[kde] [Bug 392902] New: Kdenlive crashes when scurbbing thorugh timeline

Mark Bethel bugzilla_noreply at kde.org
Mon Apr 9 04:50:49 BST 2018 

https://bugs.kde.org/show_bug.cgi?id=392902

            Bug ID: 392902
           Summary: Kdenlive crashes when scurbbing thorugh timeline
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: fellcrustacean8 at gmail.com
  Target Milestone: ---

Application: kdenlive (17.12.2)

Qt Version: 5.10.1
Frameworks Version: 5.44.0
Operating System: Linux 4.15.15-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
Whenever the Movit Library is enabled, kdenlive becomes very unstable, this has
been an issue for a long time for me. However with GPU acceleration disabled,
kdenlive gains its stability back.

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f98fec44d80 (LWP 12243))]

Thread 32 (Thread 0x7f9875428700 (LWP 12456)):
[KCrash Handler]
#6  0x00007f98f70c2860 in raise () at /usr/lib/libc.so.6
#7  0x00007f98f70c3ec9 in abort () at /usr/lib/libc.so.6
#8  0x00007f98add307eb in movit::abort_gl_error(unsigned int, char const*, int)
() at /usr/lib/libmovit.so.8
#9  0x00007f98add58e9d in movit::YCbCrInput::set_gl_state(unsigned int,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
const&, unsigned int*) () at /usr/lib/libmovit.so.8
#10 0x00007f98add3c6f8 in movit::EffectChain::execute_phase(movit::Phase*,
std::map<movit::Phase*, unsigned int, std::less<movit::Phase*>,
std::allocator<std::pair<movit::Phase* const, unsigned int> > > const&,
std::vector<movit::EffectChain::DestinationTexture,
std::allocator<movit::EffectChain::DestinationTexture> > const&,
std::set<movit::Phase*, std::less<movit::Phase*>, std::allocator<movit::Phase*>
>*) () at /usr/lib/libmovit.so.8
#11 0x00007f98add4369d in movit::EffectChain::render(unsigned int,
std::vector<movit::EffectChain::DestinationTexture,
std::allocator<movit::EffectChain::DestinationTexture> > const&, unsigned int,
unsigned int, unsigned int, unsigned int) () at /usr/lib/libmovit.so.8
#12 0x00007f98add44496 in movit::EffectChain::render_to_fbo(unsigned int,
unsigned int, unsigned int) () at /usr/lib/libmovit.so.8
#13 0x00007f98aeef8c6b in
GlslManager::render_frame_texture(movit::EffectChain*, mlt_frame_s*, int, int,
unsigned char**) () at /usr/lib/mlt/libmltopengl.so
#14 0x00007f98aeefc52b in  () at /usr/lib/mlt/libmltopengl.so
#15 0x00007f98fdf301e3 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#16 0x00007f98fdf461ab in  () at /usr/lib/libmlt.so.6
#17 0x00007f98fdf30182 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#18 0x00007f98fdf43668 in  () at /usr/lib/libmlt.so.6
#19 0x0000563a7027270e in  ()
#20 0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#21 0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#22 0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 31 (Thread 0x7f98815e1700 (LWP 12455)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4399c in mlt_consumer_rt_frame () at /usr/lib/libmlt.so.6
#2  0x00007f98c426f5d3 in  () at /usr/lib/mlt/libmltsdl.so
#3  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 30 (Thread 0x7f980547a700 (LWP 12442)):
#0  0x00007f98ee7862f4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f98ee73f518 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f98f7e11264 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f98f7db332b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f98f7bc272e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7f9862ffd700 (LWP 12331)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7f98637fe700 (LWP 12330)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7f9863fff700 (LWP 12329)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7f9868ffc700 (LWP 12328)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7f98697fd700 (LWP 12327)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f9869ffe700 (LWP 12326)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f9874827700 (LWP 12325)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f9881ee2700 (LWP 12324)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98fdf4b9ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f983effd700 (LWP 12278)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f983f7fe700 (LWP 12277)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f983ffff700 (LWP 12276)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f98509af700 (LWP 12275)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f98511b0700 (LWP 12274)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f98519b1700 (LWP 12273)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f98521b2700 (LWP 12272)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f98529b3700 (LWP 12271)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98b936552f in  () at /usr/lib/libavutil.so.55
