Bug 362557

Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-22-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I Was just apply the changes to use the nvidia graphics card instead of the intel one then The Plasma Chrashed and rebooted

-- 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 0x7f89b6c728c0 (LWP 16096))]

Thread 11 (Thread 0x7f89a2d4d700 (LWP 16098)):
#0  0x00007f89b137de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f89b5442c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f89b54448d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f89a54cd629 in QXcbEventReader::run (this=0x170f9b0) at qxcbconnection.cpp:1253
#4  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x170f9b0) at thread/qthread_unix.cpp:331
#5  0x00007f89b0b606fa in start_thread (arg=0x7f89a2d4d700) at pthread_create.c:333
#6  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f899bfff700 (LWP 16102)):
#0  0x00007f89b137de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f89ae11331c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89ae11342c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f89b1caaa9b in QEventDispatcherGlib::processEvents (this=0x7f89940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f89b1c51dea in QEventLoop::exec (this=this@entry=0x7f899bffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f89b1a6e8a4 in QThread::exec (this=this@entry=0x17dc890) at thread/qthread.cpp:503
#6  0x00007f89b43163c5 in QQmlThreadPrivate::run (this=0x17dc890) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x17dc890) at thread/qthread_unix.cpp:331
#8  0x00007f89b0b606fa in start_thread (arg=0x7f899bfff700) at pthread_create.c:333
#9  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f898f6c3700 (LWP 16118)):
#0  0x00007f89ae157a64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f89ae1132d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89ae11342c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f89b1caaa9b in QEventDispatcherGlib::processEvents (this=0x7f89880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f89b1c51dea in QEventLoop::exec (this=this@entry=0x7f898f6c2ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f89b1a6e8a4 in QThread::exec (this=this@entry=0x1aef210) at thread/qthread.cpp:503
#6  0x00007f89b43163c5 in QQmlThreadPrivate::run (this=0x1aef210) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x1aef210) at thread/qthread_unix.cpp:331
#8  0x00007f89b0b606fa in start_thread (arg=0x7f898f6c3700) at pthread_create.c:333
#9  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f898d818700 (LWP 16159)):
#0  0x00007f89b137de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f89ae11331c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89ae11342c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f89b1caaa9b in QEventDispatcherGlib::processEvents (this=0x7f89800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f89b1c51dea in QEventLoop::exec (this=this@entry=0x7f898d817ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f89b1a6e8a4 in QThread::exec (this=this@entry=0x1d0dbe0) at thread/qthread.cpp:503
#6  0x00007f89b43163c5 in QQmlThreadPrivate::run (this=0x1d0dbe0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x1d0dbe0) at thread/qthread_unix.cpp:331
#8  0x00007f89b0b606fa in start_thread (arg=0x7f898d818700) at pthread_create.c:333
#9  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f8987df7700 (LWP 16217)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f89b66bbbd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f89b66bbc19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f89b0b606fa in start_thread (arg=0x7f8987df7700) at pthread_create.c:333
#4  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f89854ab700 (LWP 16219)):
#0  0x00007f89ae157a49 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f89ae1128b9 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89ae11324b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f89ae11342c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f89b1caaa9b in QEventDispatcherGlib::processEvents (this=0x7f88fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f89b1c51dea in QEventLoop::exec (this=this@entry=0x7f89854aac90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f89b1a6e8a4 in QThread::exec (this=this@entry=0x1ff3240) at thread/qthread.cpp:503
#7  0x00007f89b4c9ced6 in QQuickPixmapReader::run (this=0x1ff3240) at util/qquickpixmapcache.cpp:817
#8  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x1ff3240) at thread/qthread_unix.cpp:331
#9  0x00007f89b0b606fa in start_thread (arg=0x7f89854ab700) at pthread_create.c:333
#10 0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f88fbfff700 (LWP 16248)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f89b1a74aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1efc6a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x16ed2d8, mutex=mutex@entry=0x16ed2d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f89b4d1292e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x16ed2c8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x16ed250) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f89b4d131b3 in QSGRenderThread::run (this=0x16ed250) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x16ed250) at thread/qthread_unix.cpp:331
