Created attachment 184582 [details]
New crash information added by DrKonqi

DrKonqi auto-attaching complete backtrace.

I got similar crash on

Operating System: Gentoo Linux 2.17
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.16.4-gentoo-dist (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i7-1185G7 @ 3.00GHz
Memory: 32 GiB of RAM (31.0 GiB usable)
Graphics Processor: Intel® Iris® Xe Graphics

stack trace:
#0  0x00007fd3d38d27dc in ??? () at /usr/lib64/libc.so.6
#1  0x00007fd3d387c2d6 in raise () at /usr/lib64/libc.so.6
#2  0x00007fd3d69c7e92 in KCrash::defaultCrashHandler(int) () at /usr/lib64/libKF6Crash.so.6
#3  0x00007fd3d387c400 in <signal handler called> () at /usr/lib64/libc.so.6
#4  0x00007fd3d2dee5d4 in QJSEngine::handle (this=0x0) at /var/tmp/portage/dev-qt/qtdeclarative-6.9.2/work/qtdeclarative-everywhere-src-6.9.2/src/qml/jsapi/qjsengine.h:320
#5  QQmlListModel::engine (this=0x55e7c430f9d0) at /var/tmp/portage/dev-qt/qtdeclarative-6.9.2/work/qtdeclarative-everywhere-src-6.9.2/src/qmlmodels/qqmllistmodel.cpp:2123
#6  QQmlListModel::data (this=0x55e7c430f9d0, index=0, role=0) at /var/tmp/portage/dev-qt/qtdeclarative-6.9.2/work/qtdeclarative-everywhere-src-6.9.2/src/qmlmodels/qqmllistmodel.cpp:2314
#7  0x00007fd3d2dee951 in QQmlListModel::data (this=<optimized out>, index=<optimized out>, role=<optimized out>) at /usr/include/qt6/QtCore/qabstractitemmodel.h:131
#8  0x00007fd38c76c677 in ModelSource::item (this=0x55e7c4309ed0, index=0) at /var/tmp/portage/kde-frameworks/kquickcharts-6.17.0/work/kquickcharts-6.17.0/src/datasource/ModelSource.cpp:93
#9  0x00007fd38c7681a2 in ChartDataSource::first (this=<optimized out>)
    at /var/tmp/portage/kde-frameworks/kquickcharts-6.17.0/work/kquickcharts-6.17.0/src/datasource/ChartDataSource.cpp:20
#10 0x00007fd38c6ed4ca in LegendModel::getValueForItem (this=this@entry=0x55e7c4324650, item=item@entry=0)
    at /var/tmp/portage/kde-frameworks/kquickcharts-6.17.0/work/kquickcharts-6.17.0/controls/LegendModel.cpp:263
#11 0x00007fd38c6ee254 in LegendModel::update (this=<optimized out>) at /var/tmp/portage/kde-frameworks/kquickcharts-6.17.0/work/kquickcharts-6.17.0/controls/LegendModel.cpp:164
#12 0x00007fd3d409e320 in QObject::event (this=0x55e7c4324650, e=0x55e7c40d2aa0)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/kernel/qobject.cpp:1432
#13 0x00007fd3d656a0e4 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55e7c4324650, e=0x55e7c40d2aa0)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/widgets/kernel/qapplication.cpp:3300
#14 0x00007fd3d411be68 in QCoreApplication::notifyInternal2 (receiver=0x55e7c4324650, event=event@entry=0x55e7c40d2aa0)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/kernel/qcoreapplication.cpp:1106
#15 0x00007fd3d41426c2 in QCoreApplication::sendEvent (receiver=<optimized out>, event=0x55e7c40d2aa0)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/kernel/qcoreapplication.cpp:1546
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55e7ba697af0)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/kernel/qcoreapplication.cpp:1891
#17 0x00007fd3d3eccbb7 in postEventSourceDispatch (s=0x55e7ba69eb10)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/kernel/qeventdispatcher_glib.cpp:246
#18 0x00007fd3d2976b45 in g_main_dispatch (context=context@entry=0x7fd3c8000f00) at ../glib-2.84.3/glib/gmain.c:3398
#19 0x00007fd3d2979e77 in g_main_context_dispatch_unlocked (context=0x7fd3c8000f00) at ../glib-2.84.3/glib/gmain.c:4249
#20 g_main_context_iterate_unlocked (context=context@entry=0x7fd3c8000f00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.84.3/glib/gmain.c:4314
#21 0x00007fd3d297a5e0 in g_main_context_iteration (context=0x7fd3c8000f00, may_block=1) at ../glib-2.84.3/glib/gmain.c:4379
#22 0x00007fd3d3eccc43 in QEventDispatcherGlib::processEvents (this=0x55e7ba69f250, flags=...)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#23 0x00007fd3d414964a in QEventLoop::exec (this=this@entry=0x7fffbe959ab0, flags=..., flags@entry=...)
    at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/global/qflags.h:77
#24 0x00007fd3d41497e3 in QCoreApplication::exec () at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/corelib/global/qflags.h:77
#25 0x00007fd3d457b3b0 in QGuiApplication::exec () at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/gui/kernel/qguiapplication.cpp:1986
#26 0x00007fd3d64f1999 in QApplication::exec () at /var/tmp/portage/dev-qt/qtbase-6.9.2/work/qtbase-everywhere-src-6.9.2/src/widgets/kernel/qapplication.cpp:2567
#27 0x000055e7b2839f1d in main (argc=<optimized out>, argv=<optimized out>) at /var/tmp/portage/kde-plasma/plasma-workspace-6.4.4/work/plasma-workspace-6.4.4/shell/main.cpp:188
`

There are 67 events and multiple user reports in the Sentry report

Some causes from Sentry
- Simply clicking the notification icon in the taskbar
- Clearing notifications
- Clicked notification when file transfer was ongoing (from fuse/sshfs or KDE Connect)
- Clearing the clipboard

I'm not able to reproduce this on git-master by trying those things. I'm raising priority on this, however due to the number of people affected.

*** This bug has been marked as a duplicate of bug 503099 ***