Bug 361826

Application: plasmashell (5.4.3)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-1-amd64 x86_64
Distribution: Debian GNU/Linux testing-updates (sid)

-- Information about the crash:
- What I was doing when the application crashed:
I selected one of 4 minimized instances of Firefox and plasma crashed. After a while it automatically restarted, however.

-- 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 0x7f9519309940 (LWP 9769))]

Thread 7 (Thread 0x7f9504373700 (LWP 9786)):
#0  0x00007f9513a4be4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9517afe382 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f9517affff7 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f950566a789 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f95141307fe in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9513254454 in start_thread (arg=0x7f9504373700) at pthread_create.c:334
#6  0x00007f9513a54ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f9501b2a700 (LWP 9789)):
#0  0x00007f95141e0bc6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f95143654e9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9514365a55 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f9514366e3e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f95107f68bd in g_main_context_prepare (context=context@entry=0x7f94f4000990, priority=priority@entry=0x7f9501b29b30) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3442
#5  0x00007f95107f725b in g_main_context_iterate (context=context@entry=0x7f94f4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#6  0x00007f95107f743c in g_main_context_iteration (context=0x7f94f4000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#7  0x00007f9514367a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f951430ed6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f951412b854 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f95169be105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f95141307fe in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f9513254454 in start_thread (arg=0x7f9501b2a700) at pthread_create.c:334
#13 0x00007f9513a54ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f94f2fe6700 (LWP 9791)):
#0  0x00007f951083ba79 in g_mutex_lock (mutex=mutex@entry=0x7f94ec000990) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1338
#1  0x00007f95107f7428 in g_main_context_iteration (context=0x7f94ec000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3900
#2  0x00007f9514367a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f951430ed6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f951412b854 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f95169be105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f95141307fe in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9513254454 in start_thread (arg=0x7f94f2fe6700) at pthread_create.c:334
#8  0x00007f9513a54ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f94f0ff3700 (LWP 9799)):
#0  0x00007f9513a4be4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f95107f732c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f94e4003070, timeout=<optimized out>, context=0x7f94e4000990) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4135
#2  0x00007f95107f732c in g_main_context_iterate (context=context@entry=0x7f94e4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007f95107f743c in g_main_context_iteration (context=0x7f94e4000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f9514367a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f951430ed6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f951412b854 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f95169be105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f95141307fe in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9513254454 in start_thread (arg=0x7f94f0ff3700) at pthread_create.c:334
#10 0x00007f9513a54ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f94e9b59700 (LWP 9802)):
#0  0x00007f951325a04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9518d6b1c4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f9518d6b209 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f9513254454 in start_thread (arg=0x7f94e9b59700) at pthread_create.c:334
#4  0x00007f9513a54ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f9462db3700 (LWP 9804)):
#0  0x00007f951083ba94 in g_mutex_unlock (mutex=0x7f9454000990) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1350
#1  0x00007f95107f72e6 in g_main_context_iterate (context=context@entry=0x7f9454000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3842
#2  0x00007f95107f743c in g_main_context_iteration (context=0x7f9454000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#3  0x00007f9514367a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f951430ed6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f951412b854 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9517346136 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f95141307fe in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9513254454 in start_thread (arg=0x7f9462db3700) at pthread_create.c:334
#9  0x00007f9513a54ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9519309940 (LWP 9769)):
[KCrash Handler]
#6  0x00007f9516790358 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f95169ff97a in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f9516a2704c in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f9516a27838 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f9514340140 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f95143bc09c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f94537c3884 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#13 0x00007f94537c4b07 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#14 0x00007f951433ff8a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f94537cca28 in TaskManager::AbstractGroupableItem::changed(QFlags<TaskManager::TaskChange>) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#16 0x00007f94537b9f70 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#17 0x00007f951433ff8a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f94537ccc18 in TaskManager::Task::changed(QFlags<TaskManager::TaskChange>) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#19 0x00007f94537abfdb in TaskManager::Task::setActive(bool) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#20 0x00007f94537bfd4c in TaskManager::TaskManager::activeWindowChanged(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#21 0x00007f94537c2037 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.5
#22 0x00007f951433ff8a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f95164d8c62 in KWindowSystem::activeWindowChanged(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#24 0x00007f9501d3e29b in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#25 0x00007f951430df1f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f950566e204 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#27 0x00007f950566efb3 in QXcbConnection::processXcbEvents() () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#28 0x00007f9514340e61 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f9514e13ffc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f9514e194b6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f95143115ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f95143139a6 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f9514367633 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f95107f7137 in g_main_context_dispatch (context=0x7f94fc0016f0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3154
#35 0x00007f95107f7137 in g_main_context_dispatch (context=context@entry=0x7f94fc0016f0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3769
#36 0x00007f95107f7390 in g_main_context_iterate (context=context@entry=0x7f94fc0016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3840
#37 0x00007f95107f743c in g_main_context_iteration (context=0x7f94fc0016f0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#38 0x00007f9514367a3f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f951430ed6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f9514316e0c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x0000000000431b03 in main ()

Reported using DrKonqi