Application: plasmashell (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-38-generic i686
Distribution: Ubuntu 15.10

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

Randomly plasma crashes.
Last time it happened when I closed two windows that was open: gedit and kate.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1c0d780 (LWP 9598))]

Thread 6 (Thread 0xb0251b40 (LWP 9604)):
#0  0xb776bbe8 in __kernel_vsyscall ()
#1  0xb4e318bb in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb4501980 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb44f2f1c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb44f3054 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb533d7e4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb52e02b3 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb52e0702 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#8  0xb510923d in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#9  0xb68f63bf in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#10 0xb510e65b in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#11 0xb4ce91aa in start_thread (arg=0xb0251b40) at pthread_create.c:333
#12 0xb4e3c4de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 5 (Thread 0xad07db40 (LWP 9605)):
#0  0xb776bbe8 in __kernel_vsyscall ()
#1  0xb4e318bb in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb4501980 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb44f2f1c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb44f3054 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb533d7e4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb52e02b3 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb52e0702 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#8  0xb510923d in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#9  0xb68f63bf in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#10 0xb510e65b in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#11 0xb4ce91aa in start_thread (arg=0xad07db40) at pthread_create.c:333
#12 0xb4e3c4de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 4 (Thread 0xab3b6b40 (LWP 9609)):
#0  0xb45393d8 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb44f2db0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb44f3054 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb533d7e4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#4  0xb52e02b3 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#5  0xb52e0702 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb510923d in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb68f63bf in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#8  0xb510e65b in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#9  0xb4ce91aa in start_thread (arg=0xab3b6b40) at pthread_create.c:333
#10 0xb4e3c4de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 3 (Thread 0xaa1ffb40 (LWP 9610)):
#0  0xb776bbe8 in __kernel_vsyscall ()
#1  0xb4cee25c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb4e491f6 in __pthread_cond_wait (cond=0xb76d68d0, mutex=0xb76d68b8) at forward.c:149
#3  0xb759e2fc in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#4  0xb759e33c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#5  0xb4ce91aa in start_thread (arg=0xaa1ffb40) at pthread_create.c:333
#6  0xb4e3c4de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 2 (Thread 0xa172db40 (LWP 9626)):
#0  0xb776bbe8 in __kernel_vsyscall ()
#1  0xb4e318bb in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb4501980 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb44f2f1c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb44f3054 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb533d7e4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb52e02b3 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb52e0702 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#8  0xb510923d in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#9  0xa1c0fb40 in KCupsConnection::run() () from /usr/lib/i386-linux-gnu/libkcupslib.so
#10 0xb510e65b in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#11 0xb4ce91aa in start_thread (arg=0xa172db40) at pthread_create.c:333
#12 0xb4e3c4de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 1 (Thread 0xb1c0d780 (LWP 9598)):
[KCrash Handler]
#7  0xb66cb546 in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#8  0xb693d064 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#9  0xb693d1c0 in QQmlDelegateModel::_q_dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#10 0xb696576f in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#11 0xb6965bcf in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#12 0xb52eac02 in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#13 0xb5315e57 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#14 0xb53165dd in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#15 0xb53900a1 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#16 0xa4fcd0c1 in TaskManager::TasksModelPrivate::itemChanged (this=0x96d7f00, changes=...) at ../../libtaskmanager/tasksmodel.cpp:521
#17 0xa4fce338 in TaskManager::TasksModel::qt_static_metacall (_o=0x96d26c0, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbf9e3ac4) at ./moc_tasksmodel.cpp:213
#18 0xb53160e1 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#19 0xb53165dd in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#20 0xa4fd64f1 in TaskManager::AbstractGroupableItem::changed (this=0xa248640, _t1=...) at moc_abstractgroupableitem.cpp:222
#21 0xa4fc3319 in TaskManager::TaskItemPrivate::filterChange (change=..., this=<optimized out>) at ../../libtaskmanager/taskitem.cpp:73
#22 TaskManager::TaskItem::qt_static_metacall (_o=0xa248640, _c=QMetaObject::InvokeMetaMethod, _id=16, _a=0xbf9e3be4) at ./moc_taskitem.cpp:146
#23 0xb53160e1 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#24 0xb53165dd in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#25 0xa4fd6731 in TaskManager::Task::changed (this=0xa4f8400, _t1=...) at moc_task.cpp:354
#26 0xa4fb437e in TaskManager::Task::setActive (this=0xa4f8400, a=true) at ../../libtaskmanager/task.cpp:178
#27 0xa4fc91f3 in TaskManager::TaskManager::activeWindowChanged (this=0xa50047e0 <TaskManager::(anonymous namespace)::Q_QGS_privateTaskManagerSelf::innerFunction()::holder>, w=111149061) at ../../libtaskmanager/taskmanager.cpp:412
#28 0xa4fcb5ca in TaskManager::TaskManager::qt_static_metacall (_o=0xa50047e0 <TaskManager::(anonymous namespace)::Q_QGS_privateTaskManagerSelf::innerFunction()::holder>, _c=QMetaObject::InvokeMetaMethod, _id=10, _a=0xbf9e3dd4) at ./moc_taskmanager.cpp:175
#29 0xb53160e1 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#30 0xb53165dd in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#31 0xb663a671 in KWindowSystem::activeWindowChanged (this=0xb6652620 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>, _t1=111149061) at moc_kwindowsystem.cpp:302
#32 0xb025e151 in NETEventFilter::nativeEventFilter (this=0x94ae5e8, ev=0xb0f14548) at ../../../../src/platforms/xcb/kwindowsystem.cpp:208
#33 0xb52df76f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#34 0xb1960c54 in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/platforms/libqxcb.so
#35 0xb1961b0e in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/platforms/libqxcb.so
#36 0xb198dc01 in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/platforms/libqxcb.so
#37 0xb5312f50 in QMetaCallEvent::placeMetaCall(QObject*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#38 0xb5316d13 in QObject::event(QEvent*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#39 0xb1962049 in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/platforms/libqxcb.so
#40 0xb5c4bdaa in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5
#41 0xb5c5167f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5
#42 0xb52e30ff in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#43 0xb52e551d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#44 0xb52e5a57 in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#45 0xb533d3d3 in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#46 0xb44f2ce9 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#47 0xb44f2f89 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#48 0xb44f3054 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#49 0xb533d7c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#50 0xb198ebc1 in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/platforms/libqxcb.so
#51 0xb52e02b3 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#52 0xb52e0702 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#53 0xb52e87e5 in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#54 0xb55eecf1 in QGuiApplication::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Gui.so.5
#55 0xb5c47cb4 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5
#56 0x0807206c in main (argc=4, argv=0xbf9e4774) at ../../shell/main.cpp:176

Possible duplicates by query: bug 363964, bug 363835, bug 363706, bug 363583, bug 363304.

Reported using DrKonqi