Application: plasmashell (5.9.5)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.10.0-42-generic x86_64
Distribution: Ubuntu 17.04

-- Information about the crash:
- What I was doing when the application crashed:
I just closed a Chromium window, nothing else. Chromium was launched trough firejail if that matters.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f16ce15b280 (LWP 5111))]

Thread 9 (Thread 0x7f15e1e44700 (LWP 23775)):
#0  0x00007f16c7d2bd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f16bc6f7df1 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f16bc6e9601 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f16bc6e9c9e in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f16bc6e9d50 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f16bc6f7d39 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f16bb93b7d8 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f16c72cd6da in start_thread (arg=0x7f15e1e44700) at pthread_create.c:456
#8  0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f15f996c700 (LWP 23774)):
#0  0x00007f16c7d278ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f16c29c1b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16c297d042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16c297d514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f16c297d68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f16c864e0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f16c85f7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f16c8425f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16cb2eadf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f16c842ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f16c72cd6da in start_thread (arg=0x7f15f996c700) at pthread_create.c:456
#11 0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f1600b69700 (LWP 5304)):
#0  0x00007f16c7d2bd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f16c297d576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16c297d68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16c864e0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f16c85f7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f16c8425f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f16030865c7 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f16c842ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16c72cd6da in start_thread (arg=0x7f1600b69700) at pthread_create.c:456
#9  0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f161544e700 (LWP 5235)):
#0  0x00007f16c29c2ed9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f16c297ca79 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16c297d49b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16c297d68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f16c864e0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f16c85f7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f16c8425f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f16cbe714c6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f16c842ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f16c72cd6da in start_thread (arg=0x7f161544e700) at pthread_create.c:456
#10 0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f16a3fff700 (LWP 5230)):
#0  0x00007f16c72d3510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f16cdadb2c4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f16cdadb309 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f16c72cd6da in start_thread (arg=0x7f16a3fff700) at pthread_create.c:456
#4  0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f16ae38f700 (LWP 5212)):
#0  0x00007f16c7d2bd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f16c297d576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16c297d68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16c864e0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f16c85f7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f16c8425f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f16cb2eadf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f16c842ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16c72cd6da in start_thread (arg=0x7f16ae38f700) at pthread_create.c:456
#9  0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f16affff700 (LWP 5183)):
#0  0x00007f16c7d2bd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f16c297d576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16c297d68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16c864e0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f16c85f7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f16c8425f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f16cb2eadf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f16c842ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16c72cd6da in start_thread (arg=0x7f16affff700) at pthread_create.c:456
#9  0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f16ba2c5700 (LWP 5121)):
#0  0x00007f16c7d2bd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f16c297d576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16c297d68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16c864e0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f16c85f7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f16c8425f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f16c8a605d5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f16c842ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16c72cd6da in start_thread (arg=0x7f16ba2c5700) at pthread_create.c:456
#9  0x00007f16c7d37d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f16ce15b280 (LWP 5111)):
[KCrash Handler]
#6  0x00007f16c85c0240 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f16c85c0529 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16c85c8429 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f16c8625789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f16c869c784 in QAbstractItemModel::rowsRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f16c85a162b in QAbstractItemModel::endRemoveRows() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f160ef4c5e8 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#13 0x00007f160ef4f5e9 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#14 0x00007f16c8625789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f16c869c714 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f16c85a0ed3 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f16c85c5c05 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f16c85c5e04 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f16c85c8408 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f16c8625789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f16c869c714 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f16c85a0ed3 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f160ece7d95 in  () at /usr/lib/x86_64-linux-gnu/libKF5ItemModels.so.5
#24 0x00007f160ece9331 in  () at /usr/lib/x86_64-linux-gnu/libKF5ItemModels.so.5
#25 0x00007f16c8625789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f16c869c714 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f16c85a0ed3 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f16c85bb460 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f16c8625789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f16c869c714 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f16c85a0ed3 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f160ef66528 in TaskManager::XWindowTasksModel::Private::removeWindow(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#33 0x00007f16c8625afe in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f16cae08ff2 in KWindowSystem::windowRemoved(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#35 0x00007f16b464c2e6 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#36 0x00007f16cae01342 in NETRootInfo::update(QFlags<NET::Property>, QFlags<NET::Property2>) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#37 0x00007f16cae0236c in NETRootInfo::event(xcb_generic_event_t*, QFlags<NET::Property>*, QFlags<NET::Property2>*) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#38 0x00007f16cae02692 in NETRootInfo::event(xcb_generic_event_t*, unsigned long*, int) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#39 0x00007f16b464ba16 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#40 0x00007f16c85f6d2f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f16b91f1694 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#42 0x00007f16b91f2375 in QXcbConnection::processXcbEvents() () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#43 0x00007f16c8626639 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f16c955b35c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007f16c9562b21 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007f16c85f9c00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f16c85fc39d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007f16c864dc93 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f16c297d377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007f16c297d5e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f16c297d68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f16c864e09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007f16c85f7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#54 0x00007f16c860033c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x000055e65bae00bf in  ()
#56 0x00007f16c7c4f3f1 in __libc_start_main (main=0x55e65badf560, argc=1, argv=0x7fff5735bd28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5735bd18) at ../csu/libc-start.c:291
#57 0x000055e65bae043a in _start ()

Reported using DrKonqi