Application: plasmashell (5.6.95)

Qt Version: 5.6.1
Frameworks Version: 5.23.0
Operating System: Linux 4.1.21-14-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

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

Few days ago plasmashell started crashing randomly when switching window / desktops. The most strange thing that it was stable few days after upgrading to 5.6.95, and I haven't changed anything in my system since then. Clearing cache doesn't help.

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 0x7f0f437dd7c0 (LWP 26162))]

Thread 9 (Thread 0x7f0f2d21f700 (LWP 26163)):
#0  0x00007f0f3cf14bbd in poll () at /lib64/libc.so.6
#1  0x00007f0f41e57422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f0f41e5900f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f0f2f574579 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f0f3d613a29 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f0f271ea700 (LWP 26164)):
#0  0x00007f0f395fc484 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f0f395fcd80 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0f395fcf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0f3d82634b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0f3d7d3fcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0f3d60ef5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0f3e38f225 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007f0f3d613a29 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f0f259ac700 (LWP 26165)):
#0  0x00007f0f3963ed14 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f0f395fc759 in g_main_context_query () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0f395fcdcf in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0f395fcf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f0f3d82634b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0f3d7d3fcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0f3d60ef5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0f40917b88 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f0f3d613a29 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f0f1fdc7700 (LWP 26166)):
#0  0x00007f0f3d824f85 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#1  0x00007f0f3d82611e in  () at /usr/lib64/libQt5Core.so.5
#2  0x00007f0f395fc4ad in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0f395fcd80 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f0f395fcf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f0f3d82634b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0f3d7d3fcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0f3d60ef5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0f40917b88 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f0f3d613a29 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f0f1e162700 (LWP 26167)):
#0  0x00007f0f3c72203f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0f42ed097b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f0f42ed09a9 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f0e8b410700 (LWP 26170)):
#0  0x00007f0f3cf10c8d in read () at /lib64/libc.so.6
#1  0x00007f0f3963db60 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0f395fc999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0f395fcdf8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f0f395fcf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f0f3d82634b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0f3d7d3fcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0f3d60ef5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0f41499692 in  () at /usr/lib64/libQt5Quick.so.5
#9  0x00007f0f3d613a29 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f0e7985e700 (LWP 26182)):
#0  0x00007f0f3cf14bbd in poll () at /lib64/libc.so.6
#1  0x00007f0f395fce64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0f395fcf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0f3d82634b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0f3d7d3fcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0f3d60ef5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0e7aeabcf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007f0f3d613a29 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f0e6aff8700 (LWP 26188)):
#0  0x00007f0f3d5e8500 in clock_gettime@plt () at /usr/lib64/libQt5Core.so.5
#1  0x00007f0f3d6be866 in  () at /usr/lib64/libQt5Core.so.5
#2  0x00007f0f3d8249a9 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#3  0x00007f0f3d824f25 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0f3d82611e in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0f395fc4ad in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#6  0x00007f0f395fcd80 in  () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f0f395fcf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f0f3d82634b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#9  0x00007f0f3d7d3fcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f0f3d60ef5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#11 0x00007f0f40917b88 in  () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f0f3d613a29 in  () at /usr/lib64/libQt5Core.so.5
#13 0x00007f0f3c71e0a4 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f0f3cf1cfed in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f0f437dd7c0 (LWP 26162)):
[KCrash Handler]
#6  0x00007f0f3d800725 in QMetaObject::activate(QObject*, int, void**) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0f406f2ca2 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f0f40936659 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f0f4095df1c in  () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f0f4095e76b in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f0f3d800129 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#12 0x00007f0f3d87606c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib64/libQt5Core.so.5
#13 0x00007f0e82dd2cc4 in  () at /usr/lib64/liblegacytaskmanager.so.5
#14 0x00007f0e82dd3557 in  () at /usr/lib64/liblegacytaskmanager.so.5
#15 0x00007f0f3d7ffba1 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#16 0x00007f0e82ddc768 in LegacyTaskManager::AbstractGroupableItem::changed(QFlags<LegacyTaskManager::TaskChange>) () at /usr/lib64/liblegacytaskmanager.so.5
#17 0x00007f0f3d7ffba1 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#18 0x00007f0e82ddc898 in LegacyTaskManager::Task::changed(QFlags<LegacyTaskManager::TaskChange>) () at /usr/lib64/liblegacytaskmanager.so.5
#19 0x00007f0e82dbb906 in LegacyTaskManager::Task::setActive(bool) () at /usr/lib64/liblegacytaskmanager.so.5
#20 0x00007f0e82dce1b9 in LegacyTaskManager::LegacyTaskManager::activeWindowChanged(unsigned long long) () at /usr/lib64/liblegacytaskmanager.so.5
#21 0x00007f0f3d8001b3 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#22 0x00007f0f404341e2 in KWindowSystem::activeWindowChanged(unsigned long long) () at /usr/lib64/libKF5WindowSystem.so.5
#23 0x00007f0f25bc44dd in  () at /usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#24 0x00007f0f3d7d3260 in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib64/libQt5Core.so.5
#25 0x00007f0f2f572924 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib64/libQt5XcbQpa.so.5
#26 0x00007f0f2f57497b in QXcbConnection::processXcbEvents() () at /usr/lib64/libQt5XcbQpa.so.5
#27 0x00007f0f3d801156 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#28 0x00007f0f3e75de9c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#29 0x00007f0f3e7624fa in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#30 0x00007f0f3d7d5fb5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#31 0x00007f0f3d7d7d9a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#32 0x00007f0f3d826ca3 in  () at /usr/lib64/libQt5Core.so.5
#33 0x00007f0f395fcc84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#34 0x00007f0f395fced8 in  () at /usr/lib64/libglib-2.0.so.0
#35 0x00007f0f395fcf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#36 0x00007f0f3d82632c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#37 0x00007f0f3d7d3fcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#38 0x00007f0f3d7dbeb6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#39 0x000000000041d2ea in main(int, char**) (argc=1, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.6.95/shell/main.cpp:166

Reported using DrKonqi