[kde] [Bug 369294] New: Crash after changing monitor

jamie marchant via KDE Bugzilla bugzilla_noreply at kde.org
Sat Sep 24 21:35:36 BST 2016 

https://bugs.kde.org/show_bug.cgi?id=369294

            Bug ID: 369294
           Summary: Crash after changing monitor
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: jamie.marchant at sympatico.ca

Application: kdenlive (16.04.2)

Qt Version: 5.6.1
Frameworks Version: 5.25.0
Operating System: Linux 4.7.3-100.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

-- Information about the crash:
- What I was doing when the application crashed:
I open the moniotir on a secound and treid playing the video I was working on.
It did not play but this is a seprete bug(if it can be reproduced). I can't
remember what I did next but I closed a bunch of parts in the layout including
the monitor. I palyed the video again and a window that said 'Mplayer' poped
up, I treid makeing this fullscreen but it did not work so I dceicid to close
it and try again. I hit something like 'view' -> 'monitor' and now the program
won't come up at all. I seem to have currupted my layout. As I have some
editing to do I will reset my setting by deleting the configuration files.

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 0x7f8f2b975940 (LWP 8955))]

Thread 13 (Thread 0x7f8f225f6700 (LWP 8956)):
#0  0x00007f8f3c2e8b7d in poll () at /lib64/libc.so.6
#1  0x00007f8f3908a272 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f8f3908bee7 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f8f24db0039 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#5  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f8f18090700 (LWP 8961)):
#0  0x00007f8f3c2e476d in read () at /lib64/libc.so.6
#1  0x00007f8f36b7f3f0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007f8f36b3bc84 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f8f36b3c130 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#4  0x00007f8f36b3c29c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#5  0x00007f8f3d0ddb5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#6  0x00007f8f3d08e25a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#7  0x00007f8f3ceeebd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f8f467a0675 in QDBusConnectionManager::run() () at
/lib64/libQt5DBus.so.5
#9  0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#10 0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f8f14d42700 (LWP 8962)):
#0  0x00007f8f38a59b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8f162f7e43 in radeon_drm_cs_emit_ioctl () at
/usr/lib64/dri/r600_dri.so
#2  0x00007f8f162f7597 in impl_thrd_routine () at /usr/lib64/dri/r600_dri.so
#3  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f8efe250700 (LWP 8964)):
#0  0x00007f8f3c2e8b7d in poll () at /lib64/libc.so.6
#1  0x00007f8f36b3c18c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f8f36b3c29c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f8f3d0ddb5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f8f3d08e25a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f8f3ceeebd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f8f406d57f5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f8efd24f700 (LWP 8965)):
#0  0x00007f8f38a59ec9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8f3cef3638 in QWaitCondition::wait(QMutex*, unsigned long) () at
/lib64/libQt5Core.so.5
#2  0x00007f8f3cef00b2 in QThreadPoolThread::run() () at /lib64/libQt5Core.so.5
#3  0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#4  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#5  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f8efca4e700 (LWP 8966)):
#0  0x00007f8f36b80779 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f8f36b3c288 in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#2  0x00007f8f3d0ddb5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#3  0x00007f8f3d08e25a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#4  0x00007f8f3ceeebd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#5  0x00007f8f406d57f5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#6  0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#8  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f8eeec62700 (LWP 8972)):
#0  0x00007f8f38a59b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8f02a480fa in consumer_thread () at /usr/lib64/mlt/libmltsdl.so
#2  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#3  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f8eee098700 (LWP 8973)):
#0  0x00007f8f38a59b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8f3908a4c9 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f8f3908bc27 in wait_for_reply () at /lib64/libxcb.so.1
#3  0x00007f8f3908bd31 in xcb_wait_for_reply () at /lib64/libxcb.so.1
#4  0x00007f8f3b803197 in _XReply () at /lib64/libX11.so.6
#5  0x00007f8f454b43ea in DRI2GetBuffersWithFormat () at /lib64/libGL.so.1
#6  0x00007f8f454b4727 in dri2GetBuffersWithFormat () at /lib64/libGL.so.1
#7  0x00007f8f15f3246a in dri2_allocate_textures () at
/usr/lib64/dri/r600_dri.so
#8  0x00007f8f15f2ed8c in dri_st_framebuffer_validate () at
/usr/lib64/dri/r600_dri.so
#9  0x00007f8f15e5794e in st_framebuffer_validate () at
/usr/lib64/dri/r600_dri.so
#10 0x00007f8f15e58c60 in st_api_make_current () at /usr/lib64/dri/r600_dri.so
#11 0x00007f8f15f2e861 in dri_make_current () at /usr/lib64/dri/r600_dri.so
#12 0x00007f8f15f2d836 in driBindContext () at /usr/lib64/dri/r600_dri.so
#13 0x00007f8f454b61ab in dri2_bind_context () at /lib64/libGL.so.1
#14 0x00007f8f4548c4f5 in glXMakeCurrentReadSGI () at /lib64/libGL.so.1