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f9898899700 (LWP 12259)):
#0  0x00007f98f71753d8 in read () at /usr/lib/libc.so.6
#1  0x00007f98ee784ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f98ee73eff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f98ee73f4c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#5  0x00007f98f7e11264 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#6  0x00007f98f7db332b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#7  0x00007f98f7bc272e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f989939a700 (LWP 12258)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98f7bc8fac in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f98f954e49a in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f98f954e924 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f9899b9b700 (LWP 12257)):
#0  0x00007f98f71753d8 in read () at /usr/lib/libc.so.6
#1  0x00007f98ee784ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f98ee73eff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f98ee73f4c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#5  0x00007f98f7e11264 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#6  0x00007f98f7db332b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#7  0x00007f98f7bc272e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f989a39c700 (LWP 12256)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98f7bc8fac in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f98f954e49a in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f98f954e924 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f989b7fe700 (LWP 12255)):
#0  0x00007f98f717997b in poll () at /usr/lib/libc.so.6
#1  0x00007f98ee73f523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f98f7e11264 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f98f7db332b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f98f7bc272e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f98f907d379 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f98ac52e700 (LWP 12253)):
#0  0x00007ffca27d9a07 in  ()
#1  0x00007ffca27d9cbe in clock_gettime ()
#2  0x00007f98f7191746 in clock_gettime () at /usr/lib/libc.so.6
#3  0x00007f98f7e10b52 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f98f7e0f2ea in QTimerInfoList::updateCurrentTime() () at
/usr/lib/libQt5Core.so.5
#5  0x00007f98f7e0f8c6 in QTimerInfoList::timerWait(timespec&) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f98f7e10faf in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f98ee73ea49 in g_main_context_prepare () at
/usr/lib/libglib-2.0.so.0
#8  0x00007f98ee73f44e in  () at /usr/lib/libglib-2.0.so.0
#9  0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#10 0x00007f98f7e11264 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#11 0x00007f98f7db332b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#12 0x00007f98f7bc272e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#13 0x00007f98f907d379 in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#15 0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#16 0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f98a3b60700 (LWP 12251)):
#0  0x00007f98f717997b in poll () at /usr/lib/libc.so.6
#1  0x00007f98a53c8c90 in  () at /usr/lib/libusb-1.0.so.0
#2  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f98d60a0700 (LWP 12249)):
#0  0x00007f98f719102f in __libc_enable_asynccancel () at /usr/lib/libc.so.6
#1  0x00007f98f7179966 in poll () at /usr/lib/libc.so.6
#2  0x00007f98ee73f523 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f98f7e11264 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f98f7db332b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f98f7bc272e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f98fa9c6416 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f98d7703700 (LWP 12248)):
#0  0x00007f98f71753d8 in read () at /usr/lib/libc.so.6
#1  0x00007f98ee784ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f98ee73eff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f98ee73f4c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f98ee73f8e2 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#5  0x00007f98ebee7348 in  () at /usr/lib/libgio-2.0.so.0
