Application: plasmashell (5.3.0)

Qt Version: 5.4.1
Operating System: Linux 4.0.4-301.fc22.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
login in/out
- Custom settings of the application:
"compiz conflict"
enable/disable windows effect option missing in kde 5 maybe can solve it
also missing search and launch desktop option and activities 
a very usefull application  launcher

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcd0fe94900 (LWP 2435))]

Thread 4 (Thread 0x7fccf09e9700 (LWP 2437)):
#0  0x00007fcd07d6066d in poll () at /lib64/libc.so.6
#1  0x00007fcd0e150182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007fcd0e151cff in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007fccf25315e9 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007fcd0896aede in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fcd06801555 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fcd07d6bf3d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fccea405700 (LWP 2486)):
#0  0x00007fcd02f1635a in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fcd02f16ceb in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fcd02f16ecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fcd08ba175b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fcd08b47a8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fcd08965ff4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fcd0cbed935 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fcd0896aede in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fcd06801555 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fcd07d6bf3d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fcce1b7e700 (LWP 2494)):
#0  0x00007fcd02f16371 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fcd02f16ceb in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fcd02f16ecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fcd08ba175b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fcd08b47a8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fcd08965ff4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fcd0cbed935 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fcd0896aede in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fcd06801555 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fcd07d6bf3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fcd0fe94900 (LWP 2435)):
[KCrash Handler]
#5  0x00007fcd0ef33185 in QtPrivate::QFunctorSlotObject<void DBusFuture::continueWith<QString, KActivities::Manager::serviceOwnerChanged(QString const&, QString const&, QString const&)::{lambda(QString const&)#3}>(QFuture<QString> const&, KActivities::Manager::serviceOwnerChanged(QString const&, QString const&, QString const&)::{lambda(QString const&)#3}&&)::{lambda()#1}, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () at /lib64/libKF5Activities.so.5
#6  0x00007fcd08b7bb11 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#7  0x00007fcd0a0db7cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#8  0x00007fcd0a0e0e70 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#9  0x00007fcd08b4a24b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#10 0x00007fcd08b4c387 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#11 0x00007fcd08ba1333 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#12 0x00007fcd02f16a8a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#13 0x00007fcd02f16e20 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#14 0x00007fcd02f16ecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#15 0x00007fcd08ba173f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#16 0x00007fcd08b47a8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#17 0x00007fcd08b4f5fc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#18 0x000000000042eb0f in main ()

Reported using DrKonqi