Thread 1 (Thread 0x7f2fb87fa780 (LWP 16068)):
[KCrash Handler]
#6 0x00007f2f8f8e169f in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#7 0x00007f2f9105719c in KDecoration2::DecorationButtonGroup::DecorationButtonGroup(KDecoration2::DecorationButtonGroup::Position, KDecoration2::Decoration*, std::function<KDecoration2::DecorationButton* (KDecoration2::DecorationButtonType, KDecoration2::Decoration*, QObject*)>) () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8 0x00007f2f8f8dfaf0 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#9 0x00007f2f8f8e138c in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#10 0x00007f2f8fb3a489 in KDecoration2::Preview::PreviewButtonItem::createButton (this=0x2e50060) at ../../../../kcmkwin/kwindecoration/declarative-plugin/previewbutton.cpp:115
#11 0x00007f2fb4035e32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f2fb3fc2cda in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f2fb3fc358f in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f2fb4087fc7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f2fb4088285 in QQmlDelegateModel::object(int, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f2fb43f0a5f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f2fb43b0470 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f2fb43ef479 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f2fb43f4de0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f2fb4035e32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007f2fb3fbe89e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007f2fb3fbe967 in QQmlComponentPrivate::completeCreate() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007f2fb3fbe7d0 in QQmlComponent::create(QQmlContext*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f2fb43cb83d in QQuickView::continueExecute() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007f2fb43cbf7d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f2f91273837 in KDecoration2::Configuration::ConfigurationModule::ConfigurationModule (this=this@entry=0x3272680, parent=parent@entry=0x34789f0, args=...) at ../../../kcmkwin/kwindecoration/kcm.cpp:98
#27 0x00007f2f912788bb in KPluginFactory::createInstance<KDecoration2::Configuration::ConfigurationModule, QWidget> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/KF5/KCoreAddons/kpluginfactory.h:477
#28 0x00007f2fb5aa2fa8 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#29 0x00007f2fb837cb08 in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#30 0x00007f2fb83837df in ?? () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#31 0x00007f2fb83843d5 in KCModuleProxy::realModule() const () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#32 0x00007f2fb8384923 in KCModuleProxy::showEvent(QShowEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#33 0x00007f2fb6cee168 in QWidget::event (this=0x34789f0, event=0x7fff1d4a6550) at kernel/qwidget.cpp:9023
#34 0x00007f2fb6caaadc in QApplicationPrivate::notify_helper (this=this@entry=0xb1a740, receiver=receiver@entry=0x34789f0, e=e@entry=0x7fff1d4a6550) at kernel/qapplication.cpp:3720
#35 0x00007f2fb6caffb0 in QApplication::notify (this=0x7fff1d4a7d10, receiver=0x34789f0, e=0x7fff1d4a6550) at kernel/qapplication.cpp:3503
#36 0x00007f2fb581d3ab in QCoreApplication::notifyInternal (this=0x7fff1d4a7d10, receiver=receiver@entry=0x34789f0, event=event@entry=0x7fff1d4a6550) at kernel/qcoreapplication.cpp:935
#37 0x00007f2fb6ceb7cb in sendEvent (event=0x7fff1d4a6550, receiver=0x34789f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#38 QWidgetPrivate::show_helper (this=0x3328bd0) at kernel/qwidget.cpp:7801
#39 0x00007f2fb6ceb5c6 in QWidgetPrivate::show_recursive (this=<optimized out>) at kernel/qwidget.cpp:7672
#40 0x00007f2fb6ceb6ea in QWidgetPrivate::showChildren (this=this@entry=0x3470300, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8168
#41 0x00007f2fb6ceb792 in QWidgetPrivate::show_helper (this=this@entry=0x3470300) at kernel/qwidget.cpp:7748
#42 0x00007f2fb6cedb45 in QWidget::setVisible (this=0x19d90a0, visible=<optimized out>) at kernel/qwidget.cpp:8087
#43 0x00007f2fb6ceb700 in QWidgetPrivate::showChildren (this=this@entry=0x32bc350, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8170
#44 0x00007f2fb6ceb792 in QWidgetPrivate::show_helper (this=this@entry=0x32bc350) at kernel/qwidget.cpp:7748
#45 0x00007f2fb6cedb45 in QWidget::setVisible (this=0x334a5a0, visible=<optimized out>) at kernel/qwidget.cpp:8087
#46 0x00007f2fb6cd0cd1 in QStackedLayout::setCurrentIndex (this=0x174a7a0, index=2) at kernel/qstackedlayout.cpp:324
#47 0x00007f2fb6cd0f44 in QStackedLayout::setCurrentWidget (this=0x174a7a0, widget=widget@entry=0x334a5a0) at kernel/qstackedlayout.cpp:379
