SUMMARY STEPS TO REPRODUCE 1. Click the touchpad KCM. Only happens sometimes, not yet sure what it depends on. OBSERVED RESULT Crash: Application: Параметры системы (systemsettings5), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". 29 return SYSCALL_CANCEL (poll, fds, nfds, timeout); [Current thread is 1 (Thread 0x7fd9a2a1e940 (LWP 18470))] Thread 6 (Thread 0x7fd969fc3700 (LWP 18478)): #0 0x00007fd99df62c98 in __GI___libc_read (fd=15, buf=0x7fd969fc2a30, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26 #1 0x00007fd996f9dca0 in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fd996f58cb8 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fd996f59150 in ?? () from /usr/lib64/libglib-2.0.so.0 #4 0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #5 0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd964000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424 #6 0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd969fc2c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #7 0x00007fd99e66f04a in QThread::exec (this=this@entry=0x55a9a5ace910) at thread/qthread.cpp:531 #8 0x00007fd99c43cd95 in QQmlThreadPrivate::run (this=0x55a9a5ace910) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:148 #9 0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a5ace910) at thread/qthread_unix.cpp:361 #10 0x00007fd9995e7569 in start_thread (arg=0x7fd969fc3700) at pthread_create.c:465 #11 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7fd9728fd700 (LWP 18477)): #0 0x00007fd996f9efd9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0 #1 0x00007fd996f581d4 in g_main_context_release () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fd996f59166 in ?? () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #4 0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd96c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424 #5 0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd9728fcc50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #6 0x00007fd99e66f04a in QThread::exec (this=this@entry=0x55a9a551b9e0) at thread/qthread.cpp:531 #7 0x00007fd99c43cd95 in QQmlThreadPrivate::run (this=0x55a9a551b9e0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:148 #8 0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a551b9e0) at thread/qthread_unix.cpp:361 #9 0x00007fd9995e7569 in start_thread (arg=0x7fd9728fd700) at pthread_create.c:465 #10 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7fd97a3ff700 (LWP 18474)): #0 0x00007fd9995ed8ad in futex_wait_cancelable (private=, expected=0, futex_word=0x55a9a50e559c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55a9a50e5548, cond=0x55a9a50e5570) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x55a9a50e5570, mutex=0x55a9a50e5548) at pthread_cond_wait.c:655 #3 0x00007fd97b0a592b in ?? () from /usr/lib64/dri/i965_dri.so #4 0x00007fd97b0a5637 in ?? () from /usr/lib64/dri/i965_dri.so #5 0x00007fd9995e7569 in start_thread (arg=0x7fd97a3ff700) at pthread_create.c:465 #6 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7fd982647700 (LWP 18473)): #0 0x00007fd99df6719b in __GI___poll (fds=0x7fd97c002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fd996f591a9 in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd97c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424 #4 0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd982646c40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #5 0x00007fd99e66f04a in QThread::exec (this=) at thread/qthread.cpp:531 #6 0x00007fd99ed16cd5 in ?? () from /usr/lib64/libQt5DBus.so.5 #7 0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x7fd99ef8ed80) at thread/qthread_unix.cpp:361 #8 0x00007fd9995e7569 in start_thread (arg=0x7fd982647700) at pthread_create.c:465 #9 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7fd98e8cd700 (LWP 18472)): #0 0x00007fd99df6719b in __GI___poll (fds=0x7fd98e8ccb78, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fd9991ac307 in ?? () from /usr/lib64/libxcb.so.1 #2 0x00007fd9991adf3a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1 #3 0x00007fd9910953d8 in QXcbEventQueue::run (this=0x55a9a5070380) at qxcbeventqueue.cpp:228 #4 0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a5070380) at thread/qthread_unix.cpp:361 #5 0x00007fd9995e7569 in start_thread (arg=0x7fd98e8cd700) at pthread_create.c:465 #6 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7fd9a2a1e940 (LWP 18470)): [KCrash Handler] #6 0x00007fd960332784 in TouchpadConfigContainer::sizeHint (this=) at /usr/src/debug/plasma5-desktop-5.15.90-lp151.360.1.x86_64/kcms/touchpad/src/kcm/touchpadconfigcontainer.cpp:70 #7 0x00007fd99f925b34 in QWidgetItemV2::updateCacheIfNecessary (this=0x55a9ab7e0e20) at kernel/qlayoutitem.cpp:724 #8 0x00007fd99f925e1d in QWidgetItemV2::maximumSize (this=0x55a9ab7e0e20) at kernel/qlayoutitem.cpp:812 #9 0x00007fd99f91a3a2 in QBoxLayoutPrivate::setupGeom (this=this@entry=0x55a9a8374b90) at kernel/qboxlayout.cpp:289 #10 0x00007fd99f91b046 in QBoxLayoutPrivate::setupGeom (this=) at kernel/qboxlayout.cpp:615 #11 QBoxLayout::sizeHint (this=) at kernel/qboxlayout.cpp:616 #12 0x00007fd99f921be7 in QLayout::totalSizeHint (this=0x55a9ab8b5410) at kernel/qlayout.cpp:719 #13 0x00007fd99fa92002 in QScrollArea::sizeHint (this=) at widgets/qscrollarea.cpp:394 #14 0x00007fd99f927a57 in QStackedLayout::sizeHint (this=) at kernel/qstackedlayout.cpp:444 #15 0x00007fd99f921be7 in QLayout::totalSizeHint (this=0x7fd988007d80) at kernel/qlayout.cpp:719 #16 0x00007fd99f925b34 in QWidgetItemV2::updateCacheIfNecessary (this=0x55a9a557ab30) at kernel/qlayoutitem.cpp:724 #17 0x00007fd99f925dcd in QWidgetItemV2::minimumSize (this=0x55a9a557ab30) at kernel/qlayoutitem.cpp:799 #18 0x00007fd99f91e3a6 in QGridBox::minimumSize (this=0x55a9a5556be0) at kernel/qgridlayout.cpp:74 #19 QGridLayoutPrivate::setupLayoutData (this=this@entry=0x55a9a54db410, hSpacing=hSpacing@entry=4, vSpacing=vSpacing@entry=4) at kernel/qgridlayout.cpp:810 #20 0x00007fd99f91f823 in QGridLayoutPrivate::distribute (this=this@entry=0x55a9a54db410, r=..., hSpacing=4, vSpacing=vSpacing@entry=4) at kernel/qgridlayout.cpp:940 #21 0x00007fd99f920607 in QGridLayout::setGeometry (this=0x55a9a55d63c0, rect=...) at kernel/qgridlayout.cpp:1385 #22 0x00007fd99f921a58 in QLayoutPrivate::doResize (this=this@entry=0x55a9a54db410, r=...) at kernel/qlayout.cpp:592 #23 0x00007fd99f922ae9 in QLayout::activate (this=) at kernel/qlayout.cpp:1117 #24 0x00007fd99f9445df in QWidgetPrivate::setVisible (this=0x55a9a5c92de0, visible=) at kernel/qwidget.cpp:8356 #25 0x00007fd99f928037 in QStackedLayout::setCurrentIndex (this=0x7fd988007d80, index=1) at kernel/qstackedlayout.cpp:321 #26 0x00007fd99f928344 in QStackedLayout::setCurrentWidget (this=0x7fd988007d80, widget=widget@entry=0x55a9ab8e7d00) at kernel/qstackedlayout.cpp:376 #27 0x00007fd99faa8361 in QStackedWidget::setCurrentWidget (this=, widget=0x55a9ab8e7d00) at widgets/qstackedwidget.cpp:248 #28 0x00007fd9a0f4ca60 in KPageViewPrivate::_k_pageSelected (this=0x55a9a5577180, index=..., previous=...) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpageview.cpp:247 #29 0x00007fd99e879445 in QMetaObject::activate (sender=sender@entry=0x55a9a55a6fe0, signalOffset=, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe292259c0) at kernel/qobject.cpp:3795 #30 0x00007fd99e879b17 in QMetaObject::activate (sender=sender@entry=0x55a9a55a6fe0, m=m@entry=0x7fd99ecf6680 , local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe292259c0) at kernel/qobject.cpp:3648 #31 0x00007fd99e7ff4b7 in QItemSelectionModel::selectionChanged (this=this@entry=0x55a9a55a6fe0, _t1=..., _t2=...) at .moc/moc_qitemselectionmodel.cpp:458 #32 0x00007fd99e804020 in QItemSelectionModel::emitSelectionChanged (this=this@entry=0x55a9a55a6fe0, newSelection=..., oldSelection=...) at itemmodels/qitemselectionmodel.cpp:1871 #33 0x00007fd99e80756b in QItemSelectionModel::select (this=0x55a9a55a6fe0, selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1338 #34 0x00007fd99e80151c in QItemSelectionModel::select (this=this@entry=0x55a9a55a6fe0, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1188 #35 0x00007fd99e7ff864 in QItemSelectionModel::setCurrentIndex (this=this@entry=0x55a9a55a6fe0, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1413 #36 0x00007fd9a0f4baea in KPageViewPrivate::updateSelection (this=) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpageview.cpp:111 #37 0x00007fd9a0f4c895 in KPageViewPrivate::_k_modelChanged (this=0x55a9a5577180) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpageview.cpp:218 #38 0x00007fd99e879445 in QMetaObject::activate (sender=sender@entry=0x55a9a557ab90, signalOffset=, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffe29225e20) at kernel/qobject.cpp:3795 #39 0x00007fd99e879b17 in QMetaObject::activate (sender=sender@entry=0x55a9a557ab90, m=m@entry=0x7fd99ecf6580 , local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffe29225e20) at kernel/qobject.cpp:3648 #40 0x00007fd99e7f1066 in QAbstractItemModel::layoutChanged (this=this@entry=0x55a9a557ab90, _t1=..., _t2=, _t2@entry=QAbstractItemModel::NoLayoutChangeHint) at .moc/moc_qabstractitemmodel.cpp:570 #41 0x00007fd9a0f52cb6 in KPageWidgetModel::addPage (this=0x55a9a557ab90, item=item@entry=0x55a9ab8adab0) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpagewidgetmodel.cpp:440 #42 0x00007fd9a0f516ad in KPageWidget::addPage (this=, item=item@entry=0x55a9ab8adab0) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpagewidget.cpp:94 #43 0x00007fd9a2657cc6 in ModuleView::addModule (this=this@entry=0x55a9a5531360, module=0x55a9a55df8c8) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/core/ModuleView.cpp:198 #44 0x00007fd9a265804d in ModuleView::loadModule (this=this@entry=0x55a9a5531360, menuItem=...) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/core/ModuleView.cpp:151 #45 0x00007fd9797dc634 in SidebarMode::setActiveSubCategory (this=this@entry=0x55a9a5554a50, cat=4) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/sidebar/SidebarMode.cpp:462 #46 0x00007fd9797e2397 in SidebarMode::qt_static_metacall (_o=_o@entry=0x55a9a5554a50, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=4, _a=_a@entry=0x7ffe29226150) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/build/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:313 #47 0x00007fd9797e2803 in SidebarMode::qt_metacall (this=0x55a9a5554a50, _c=QMetaObject::WriteProperty, _id=4, _a=0x7ffe29226150) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/build/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:361 #48 0x00007fd99c2ea603 in QV4::QObjectWrapper::setProperty (engine=engine@entry=0x55a9a55ee7d0, object=object@entry=0x55a9a5554a50, property=0x55a9a594ee58, value=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:536 #49 0x00007fd99c2eb13e in QV4::QObjectWrapper::setQmlProperty (engine=0x55a9a55ee7d0, qmlContext=, object=0x55a9a5554a50, name=, revisionMode=QV4::QObjectWrapper::IgnoreRevision, value=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:437 #50 0x00007fd99c2eb2d9 in QV4::QObjectWrapper::virtualPut (m=0x7fd971cbe538, id=..., value=..., receiver=0x7fd971cbe538) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:723 #51 0x00007fd99c2b0269 in QV4::Object::put (receiver=0x7fd971cbe538, v=..., id=..., this=0x7fd971cbe538) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4object_p.h:324 #52 QV4::Object::virtualResolveLookupSetter (object=0x7fd971cbe538, engine=0x55a9a55ee7d0, lookup=0x55a9a594b030, value=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4object.cpp:800 #53 0x00007fd99c302691 