#6  0x00007f98ee767a2a in  () at /usr/lib/libglib-2.0.so.0
#7  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f98d7f04700 (LWP 12247)):
#0  0x00007f98f717997b in poll () at /usr/lib/libc.so.6
#1  0x00007f98ee73f523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f98ee73f692 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f98ee767a2a in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f98e11a7700 (LWP 12246)):
#0  0x00007f98f717997b in poll () at /usr/lib/libc.so.6
#1  0x00007f98ede62180 in  () at /usr/lib/libxcb.so.1
#2  0x00007f98ede63e4b in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f98e3b3a82a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f98f7bc7acd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f98e4d19700 (LWP 12245)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98f78445bd in __gthread_cond_wait (__mutex=<optimized out>,
__cond=<optimized out>) at
/build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f98f78445bd in
std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized
out>, __lock=...) at
/build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f98f424e379 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f98f424e4c9 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f98f784ab9f in std::execute_native_thread_routine(void*)
(__p=0x563a71f2ec50) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:83
#6  0x00007f98f51ce08c in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f98f7183e7f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f98fec44d80 (LWP 12243)):
#0  0x00007f98f51d43bd in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f98ede62393 in  () at /usr/lib/libxcb.so.1
#2  0x00007f98ede63b3f in  () at /usr/lib/libxcb.so.1
#3  0x00007f98ede63c51 in xcb_wait_for_reply () at /usr/lib/libxcb.so.1
#4  0x00007f98e1c2cf61 in xcb_icccm_get_wm_hints_reply () at
/usr/lib/libxcb-icccm.so.4
#5  0x00007f98e3b537f7 in QXcbWindow::updateDoesNotAcceptFocus(bool) () at
/usr/lib/libQt5XcbQpa.so.5
#6  0x00007f98e3b58832 in QXcbWindow::setWindowFlags(QFlags<Qt::WindowType>) ()
at /usr/lib/libQt5XcbQpa.so.5
#7  0x00007f98e3b59887 in QXcbWindow::create() () at /usr/lib/libQt5XcbQpa.so.5
#8  0x00007f98e3b42dd2 in QXcbIntegration::createPlatformWindow(QWindow*) const
() at /usr/lib/libQt5XcbQpa.so.5
#9  0x00007f98f8332cee in QWindowPrivate::create(bool, unsigned long long) ()
at /usr/lib/libQt5Gui.so.5
#10 0x00007f98f9b9e0c0 in QWidgetPrivate::create_sys(unsigned long long, bool,
bool) () at /usr/lib/libQt5Widgets.so.5
#11 0x00007f98f9b9e780 in QWidget::create(unsigned long long, bool, bool) () at
/usr/lib/libQt5Widgets.so.5
#12 0x00007f98f9babbca in QWidget::setVisible(bool) () at
/usr/lib/libQt5Widgets.so.5
#13 0x00007f98f9b90b8b in QToolTip::showText(QPoint const&, QString const&,
QWidget*, QRect const&, int) () at /usr/lib/libQt5Widgets.so.5
#14 0x00007f98f9bac237 in QWidget::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#15 0x00007f98f9d49745 in QToolButton::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#16 0x00007f98f9b6bfec in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#17 0x00007f98f9b744ac in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#18 0x00007f98f7db4cf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#19 0x00007f98f9b7228a in QApplication::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#20 0x00007f98f9b6bfec in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#21 0x00007f98f9b739c6 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#22 0x00007f98f7db4cf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#23 0x00007f98f7e10688 in QTimerInfoList::activateTimers() () at
/usr/lib/libQt5Core.so.5
#24 0x00007f98f7e10eba in  () at /usr/lib/libQt5Core.so.5
#25 0x00007f98ee73f368 in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#26 0x00007f98ee73f5b1 in  () at /usr/lib/libglib-2.0.so.0
#27 0x00007f98ee73f63e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#28 0x00007f98f7e11241 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#29 0x00007f98e3bc2482 in  () at /usr/lib/libQt5XcbQpa.so.5
#30 0x00007f98f7db332b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#31 0x00007f98f7dbc728 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#32 0x0000563a6ff938a5 in  ()
#33 0x00007f98f70aef4a in __libc_start_main () at /usr/lib/libc.so.6
#34 0x0000563a6ff940ba in _start ()

Reported using DrKonqi

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