Application: plasmashell (5.4.3)

Qt Version: 5.5.0
Operating System: Linux 4.1.13-5-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:

I was using Firefox

- Unusual behavior I noticed:
Firefox windows covered the whole screen, including the menu bar. The Linux system was frozen, and I had to wait around 1 minute before I regain control of the system

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f786ac047c0 (LWP 20726))]

Thread 8 (Thread 0x7f785468e700 (LWP 20731)):
#0  0x00007f786415fc1d in poll () at /lib64/libc.so.6
#1  0x00007f7869086422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f786908800f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f78567dec29 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f786485655f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f78639690a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f786416804d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f78492a8700 (LWP 20824)):
#0  0x00007ffce6bb3b26 in clock_gettime ()
#1  0x00007f7864174c9d in clock_gettime () at /lib64/libc.so.6
#2  0x00007f7864906b06 in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007f7864a86089 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#4  0x00007f7864a86615 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f7864a8782e in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78608404ad in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f7860840d80 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f7860840f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#9  0x00007f7864a87a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f7864a2ea63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f786485184a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#12 0x00007f7867b3a5f8 in  () at /usr/lib64/libQt5Qml.so.5
#13 0x00007f786485655f in  () at /usr/lib64/libQt5Core.so.5
#14 0x00007f78639690a4 in start_thread () at /lib64/libpthread.so.0
#15 0x00007f786416804d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f783c9b7700 (LWP 20962)):
#0  0x00007ffce6bb3b26 in clock_gettime ()
#1  0x00007f7864174c9d in clock_gettime () at /lib64/libc.so.6
#2  0x00007f7864906b06 in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007f7864a86089 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#4  0x00007f7864a86615 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f7864a8782e in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78608404ad in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f7860840d80 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f7860840f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#9  0x00007f7864a87a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f7864a2ea63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f786485184a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#12 0x00007f7867b3a5f8 in  () at /usr/lib64/libQt5Qml.so.5
#13 0x00007f786485655f in  () at /usr/lib64/libQt5Core.so.5
#14 0x00007f78639690a4 in start_thread () at /lib64/libpthread.so.0
#15 0x00007f786416804d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f7836faf700 (LWP 20968)):
#0  0x00007f7864174682 in __libc_disable_asynccancel () at /lib64/libc.so.6
#1  0x00007f786415fc29 in poll () at /lib64/libc.so.6
#2  0x00007f7860840e64 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f7860840f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f7864a87a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f7864a2ea63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786485184a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f7867b3a5f8 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786485655f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f78639690a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786416804d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f7835680700 (LWP 20972)):
#0  0x00007f786396d05f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f786a2ed7eb in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f786a2ed819 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f78639690a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f786416804d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f77aea17700 (LWP 21125)):
#0  0x00007ffce6bb3b26 in clock_gettime ()
#1  0x00007f7864174c9d in clock_gettime () at /lib64/libc.so.6
#2  0x00007f7864906b06 in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007f7864a86089 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#4  0x00007f7864a86615 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f7864a8782e in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78608404ad in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f7860840d80 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f7860840f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#9  0x00007f7864a87a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f7864a2ea63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f786485184a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#12 0x00007f78686cdf82 in  () at /usr/lib64/libQt5Quick.so.5
#13 0x00007f786485655f in  () at /usr/lib64/libQt5Core.so.5
#14 0x00007f78639690a4 in start_thread () at /lib64/libpthread.so.0
#15 0x00007f786416804d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f77a3642700 (LWP 21189)):
#0  0x00007f786415fc1d in poll () at /lib64/libc.so.6
#1  0x00007f7860840e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f7860840f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f7864a87a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f7864a2ea63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786485184a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f77a4a6bcf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007f786485655f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78639690a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786416804d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f786ac047c0 (LWP 20726)):
[KCrash Handler]
#6  0x00007f7867ac4ae4 in QQmlContext::isValid() const () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f7867ab64d1 in QQmlExpression::QQmlExpression(QQmlScriptString const&, QQmlContext*, QObject*, QObject*) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f78686aa0b4 in  () at /usr/lib64/libQt5Quick.so.5
#9  0x00007f7867b6eb0f in QAbstractAnimationJob::setState(QAbstractAnimationJob::State) () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f7867b702b7 in QSequentialAnimationGroupJob::activateCurrentAnimation(bool) () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f7867b7039c in QSequentialAnimationGroupJob::uncontrolledAnimationFinished(QAbstractAnimationJob*) () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f7867b6e08d in QAbstractAnimationJob::finished() () at /usr/lib64/libQt5Qml.so.5
#13 0x00007f7867b6ed15 in QAbstractAnimationJob::setState(QAbstractAnimationJob::State) () at /usr/lib64/libQt5Qml.so.5
#14 0x00007f78686edaa9 in QQuickAnimatorProxyJob::setWindow(QQuickWindow*) () at /usr/lib64/libQt5Quick.so.5
#15 0x00007f7864a60996 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#16 0x00007f7868752822 in QQuickItem::windowChanged(QQuickWindow*) () at /usr/lib64/libQt5Quick.so.5
#17 0x00007f786875ebbf in QQuickItemPrivate::derefWindow() () at /usr/lib64/libQt5Quick.so.5
#18 0x00007f786875fe24 in QQuickItem::setParentItem(QQuickItem*) () at /usr/lib64/libQt5Quick.so.5
#19 0x00007f78687602c6 in QQuickItem::~QQuickItem() () at /usr/lib64/libQt5Quick.so.5
#20 0x00007f786877b256 in  () at /usr/lib64/libQt5Quick.so.5
#21 0x00007f7864a617e8 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#22 0x00007f786875d4ab in QQuickItem::event(QEvent*) () at /usr/lib64/libQt5Quick.so.5
#23 0x00007f7865da9e8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#24 0x00007f7865daecd8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#25 0x00007f7864a30ba5 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f7864a32d67 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f7864a885c3 in  () at /usr/lib64/libQt5Core.so.5
#28 0x00007f7860840c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#29 0x00007f7860840ed8 in  () at /usr/lib64/libglib-2.0.so.0
#30 0x00007f7860840f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#31 0x00007f7864a87a3c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#32 0x00007f7864a2ea63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#33 0x00007f7864a365d6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#34 0x000000000043467b in main ()

Reported using DrKonqi