Application: dolphin (20.12.3)
 (Compiled from sources)
Qt Version: 5.15.2
Frameworks Version: 5.82.0
Operating System: Linux 5.10.27-gentoo-x86_64 x86_64
Windowing System: X11
Drkonqi Version: 5.21.5
Distribution: Gentoo/Linux

-- Information about the crash:
- I was in the tree view on ~/.local/share/akonadi ... tried to collapse a directory listing by clicking the down arrow icon, and it died.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f739b2a14bc in KFileItem::~KFileItem() () from /usr/lib64/libKF5KIOCore.so.5
#5  0x00007f739b89676d in KFileItemModel::removeItems(KItemRangeList const&, KFileItemModel::RemoveItemsBehavior) () from /usr/lib64/libdolphinprivate.so.5
#6  0x00007f739b8a224a in KFileItemModel::setExpanded(int, bool) () from /usr/lib64/libdolphinprivate.so.5
#7  0x00007f739b8b3e41 in KItemListController::onRelease(QPointF const&, QFlags<Qt::KeyboardModifier>, QFlags<Qt::MouseButton>, bool) () from /usr/lib64/libdolphinprivate.so.5
#8  0x00007f739b8b3fe5 in KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent*, QTransform const&) () from /usr/lib64/libdolphinprivate.so.5
#9  0x00007f739b8b6a59 in KItemListController::processEvent(QEvent*, QTransform const&) () from /usr/lib64/libdolphinprivate.so.5
#10 0x00007f739b8c695d in KItemListView::event(QEvent*) () from /usr/lib64/libdolphinprivate.so.5
#11 0x00007f739a4d1d8f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#12 0x00007f739a4daa40 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#13 0x00007f7399a52bc8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#14 0x00007f739a7f9e83 in ?? () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f739a7fa2ae in ?? () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f739a7ff2ac in QGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5
#17 0x00007f739a80c708 in QGraphicsScene::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#18 0x00007f739a4d1d8f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f739a4daa40 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007f7399a52bc8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#21 0x00007f739a829566 in QGraphicsView::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007f739a513d38 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f739a5c1d8e in QFrame::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#24 0x00007f739a82a32c in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#25 0x00007f7399a52985 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#26 0x00007f739a4d1d7e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007f739a4dad03 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007f7399a52bc8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f739a4d9eb4 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /usr/lib64/libQt5Widgets.so.5
#30 0x00007f739a52e73c in ?? () from /usr/lib64/libQt5Widgets.so.5
#31 0x00007f739a53196c in ?? () from /usr/lib64/libQt5Widgets.so.5
#32 0x00007f739a4d1d8f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#33 0x00007f739a4daa40 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#34 0x00007f7399a52bc8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#35 0x00007f7399f018b3 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib64/libQt5Gui.so.5
#36 0x00007f7399ee237b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5
#37 0x00007f73950d53ba in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#38 0x00007f7397a95acb in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#39 0x00007f7397a95d78 in ?? () from /usr/lib64/libglib-2.0.so.0
#40 0x00007f7397a95e2f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#41 0x00007f7399a9da1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#42 0x00007f7399a51673 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#43 0x00007f7399a59010 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#44 0x00007f739bb6014d in kdemain () from /usr/lib64/libkdeinit5_dolphin.so
#45 0x00007f739b97c7fd in __libc_start_main () from /lib64/libc.so.6
#46 0x000055eb3d26b08a in _start ()
[Inferior 1 (process 5274) detached]

Reported using DrKonqi