Application: plasmashell (5.10.3)

Qt Version: 5.9.1
Frameworks Version: 5.36.0
Operating System: Linux 4.11.8-2-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed:
Plasmashell already ran at 48% for a while. When I closed an Okular window, it crashed and restarted. I have observed this behaviour before, typically when closing more than one Okular window in quick succession.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f11c65fa8c0 (LWP 3204))]

Thread 10 (Thread 0x7f10e29f6700 (LWP 9521)):
#0  0x00007f11bfc1e18d in poll () at /lib64/libc.so.6
#1  0x00007f11b6a30881 in  () at /usr/lib64/libpulse.so.0
#2  0x00007f11b6a22240 in pa_mainloop_poll () at /usr/lib64/libpulse.so.0
#3  0x00007f11b6a228d0 in pa_mainloop_iterate () at /usr/lib64/libpulse.so.0
#4  0x00007f11b6a22960 in pa_mainloop_run () at /usr/lib64/libpulse.so.0
#5  0x00007f11b6a307c9 in  () at /usr/lib64/libpulse.so.0
#6  0x00007f11b5a810b8 in  () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f10e3fff700 (LWP 9520)):
#0  0x00007ffd1353da8c in clock_gettime ()
#1  0x00007f11bfc35076 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f11c053c0c1 in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007f11c053a999 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#4  0x00007f11c053af15 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f11c053c45e in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f11bac53258 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f11bac53c4b in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f11bac53e2c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#9  0x00007f11c053c6ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f11c04e535a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f11c031531a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#12 0x00007f11c3460635 in  () at /usr/lib64/libQt5Qml.so.5
#13 0x00007f11c0319d2e in  () at /usr/lib64/libQt5Core.so.5
#14 0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#15 0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f10f6afb700 (LWP 3859)):
#0  0x00007f11bfc1e18d in poll () at /lib64/libc.so.6
#1  0x00007f11bac53d19 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f11bac53e2c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f11c053c6ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f11c04e535a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f11c031531a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f10f939cf37 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007f11c0319d2e in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f110cbac700 (LWP 3732)):
#0  0x00007ffd1353db10 in clock_gettime ()
#1  0x00007f11bfc35076 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f11c053c0c1 in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007f11c053a999 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#4  0x00007f11c053af15 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f11c053c45e in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f11bac53258 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f11bac53c4b in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f11bac53e2c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#9  0x00007f11c053c6ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f11c04e535a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f11c031531a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#12 0x00007f11c4007342 in  () at /usr/lib64/libQt5Quick.so.5
#13 0x00007f11c0319d2e in  () at /usr/lib64/libQt5Core.so.5
#14 0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#15 0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f1197fff700 (LWP 3705)):
#0  0x00007f11bf4e75dd in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f11c5ce18e4 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f11c5ce1929 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f119ebb2700 (LWP 3465)):
#0  0x00007f11bfc1e18d in poll () at /lib64/libc.so.6
#1  0x00007f11bac53d19 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f11bac53e2c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f11c053c6ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f11c04e535a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f11c031531a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f11c3460635 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f11c0319d2e in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f11ac9ee700 (LWP 3336)):
#0  0x00007f11bfc1e18d in poll () at /lib64/libc.so.6
#1  0x00007f11bac53d19 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f11bac53e2c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f11c053c6ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f11c04e535a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f11c031531a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f11c3460635 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f11c0319d2e in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f11ae434700 (LWP 3265)):
#0  0x00007ffd1353db10 in clock_gettime ()
