Application: plasmashell (5.6.4)
 (Compiled from sources)
Qt Version: 5.6.0
Frameworks Version: 5.22.0
Operating System: Linux 4.5.7-200.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

-- Information about the crash:
- What I was doing when the application crashed:
I was changing from an open Firefox window to a Sametime chat I had open with Alt+Tab

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcd0d6a4940 (LWP 3006))]

Thread 7 (Thread 0x7fcd029b9700 (LWP 3010)):
#0  0x00007fcd1cf84e44 in QMutex::lock() () from /lib64/libQt5Core.so.5
#1  0x00007fcd1d1b50cf in postEventSourcePrepare(_GSource*, int*) () from /lib64/libQt5Core.so.5
#2  0x00007fcd17a3172d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#3  0x00007fcd17a320bb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007fcd17a3229c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007fcd1d1b5a4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007fcd1d15e4ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007fcd1cf87f34 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007fcd1d94d4b5 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#9  0x00007fcd1cf8cd48 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#10 0x00007fcd1b6b761a in start_thread () from /lib64/libpthread.so.0
#11 0x00007fcd1c38659d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fcd01179700 (LWP 3088)):
#0  0x00007fffac1df969 in ?? ()
#1  0x00007fffac1dfc65 in clock_gettime ()
#2  0x00007fcd1c394816 in clock_gettime () from /lib64/libc.so.6
#3  0x00007fcd1d038d86 in qt_gettime() () from /lib64/libQt5Core.so.5
#4  0x00007fcd1d1b35d9 in QTimerInfoList::updateCurrentTime() () from /lib64/libQt5Core.so.5
#5  0x00007fcd1d1b3b45 in QTimerInfoList::timerWait(timespec&) () from /lib64/libQt5Core.so.5
#6  0x00007fcd1d1b4f2e in timerSourcePrepare(_GSource*, int*) () from /lib64/libQt5Core.so.5
#7  0x00007fcd17a3172d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#8  0x00007fcd17a320bb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#9  0x00007fcd17a3229c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#10 0x00007fcd1d1b5a4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#11 0x00007fcd1d15e4ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#12 0x00007fcd1cf87f34 in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007fcd203970d5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#14 0x00007fcd1cf8cd48 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#15 0x00007fcd1b6b761a in start_thread () from /lib64/libpthread.so.0
#16 0x00007fcd1c38659d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fccf1074700 (LWP 3111)):
#0  0x00007fcd1c37ab1d in poll () from /lib64/libc.so.6
#1  0x00007fcd17a3218c in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fcd17a3229c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fcd1d1b5a4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007fcd1d15e4ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007fcd1cf87f34 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fcd203970d5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007fcd1cf8cd48 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007fcd1b6b761a in start_thread () from /lib64/libpthread.so.0
#9  0x00007fcd1c38659d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fcceb612700 (LWP 3135)):
#0  0x00007fcd17a31771 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#1  0x00007fcd17a320bb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fcd17a3229c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fcd1d1b5a4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007fcd1d15e4ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007fcd1cf87f34 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fcd203970d5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007fcd1cf8cd48 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007fcd1b6b761a in start_thread () from /lib64/libpthread.so.0
#9  0x00007fcd1c38659d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fcce9cf0700 (LWP 3141)):
#0  0x00007fcd1b6bcb20 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcd22e372d4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007fcd22e37319 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007fcd1b6b761a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcd1c38659d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fcc62f3c700 (LWP 3251)):
#0  0x00007fcd17a76794 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007fcd17a31b5a in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007fcd17a32130 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007fcd17a3229c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007fcd1d1b5a4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007fcd1d15e4ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007fcd1cf87f34 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007fcd20d35ca6 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#8  0x00007fcd1cf8cd48 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007fcd1b6b761a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fcd1c38659d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fcd0d6a4940 (LWP 3006)):
[KCrash Handler]
#5  0x00007fccf2f29e7f in brw_workaround_depthstencil_alignment () from /usr/lib64/dri/i965_dri.so
#6  0x00007fccf2f120c3 in brw_clear () from /usr/lib64/dri/i965_dri.so
#7  0x00007fcd20d66c6a in QSGBatchRenderer::Renderer::renderBatches() () from /lib64/libQt5Quick.so.5
#8  0x00007fcd20d6c654 in QSGBatchRenderer::Renderer::render() () from /lib64/libQt5Quick.so.5
#9  0x00007fcd20d7839f in QSGRenderer::renderScene(QSGBindable const&) () from /lib64/libQt5Quick.so.5
#10 0x00007fcd20d78beb in QSGRenderer::renderScene(unsigned int) () from /lib64/libQt5Quick.so.5
#11 0x00007fcd20d88efe in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /lib64/libQt5Quick.so.5
#12 0x00007fcd20dd0509 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /lib64/libQt5Quick.so.5
#13 0x00007fcd20d9f085 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () from /lib64/libQt5Quick.so.5
#14 0x00007fcd20da0718 in QSGGuiThreadRenderLoop::exposureChanged(QQuickWindow*) () from /lib64/libQt5Quick.so.5
#15 0x00007fcd1d4b8a75 in QWindow::event(QEvent*) () from /lib64/libQt5Gui.so.5
#16 0x00007fcd20dda3a5 in QQuickWindow::event(QEvent*) () from /lib64/libQt5Quick.so.5
#17 0x00007fcd22f6b1e3 in PlasmaQuick::Dialog::event(QEvent*) () from /lib64/libKF5PlasmaQuick.so.5
#18 0x00007fccf3ddc6c5 in ToolTipDialog::event(QEvent*) () from /usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#19 0x00007fcd1db1ec0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#20 0x00007fcd1db23e76 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#21 0x00007fcd1d160748 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#22 0x00007fcd1d4ae97d in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /lib64/libQt5Gui.so.5
#23 0x00007fcd1d4af56d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib64/libQt5Gui.so.5
#24 0x00007fcd1d48c6eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Gui.so.5
#25 0x00007fcd0624ab80 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5XcbQpa.so.5
#26 0x00007fcd17a31e5a in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#27 0x00007fcd17a321f0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#28 0x00007fcd17a3229c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#29 0x00007fcd1d1b5a2f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#30 0x00007fcd1d15e4ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#31 0x00007fcd1d166b8c in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#32 0x000055f96ce29216 in main ()

Possible duplicates by query: bug 362769, bug 360726, bug 354031, bug 353923, bug 353791.

Reported using DrKonqi