in QV4::Moth::VME::interpret (frame=0x7ffe29226500, engine=0x55a9a55ee7d0, code=0x7fd980039509 "\016\002") at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4vme_moth.cpp:630 #54 0x00007fd99c307056 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffe29226500, engine=engine@entry=0x55a9a55ee7d0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4vme_moth.cpp:441 #55 0x00007fd99c29609b in QV4::Function::call (this=this@entry=0x55a9a58bead0, thisObject=thisObject@entry=0x7fd971cbe4e8, argv=argv@entry=0x7fd971cbe500, argc=, context=) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4function.cpp:68 #56 0x00007fd99c409237 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55a9ab935b20, callData=callData@entry=0x7fd971cbe4d0, isUndefined=isUndefined@entry=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmljavascriptexpression.cpp:211 #57 0x00007fd99c3ad529 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x55a9ab935b20, a=a@entry=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlboundsignal.cpp:225 #58 0x00007fd99c3ae8ab in QQmlBoundSignal_callback (e=0x55a9ab935ad0, a=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlboundsignal.cpp:358 #59 0x00007fd99c3e9852 in QQmlNotifier::emitNotify (endpoint=, a=a@entry=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlnotifier.cpp:104 #60 0x00007fd99c38f519 in QQmlData::signalEmitted (object=0x55a9ab930590, index=, a=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlengine.cpp:883 #61 0x00007fd99e878c7f in QMetaObject::activate (sender=0x55a9ab930590, signalOffset=, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3664 #62 0x00007fd99e879b17 in QMetaObject::activate (sender=, m=m@entry=0x7fd98cfef440 , local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3648 #63 0x00007fd98cd8df43 in QQuickAbstractButton::clicked (this=) at .moc/moc_qquickabstractbutton_p.cpp:629 #64 0x00007fd98cd19fa6 in QQuickAbstractButtonPrivate::trigger (this=this@entry=0x55a9ab930650) at qquickabstractbutton.cpp:336 #65 0x00007fd98cd1be48 in QQuickAbstractButtonPrivate::handleRelease (this=0x55a9ab930650, point=...) at qquickabstractbutton.cpp:179 #66 0x00007fd98cd391c5 in QQuickControl::mouseReleaseEvent (this=, event=0x7ffe29228ac0) at qquickcontrol.cpp:2110 #67 0x00007fd99c9d5bd8 in QQuickItem::event (this=0x55a9ab930590, ev=0x7ffe29228ac0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickitem.cpp:8096 #68 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9ab930590, e=e@entry=0x7ffe29228ac0) at kernel/qapplication.cpp:3737 #69 0x00007fd99f90bcf0 in QApplication::notify (this=0x7ffe29229a20, receiver=0x55a9ab930590, e=0x7ffe29228ac0) at kernel/qapplication.cpp:3484 #70 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9ab930590, event=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1060 #71 0x00007fd99e849abe in QCoreApplication::sendEvent (receiver=receiver@entry=0x55a9ab930590, event=event@entry=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1450 #72 0x00007fd99c9ef49d in QQuickWindowPrivate::deliverMouseEvent (this=this@entry=0x55a9a55f2260, pointerEvent=0x55a9ab7a4350) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:1786 #73 0x00007fd99c9f068b in QQuickWindowPrivate::deliverPointerEvent (this=this@entry=0x55a9a55f2260, event=0x55a9ab7a4350) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:2349 #74 0x00007fd99c9f131e in QQuickWindowPrivate::handleMouseEvent (this=0x55a9a55f2260, event=0x7ffe29228ac0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:2212 #75 0x00007fd99f0c5895 in QWindow::event (this=this@entry=0x55a9a5554520, ev=ev@entry=0x7ffe29228ac0) at kernel/qwindow.cpp:2341 #76 0x00007fd99c9f25b5 in QQuickWindow::event (this=0x55a9a5554520, e=0x7ffe29228ac0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:1675 #77 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9a5554520, e=e@entry=0x7ffe29228ac0) at