#1  0x00007f11bfc35076 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f11c053c0c1 in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007f11c053a999 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#4  0x00007f11c053af15 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f11c053c45e in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f11bac53258 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f11bac53c4b in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f11bac53e2c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#9  0x00007f11c053c6ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f11c04e535a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f11c031531a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#12 0x00007f11c09bfa45 in  () at /usr/lib64/libQt5DBus.so.5
#13 0x00007f11c0319d2e in  () at /usr/lib64/libQt5Core.so.5
#14 0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#15 0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f11b04b4700 (LWP 3247)):
#0  0x00007f11bfc1e18d in poll () at /lib64/libc.so.6
#1  0x00007f11c4c09387 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f11c4c0b16a in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f11b2e58449 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f11c0319d2e in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f11bf4e14d7 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f11bfc27b2f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f11c65fa8c0 (LWP 3204)):
[KCrash Handler]
#6  0x00007f11c04abc81 in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f11c04abfbc in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f11c04b2241 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f11c051425a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f11c048654e in QAbstractItemModel::rowsRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f11c048d31b in QAbstractItemModel::endRemoveRows() () at /usr/lib64/libQt5Core.so.5
#12 0x00007f11030b13fb in TaskManager::TaskGroupingProxyModel::Private::sourceRowsAboutToBeRemoved(QModelIndex const&, int, int) () at /usr/lib64/libtaskmanager.so.6
#13 0x00007f11030b3d99 in  () at /usr/lib64/libtaskmanager.so.6
#14 0x00007f11c051425a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#15 0x00007f11c04864ee in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#16 0x00007f11c048ccfb in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib64/libQt5Core.so.5
#17 0x00007f11c04afd35 in  () at /usr/lib64/libQt5Core.so.5
#18 0x00007f11c04afe8c in  () at /usr/lib64/libQt5Core.so.5
#19 0x00007f11c04b2220 in  () at /usr/lib64/libQt5Core.so.5
#20 0x00007f11c051425a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#21 0x00007f11c04864ee in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#22 0x00007f11c048ccfb in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib64/libQt5Core.so.5
#23 0x00007f1106d0dc8f in  () at /usr/lib64/libKF5ItemModels.so.5
#24 0x00007f1106d0e051 in  () at /usr/lib64/libKF5ItemModels.so.5
#25 0x00007f11c051425a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f11c04864ee in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f11c048ccfb in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib64/libQt5Core.so.5
#28 0x00007f11c04a8061 in  () at /usr/lib64/libQt5Core.so.5
#29 0x00007f11c051425a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#30 0x00007f11c04864ee in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#31 0x00007f11c048ccfb in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib64/libQt5Core.so.5
#32 0x00007f11030cc50e in TaskManager::XWindowTasksModel::Private::removeWindow(unsigned long long) () at /usr/lib64/libtaskmanager.so.6
#33 0x00007f11c051435c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#34 0x00007f11c2f82ff2 in KWindowSystem::windowRemoved(unsigned long long) () at /usr/lib64/libKF5WindowSystem.so.5
#35 0x00007f11ace0e8d9 in  () at /usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#36 0x00007f11c2f7b81c in NETRootInfo::update(QFlags<NET::Property>, QFlags<NET::Property2>) () at /usr/lib64/libKF5WindowSystem.so.5
#37 0x00007f11c2f7c552 in NETRootInfo::event(xcb_generic_event_t*, QFlags<NET::Property>*, QFlags<NET::Property2>*) () at /usr/lib64/libKF5WindowSystem.so.5
#38 0x00007f11c2f7c8b5 in NETRootInfo::event(xcb_generic_event_t*, unsigned long*, int) () at /usr/lib64/libKF5WindowSystem.so.5
#39 0x00007f11ace0e01d in  () at /usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#40 0x00007f11c04e3eaf in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib64/libQt5Core.so.5
#41 0x00007f11b2e59960 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib64/libQt5XcbQpa.so.5
#42 0x00007f11b2e5a5ac in QXcbConnection::processXcbEvents() () at /usr/lib64/libQt5XcbQpa.so.5
#43 0x00007f11c0514c42 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#44 0x00007f11c14f593c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#45 0x00007f11c14fccb4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#46 0x00007f11c04e6d48 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#47 0x00007f11c04e9335 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#48 0x00007f11c053d013 in  () at /usr/lib64/libQt5Core.so.5
#49 0x00007f11bac53b67 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#50 0x00007f11bac53d98 in  () at /usr/lib64/libglib-2.0.so.0
#51 0x00007f11bac53e2c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#52 0x00007f11c053c68f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#53 0x00007f11c04e535a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#54 0x00007f11c04edbe4 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#55 0x0000560c49331cf2 in  ()
#56 0x00007f11bfb5a46a in __libc_start_main () at /lib64/libc.so.6
#57 0x0000560c4933206a in _start ()

Reported using DrKonqi