#15 0x00007f8f46933121 in QGLXContext::makeCurrent(QPlatformSurface*) () at
/usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#16 0x00007f8f3d400438 in QOpenGLContext::makeCurrent(QSurface*) () at
/lib64/libQt5Gui.so.5
#17 0x0000559fa38e7e2d in FrameRenderer::showFrame(Mlt::Frame) ()
#18 0x0000559fa3a3332c in FrameRenderer::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) ()
#19 0x00007f8f3d0b7871 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#20 0x00007f8f3feea10c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#21 0x00007f8f3feef646 in QApplication::notify(QObject*, QEvent*) () at
/lib64/libQt5Widgets.so.5
#22 0x00007f8f3d08f3ea in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#23 0x00007f8f3d09140a in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /lib64/libQt5Core.so.5
#24 0x00007f8f3d0ddac3 in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () at /lib64/libQt5Core.so.5
#25 0x00007f8f36b3be5a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#26 0x00007f8f36b3c1f0 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#27 0x00007f8f36b3c29c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#28 0x00007f8f3d0ddb5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#29 0x00007f8f3d08e25a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#30 0x00007f8f3ceeebd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#31 0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#32 0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#33 0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f8eed897700 (LWP 8974)):
#0  0x00007f8f38a59b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8f4525cad3 in consumer_read_ahead_thread () at /lib64/libmlt.so.6
#2  0x0000559fa38e71bd in RenderThread::run() ()
#3  0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#4  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#5  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f8eed096700 (LWP 8975)):
#0  0x00007f8f3c2e8b7d in poll () at /lib64/libc.so.6
#1  0x00007f8f36b3c18c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f8f36b3c29c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f8f3d0ddb5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f8f3d08e25a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f8f3ceeebd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f8f3cef300c in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#8  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f8eec895700 (LWP 8978)):
#0  0x00007f8f3c2e8b7d in poll () at /lib64/libc.so.6
#1  0x00007f8f081d3766 in snd1_pcm_wait_nocheck () at /lib64/libasound.so.2
#2  0x00007f8f081d7ffe in snd1_pcm_write_areas () at /lib64/libasound.so.2
#3  0x00007f8f081e652a in snd_pcm_plugin_writei () at /lib64/libasound.so.2
#4  0x00007f8f07f17eee in ALSA_PlayAudio () at /lib64/libSDL-1.2.so.0
#5  0x00007f8f07eec910 in SDL_RunAudio () at /lib64/libSDL-1.2.so.0
#6  0x00007f8f07ef5008 in SDL_RunThread () at /lib64/libSDL-1.2.so.0
#7  0x00007f8f07f37f99 in RunThread () at /lib64/libSDL-1.2.so.0
#8  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f8edffff700 (LWP 8979)):
#0  0x00007f8f38a59b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8f02a476dd in video_thread () at /usr/lib64/mlt/libmltsdl.so
#2  0x00007f8f38a5461a in start_thread () at /lib64/libpthread.so.0
#3  0x00007f8f3c2f45fd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f8f2b975940 (LWP 8955)):
[KCrash Handler]
#6  0x00007f8f3d3ffe70 in QOpenGLContext::shareGroup() const () at
/lib64/libQt5Gui.so.5
#7  0x00007f8f3d632654 in qt_gl_functions(QOpenGLContext*) [clone
.constprop.201] () at /lib64/libQt5Gui.so.5
#8  0x00007f8f3d63282b in QOpenGLFunctions::initializeOpenGLFunctions() () at
/lib64/libQt5Gui.so.5
#9  0x00007f8f446aea16 in
QSGBatchRenderer::Renderer::Renderer(QSGRenderContext*) () at
/lib64/libQt5Quick.so.5
#10 0x00007f8f446cdcb1 in QSGRenderContext::createRenderer() () at
/lib64/libQt5Quick.so.5
#11 0x00007f8f44714f10 in QQuickWindowPrivate::syncSceneGraph() () at
/lib64/libQt5Quick.so.5
#12 0x00007f8f446e2e78 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*)
() at /lib64/libQt5Quick.so.5
#13 0x00007f8f446e4578 in
QSGGuiThreadRenderLoop::exposureChanged(QQuickWindow*) () at
/lib64/libQt5Quick.so.5
#14 0x00007f8f3d3d4275 in QWindow::event(QEvent*) () at /lib64/libQt5Gui.so.5
#15 0x00007f8f4471e445 in QQuickWindow::event(QEvent*) () at
/lib64/libQt5Quick.so.5
#16 0x00007f8f3feea10c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#17 0x00007f8f3feef646 in QApplication::notify(QObject*, QEvent*) () at
/lib64/libQt5Widgets.so.5
#18 0x00007f8f3d08f3ea in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#19 0x00007f8f3d3c9dbd in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
() at /lib64/libQt5Gui.so.5
#20 0x00007f8f3d3caa2d in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /lib64/libQt5Gui.so.5
#21 0x00007f8f3d3ab55b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /lib64/libQt5Gui.so.5
#22 0x00007f8f24de65b0 in userEventSourceDispatch(_GSource*, int (*)(void*),
void*) () at /lib64/libQt5XcbQpa.so.5
#23 0x00007f8f36b3be5a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#24 0x00007f8f36b3c1f0 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#25 0x00007f8f36b3c29c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#26 0x00007f8f3d0ddb3f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#27 0x00007f8f3d08e25a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#28 0x00007f8f3d095bdc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#29 0x0000559fa368a4da in main ()

Reported using DrKonqi

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