#48 0x00007f2fb6e49d51 in QStackedWidget::setCurrentWidget (this=<optimized out>, widget=0x334a5a0) at widgets/qstackedwidget.cpp:242
#49 0x00007f2fb72d727f in ?? () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#50 0x00007f2fb584e12e in QMetaObject::activate (sender=sender@entry=0x2e03db0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff1d4a6ad0) at kernel/qobject.cpp:3717
#51 0x00007f2fb584e7a7 in QMetaObject::activate (sender=sender@entry=0x2e03db0, m=m@entry=0x7f2fb5a57560 <QItemSelectionModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff1d4a6ad0) at kernel/qobject.cpp:3582
#52 0x00007f2fb57cd627 in QItemSelectionModel::selectionChanged (this=this@entry=0x2e03db0, _t1=..., _t2=...) at .moc/moc_qitemselectionmodel.cpp:280
#53 0x00007f2fb57d41e0 in QItemSelectionModel::emitSelectionChanged (this=this@entry=0x2e03db0, newSelection=..., oldSelection=...) at itemmodels/qitemselectionmodel.cpp:1752
#54 0x00007f2fb57d5145 in QItemSelectionModel::select (this=0x2e03db0, selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1252
#55 0x00007f2fb6f35741 in QListView::setSelection (this=<optimized out>, rect=..., command=...) at itemviews/qlistview.cpp:1352
#56 0x00007f2fb6f1262c in QAbstractItemView::mousePressEvent (this=0xc8b5b0, event=<optimized out>) at itemviews/qabstractitemview.cpp:1735
#57 0x00007f2fb6cee81f in QWidget::event (this=this@entry=0xc8b5b0, event=event@entry=0x7fff1d4a7440) at kernel/qwidget.cpp:8653
#58 0x00007f2fb6dec73e in QFrame::event (this=0xc8b5b0, e=0x7fff1d4a7440) at widgets/qframe.cpp:526
#59 0x00007f2fb6f19ddb in QAbstractItemView::viewportEvent (this=0xc8b5b0, event=0x7fff1d4a7440) at itemviews/qabstractitemview.cpp:1689
#60 0x00007f2fb581d194 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0xb1a740, receiver=receiver@entry=0x2e608a0, event=event@entry=0x7fff1d4a7440) at kernel/qcoreapplication.cpp:1031
#61 0x00007f2fb6caaabc in QApplicationPrivate::notify_helper (this=this@entry=0xb1a740, receiver=receiver@entry=0x2e608a0, e=e@entry=0x7fff1d4a7440) at kernel/qapplication.cpp:3716
#62 0x00007f2fb6cb089b in QApplication::notify (this=<optimized out>, receiver=0x2e608a0, e=0x7fff1d4a7440) at kernel/qapplication.cpp:3280
#63 0x00007f2fb581d3ab in QCoreApplication::notifyInternal (this=0x7fff1d4a7d10, receiver=receiver@entry=0x2e608a0, event=event@entry=0x7fff1d4a7440) at kernel/qcoreapplication.cpp:935
#64 0x00007f2fb6caf38a in sendSpontaneousEvent (event=0x7fff1d4a7440, receiver=0x2e608a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#65 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x2e608a0, event=event@entry=0x7fff1d4a7440, alienWidget=alienWidget@entry=0x2e608a0, nativeWidget=0xca8b50, buttonDown=buttonDown@entry=0x7f2fb71f4a10 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#66 0x00007f2fb6d06a30 in QWidgetWindow::handleMouseEvent (this=this@entry=0x17426a0, event=event@entry=0x7fff1d4a7850) at kernel/qwidgetwindow.cpp:543
#67 0x00007f2fb6d08ba3 in QWidgetWindow::event (this=0x17426a0, event=0x7fff1d4a7850) at kernel/qwidgetwindow.cpp:210
#68 0x00007f2fb6caaadc in QApplicationPrivate::notify_helper (this=this@entry=0xb1a740, receiver=receiver@entry=0x17426a0, e=e@entry=0x7fff1d4a7850) at kernel/qapplication.cpp:3720
#69 0x00007f2fb6caffb0 in QApplication::notify (this=0x7fff1d4a7d10, receiver=0x17426a0, e=0x7fff1d4a7850) at kernel/qapplication.cpp:3503
#70 0x00007f2fb581d3ab in QCoreApplication::notifyInternal (this=0x7fff1d4a7d10, receiver=receiver@entry=0x17426a0, event=event@entry=0x7fff1d4a7850) at kernel/qcoreapplication.cpp:935
#71 0x00007f2fb66ede83 in sendSpontaneousEvent (event=0x7fff1d4a7850, receiver=0x17426a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#72 QGuiApplicationPrivate::processMouseEvent (e=0x34315d0) at kernel/qguiapplication.cpp:1769
#73 0x00007f2fb66efa75 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x34315d0) at kernel/qguiapplication.cpp:1573
#74 0x00007f2fb66d424f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#75 0x00007f2faa0ca320 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#76 0x00007f2fb1d13c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#77 0x00007f2fb1d13f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#78 0x00007f2fb1d13fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#79 0x00007f2fb5876347 in QEventDispatcherGlib::processEvents (this=0xb66200, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#80 0x00007f2fb581ab62 in QEventLoop::exec (this=this@entry=0x7fff1d4a7bf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#81 0x00007f2fb58227ac in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#82 0x000000000040f09b in main ()