c2d8 in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f2ab3489474 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f2ab4da33ed in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f2abcc5b8c0 (LWP 3196)):
[KCrash Handler]
#6  0x00007f2abb84230e in Mlt::Consumer::is_stopped (this=0x3865dc0) at MltConsumer.cpp:124
#7  0x00000000007f5603 in Render::setProducer (this=0x37bb2c0, producer=producer@entry=0x0, position=position@entry=-1, isActive=true) at /usr/src/debug/kdenlive-16.04.2/src/renderer.cpp:355
#8  0x00000000006f7043 in Monitor::slotOpenClip (this=this@entry=0x3883990, controller=controller@entry=0x0, in=in@entry=-1, out=out@entry=-1) at /usr/src/debug/kdenlive-16.04.2/src/monitor/monitor.cpp:1300
#9  0x00000000006f717e in Monitor::stopCapture (this=0x3883990) at /usr/src/debug/kdenlive-16.04.2/src/monitor/monitor.cpp:1898
#10 0x00000000006ffec9 in RecManager::slotRecord (this=0x35bb330, record=<optimized out>) at /usr/src/debug/kdenlive-16.04.2/src/monitor/recmanager.cpp:205
#11 0x00007f2ab59a124c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#12 0x00007f2ab779e5c2 in QAction::toggled(bool) () from /usr/lib64/libQt5Widgets.so.5
#13 0x00007f2ab77a0ff0 in QAction::setChecked(bool) () from /usr/lib64/libQt5Widgets.so.5
#14 0x00007f2ab77a112c in QAction::activate(QAction::ActionEvent) () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f2ab78a7bbd in ?? () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f2ab78a7df4 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5
#17 0x00007f2ab797558a in QToolButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5
#18 0x00007f2ab77ed5c8 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f2ab7975669 in QToolButton::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007f2ab77a7aec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#21 0x00007f2ab77ade47 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007f2ab5973a20 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#23 0x00007f2ab77ac515 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib64/libQt5Widgets.so.5
#24 0x00007f2ab7807dc6 in ?? () from /usr/lib64/libQt5Widgets.so.5
#25 0x00007f2ab780a6e3 in ?? () from /usr/lib64/libQt5Widgets.so.5
#26 0x00007f2ab77a7aec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007f2ab77acf8f in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007f2ab5973a20 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f2ab5ecb703 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib64/libQt5Gui.so.5
#30 0x00007f2ab5eccf15 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib64/libQt5Gui.so.5
#31 0x00007f2ab5eaac0b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5
#32 0x00007f2aa8aed880 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#33 0x00007f2ab17f1e57 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#34 0x00007f2ab17f20c0 in ?? () from /usr/lib64/libglib-2.0.so.0
#35 0x00007f2ab17f216c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#36 0x00007f2ab59c9acf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#37 0x00007f2ab597176a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#38 0x00007f2ab5979f6c in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#39 0x000000000048b5a2 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kdenlive-16.04.2/src/main.cpp:130

Possible duplicates by query: bug 365134, bug 362923.

Reported using DrKonqi