#7  0x00007f89b0b606fa in start_thread (arg=0x7f88fbfff700) at pthread_create.c:333
#8  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f88e8c24700 (LWP 16436)):
#0  0x00007f89b137de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f89ae11331c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89ae11342c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f89b1caaa9b in QEventDispatcherGlib::processEvents (this=0x7f88e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f89b1c51dea in QEventLoop::exec (this=this@entry=0x7f88e8c23cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f89b1a6e8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f88eb1047d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x3364340) at thread/qthread_unix.cpp:331
#8  0x00007f89b0b606fa in start_thread (arg=0x7f88e8c24700) at pthread_create.c:333
#9  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f88e3192700 (LWP 16440)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f89b1a74aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3287470) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x2525f48, mutex=mutex@entry=0x2525f40, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f89b4d1292e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x2525f38) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x2525ec0) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f89b4d131b3 in QSGRenderThread::run (this=0x2525ec0) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x2525ec0) at thread/qthread_unix.cpp:331
#7  0x00007f89b0b606fa in start_thread (arg=0x7f88e3192700) at pthread_create.c:333
#8  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f88e2291700 (LWP 16441)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f89b1a74aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x282b560) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x361f7e8, mutex=mutex@entry=0x361f7e0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f89b4d1292e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x361f7d8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x361f760) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f89b4d131b3 in QSGRenderThread::run (this=0x361f760) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f89b1a7384e in QThreadPrivate::start (arg=0x361f760) at thread/qthread_unix.cpp:331
#7  0x00007f89b0b606fa in start_thread (arg=0x7f88e2291700) at pthread_create.c:333
#8  0x00007f89b1389b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f89b6c728c0 (LWP 16096)):
[KCrash Handler]
#6  0x00007f89b40e60f8 in VDMModelDelegateDataType::notify (this=<optimized out>, items=..., index=0, count=1, roles=...) at util/qqmladaptormodel.cpp:167
#7  0x00007f89b4357ada in QQmlAdaptorModel::notify (roles=..., count=1, index=0, items=..., this=0x28c44a8) at ../../include/QtQml/5.5.1/QtQml/private/../../../../../src/qml/util/qqmladaptormodel_p.h:118
#8  QQmlDelegateModel::_q_itemsChanged (this=<optimized out>, index=0, count=1, roles=...) at types/qqmldelegatemodel.cpp:1144
#9  0x00007f89b4357c3a in QQmlDelegateModel::_q_dataChanged (this=<optimized out>, begin=..., end=..., roles=...) at types/qqmldelegatemodel.cpp:1546
#10 0x00007f89b437f17c in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0x28c2000, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=12, _a=_a@entry=0x7ffdbcd0ea80) at .moc/moc_qqmldelegatemodel_p.cpp:203
#11 0x00007f89b437f968 in QQmlDelegateModel::qt_metacall (this=0x28c2000, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0x7ffdbcd0ea80) at .moc/moc_qqmldelegatemodel_p.cpp:344
#12 0x00007f89b1c83180 in QMetaObject::activate (sender=0x28967e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdbcd0ea80) at kernel/qobject.cpp:3728
#13 0x00007f89b1c837d7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f89b1e9cec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdbcd0ea80) at kernel/qobject.cpp:3578
#14 0x00007f89b1cff0fc in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:548
#15 0x00007f88f358c7f4 in TaskManager::TasksModelPrivate::itemChanged (this=0x2898350, changes=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/libtaskmanager/tasksmodel.cpp:521
#16 0x00007f88f358da77 in TaskManager::TasksModel::qt_static_metacall (_o=_o@entry=0x28967e0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=9, _a=_a@entry=0x7ffdbcd0ec70) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/obj-x86_64-linux-gnu/libtaskmanager/moc_tasksmodel.cpp:214
#17 0x00007f89b1c82fca in QMetaObject::activate (sender=0x388eb50, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdbcd0ec70) at kernel/qobject.cpp:3713