kernel/qapplication.cpp:3737 #78 0x00007fd99f90bcf0 in QApplication::notify (this=0x7ffe29229a20, receiver=0x55a9a5554520, e=0x7ffe29228ac0) at kernel/qapplication.cpp:3484 #79 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9a5554520, event=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1060 #80 0x00007fd99e849abe in QCoreApplication::sendEvent (receiver=, event=event@entry=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1450 #81 0x00007fd99d09a51c in QQuickWidget::mouseReleaseEvent (this=, e=0x7ffe29229110) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quickwidgets/qquickwidget.cpp:1372 #82 0x00007fd99f944b18 in QWidget::event (this=this@entry=0x55a9a55c0d00, event=event@entry=0x7ffe29229110) at kernel/qwidget.cpp:9322 #83 0x00007fd99d09a6fb in QQuickWidget::event (this=0x55a9a55c0d00, e=0x7ffe29229110) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quickwidgets/qquickwidget.cpp:1525 #84 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9a55c0d00, e=e@entry=0x7ffe29229110) at kernel/qapplication.cpp:3737 #85 0x00007fd99f90cbc8 in QApplication::notify (this=, receiver=0x55a9a55c0d00, e=0x7ffe29229110) at kernel/qapplication.cpp:3198 #86 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9a55c0d00, event=0x7ffe29229110) at kernel/qcoreapplication.cpp:1060 #87 0x00007fd99e849ace in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55a9a55c0d00, event=event@entry=0x7ffe29229110) at kernel/qcoreapplication.cpp:1462 #88 0x00007fd99f90b1bf in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55a9a55c0d00, event=event@entry=0x7ffe29229110, alienWidget=0x55a9a55c0d00, nativeWidget=0x55a9a5331100, buttonDown=buttonDown@entry=0x7fd9a00078d0 , lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2684 #89 0x00007fd99f95f9f1 in QWidgetWindow::handleMouseEvent (this=this@entry=0x55a9a5485a70, event=event@entry=0x7ffe292295a0) at kernel/qwidgetwindow.cpp:661 #90 0x00007fd99f96268a in QWidgetWindow::event (this=0x55a9a5485a70, event=0x7ffe292295a0) at kernel/qwidgetwindow.cpp:280 #91 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9a5485a70, e=e@entry=0x7ffe292295a0) at kernel/qapplication.cpp:3737 #92 0x00007fd99f90bcf0 in QApplication::notify (this=0x7ffe29229a20, receiver=0x55a9a5485a70, e=0x7ffe292295a0) at kernel/qapplication.cpp:3484 #93 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9a5485a70, event=0x7ffe292295a0) at kernel/qcoreapplication.cpp:1060 #94 0x00007fd99e849ace in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55a9a5485a70, event=event@entry=0x7ffe292295a0) at kernel/qcoreapplication.cpp:1462 #95 0x00007fd99f0ba43b in QGuiApplicationPrivate::processMouseEvent (e=0x55a9a8b2fe90) at kernel/qguiapplication.cpp:2102 #96 0x00007fd99f0bb5a5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55a9a8b2fe90) at kernel/qguiapplication.cpp:1837 #97 0x00007fd99f093d7b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1151 #98 0x00007fd9910963fa in xcbSourceDispatch (source=) at qxcbeventdispatcher.cpp:105 #99 0x00007fd996f58e87 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0 #100 0x00007fd996f59230 in ?? () from /usr/lib64/libglib-2.0.so.0 #101 0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #102 0x00007fd99e8a697f in QEventDispatcherGlib::processEvents (this=0x55a9a50c35c0, flags=...) at kernel/qeventdispatcher_glib.cpp:422 #103 0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7ffe29229940, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #104 0x00007fd99e850d40 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1363 #105 0x000055a9a37a4d48 in main (argc=, argv=) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/app/main.cpp:71 [Inferior 1 (process 18470) detached] EXPECTED RESULT KCM loads and presents the settings. SOFTWARE/OS VERSIONS KDE Plasma Version: 5.15.90 KDE Frameworks Version: 5.58.0 Qt Version: 5.12.3