Application: plasmashell (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.17.19-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Open Application Menu -> Development, Scrolled list
- Unusual behavior I noticed:
Plasma crashed, but not always

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f72220cb500 (LWP 1157))]

Thread 6 (Thread 0x7f7172ddf700 (LWP 1365)):
#0  0x00007f722649a3a9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f72264ea95e in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f72264ebe86 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f72264ebfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7229a954c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7229a40dac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7229889f59 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f7174f8e35a in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#8  0x00007f7229894005 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f722921ca9d in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7229578a43 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f718bfff700 (LWP 1335)):
#0  0x00007f7229222afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f721478b17c in  () at /usr/lib/dri/i965_dri.so
#2  0x00007f721478aeb8 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007f722921ca9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7229578a43 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f7216394700 (LWP 1332)):
#0  0x00007f7229222afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f722c398aac in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f722c398ac9 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f722921ca9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7229578a43 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f72175ef700 (LWP 1286)):
#0  0x00007f7229569734 in read () at /usr/lib/libc.so.6
#1  0x00007f722649a781 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f72264eaa50 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f72264ebe86 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f72264ebfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f7229a954c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7229a40dac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f7229889f59 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f722b3af0d9 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f7229894005 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f722921ca9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7229578a43 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f721c9c9700 (LWP 1252)):
#0  0x00007f722649a414 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f72264eb79d in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f72264ebe06 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f72264ebfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7229a954c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7229a40dac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7229889f59 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f722adaaba6 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f7229894005 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f722921ca9d in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7229578a43 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f72220cb500 (LWP 1157)):
[KCrash Handler]
#6  0x00005575ecfad710 in  ()
#7  0x00007f7229a6c5a7 in QMetaObject::activate(QObject*, int, void**) () at /usr/lib/libQt5Core.so.5
#8  0x00007f722b19f461 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f722b3f06de in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /usr/lib/libQt5Qml.so.5
#10 0x00007f722b3f7325 in  () at /usr/lib/libQt5Qml.so.5
#11 0x00007f722b3f7623 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libQt5Qml.so.5
#12 0x00007f7229a6c02d in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#13 0x00007f72299f4f0e in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib/libQt5Core.so.5
#14 0x00007f718005363e in  () at /usr/lib/qt/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#15 0x00007f7180070ce3 in  () at /usr/lib/qt/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#16 0x00007f7180073ffb in  () at /usr/lib/qt/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#17 0x00007f722b2fd788 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib/libQt5Qml.so.5
#18 0x00007f722b3145c3 in  () at /usr/lib/libQt5Qml.so.5
#19 0x00007f722b31172e in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#20 0x00007f722b2c7359 in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#21 0x00007f722b2c7d3f in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#22 0x00007f722b2c7e36 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#23 0x00007f722b2db03c in QV4::Runtime::method_storeProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#24 0x00007f722b2e6c1a in  () at /usr/lib/libQt5Qml.so.5
#25 0x00007f7171f9f48f in  ()
#26 0x00007f72169b0460 in  ()
#27 0x00007f72169b0470 in  ()
#28 0x00005575e83d0610 in  ()
#29 0x0000000000000000 in  ()
[Inferior 1 (process 1157) detached]

Reported using DrKonqi