#18 0x00007f89b1c837d7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f88f37b3900 <TaskManager::AbstractGroupableItem::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdbcd0ec70) at kernel/qobject.cpp:3578
#19 0x00007f88f3595a68 in TaskManager::AbstractGroupableItem::changed (this=<optimized out>, _t1=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/obj-x86_64-linux-gnu/libtaskmanager/moc_abstractgroupableitem.cpp:223
#20 0x00007f88f35824b0 in TaskManager::TaskItemPrivate::filterChange (change=..., this=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/libtaskmanager/taskitem.cpp:73
#21 TaskManager::TaskItem::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/obj-x86_64-linux-gnu/libtaskmanager/moc_taskitem.cpp:147
#22 0x00007f89b1c82fca in QMetaObject::activate (sender=sender@entry=0x2318360, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdbcd0edc0) at kernel/qobject.cpp:3713
#23 0x00007f89b1c837d7 in QMetaObject::activate (sender=sender@entry=0x2318360, m=m@entry=0x7f88f37b3600 <TaskManager::Task::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdbcd0edc0) at kernel/qobject.cpp:3578
#24 0x00007f88f3595c58 in TaskManager::Task::changed (this=this@entry=0x2318360, _t1=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/obj-x86_64-linux-gnu/libtaskmanager/moc_task.cpp:359
#25 0x00007f88f3573d5b in TaskManager::Task::setActive (this=this@entry=0x2318360, a=a@entry=true) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/libtaskmanager/task.cpp:178
#26 0x00007f88f35883e9 in TaskManager::TaskManager::activeWindowChanged (this=0x7f88f37b4f90 <TaskManager::(anonymous namespace)::Q_QGS_privateTaskManagerSelf::innerFunction()::holder>, w=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/libtaskmanager/taskmanager.cpp:412
#27 0x00007f89b1c82e4f in QtPrivate::QSlotObjectBase::call (a=0x7ffdbcd0ef50, r=0x7f88f37b4f90 <TaskManager::(anonymous namespace)::Q_QGS_privateTaskManagerSelf::innerFunction()::holder>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#28 QMetaObject::activate (sender=sender@entry=0x7f89b403cc00 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffdbcd0ef50) at kernel/qobject.cpp:3698
#29 0x00007f89b1c837d7 in QMetaObject::activate (sender=sender@entry=0x7f89b403cc00 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>, m=m@entry=0x7f89b403bba0 <KWindowSystem::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffdbcd0ef50) at kernel/qobject.cpp:3578
#30 0x00007f89b3e2d682 in KWindowSystem::activeWindowChanged (this=this@entry=0x7f89b403cc00 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>, _t1=2097156) at moc_kwindowsystem.cpp:303
#31 0x00007f89a033425b in NETEventFilter::nativeEventFilter (this=0x220cd70, ev=0x7f899c003bd0) at ../../../../src/platforms/xcb/kwindowsystem.cpp:208
#32 0x00007f89b1c50f9f in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x7f899c003bd0, result=result@entry=0x7ffdbcd0f088) at kernel/qabstracteventdispatcher.cpp:460
#33 0x00007f89a54cf0a4 in QXcbConnection::handleXcbEvent (this=this@entry=0x1700080, event=event@entry=0x7f899c003bd0) at qxcbconnection.cpp:1044
#34 0x00007f89a54cfe53 in QXcbConnection::processXcbEvents (this=0x1700080) at qxcbconnection.cpp:1532
#35 0x00007f89b1c83ea1 in QObject::event (this=0x1700080, e=<optimized out>) at kernel/qobject.cpp:1239
#36 0x00007f89b275705c in QApplicationPrivate::notify_helper (this=this@entry=0x16f3ca0, receiver=receiver@entry=0x1700080, e=e@entry=0x7f899c003d30) at kernel/qapplication.cpp:3716
#37 0x00007f89b275c516 in QApplication::notify (this=0x7ffdbcd0f810, receiver=0x1700080, e=0x7f899c003d30) at kernel/qapplication.cpp:3499
#38 0x00007f89b1c5462b in QCoreApplication::notifyInternal (this=0x7ffdbcd0f810, receiver=0x1700080, event=event@entry=0x7f899c003d30) at kernel/qcoreapplication.cpp:965
#39 0x00007f89b1c56a26 in QCoreApplication::sendEvent (event=0x7f899c003d30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x16e9c00) at kernel/qcoreapplication.cpp:1593
#41 0x00007f89b1c56f08 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#42 0x00007f89b1caa673 in postEventSourceDispatch (s=0x17408b0) at kernel/qeventdispatcher_glib.cpp:271
#43 0x00007f89ae113127 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f89ae113380 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f89ae11342c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f89b1caaa7f in QEventDispatcherGlib::processEvents (this=0x1735520, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#47 0x00007f89b1c51dea in QEventLoop::exec (this=this@entry=0x7ffdbcd0f6b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#48 0x00007f89b1c59e8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#49 0x00007f89b1f8dc3c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#50 0x00007f89b2753495 in QApplication::exec () at kernel/qapplication.cpp:2976
#51 0x0000000000432d4a in main (argc=2, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Possible duplicates by query: bug 362469, bug 362159, bug 362054, bug 361749, bug 361649.

Reported using DrKonqi