Bug 488003

Application: kate (23.08.5)

Qt Version: 5.15.13
Frameworks Version: 5.115.0
Operating System: Linux 6.8.0-31-generic x86_64
Windowing System: X11
Distribution: Ubuntu 24.04 LTS
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
Sometimes while using kate if I try to use CTRL+TAB to switch between open files the app crashes.
This has happened multiple times now and always after I use CTRL+TAB, but I haven't been able to manually reproduce the crash after the fact. After a restart kate just goes back to working perfectly fine until it doesn't.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Kate (kate), signal: Segmentation fault

[KCrash Handler]
#4  0x000079434d5982f4 in QWidget::windowIcon() const () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5  0x000079433fe1d407 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/ktexteditor/tabswitcherplugin.so
#6  0x000079434d82178f in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x000079434d820dc6 in QStyledItemDelegate::sizeHint(QStyleOptionViewItem const&, QModelIndex const&) const () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x000079434d869206 in QTreeView::indexRowSizeHint(QModelIndex const&) const () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x000079434d86cdac in QTreeViewPrivate::itemHeight(int) const () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x000079434d86e49d in QTreeViewPrivate::updateScrollBars() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x000079434d878747 in QTreeView::updateGeometries() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x000079434d7f2ae4 in QAbstractItemView::doItemsLayout() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x000079434d8769f8 in QTreeView::doItemsLayout() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x000079434d86dea5 in QTreeView::sizeHintForColumn(int) const () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x000079433fe1b85e in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/ktexteditor/tabswitcherplugin.so
#16 0x000079433fe1bbed in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/ktexteditor/tabswitcherplugin.so
#17 0x000079434c712e16 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x000079434d564f94 in QAction::triggered(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x000079434d567eab in QAction::activate(QAction::ActionEvent) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x000079434d568acd in QAction::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x000079434d56bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x000079434c6d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x000079434cb77b3c in QShortcutMap::dispatchEvent(QKeyEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#24 0x000079434cb787b3 in QShortcutMap::tryShortcut(QKeyEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#25 0x000079434cb1b512 in QWindowSystemInterface::handleShortcutEvent(QWindow*, unsigned long, int, QFlags<Qt::KeyboardModifier>, unsigned int, unsigned int, unsigned int, QString const&, bool, unsigned short) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#26 0x000079434cb414d5 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#27 0x00007943475da1f9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so
#28 0x000079434c712e16 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000079434dc3c001 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#30 0x000079434c706343 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x000079434d56bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x000079434c6d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x000079434c6db94b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x000079434c735c0f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x000079434a5145b5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x000079434a573717 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x000079434a513a53 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x000079434c735279 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x000079434c6d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x000079434c6df3e8 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x000056ad7b3dd3d7 in ?? ()
#42 0x000079434bc2a1ca in __libc_start_call_main (main=main@entry=0x56ad7b3dbe50, argc=argc@entry=3, argv=argv@entry=0x7ffd780d9838) at ../sysdeps/nptl/libc_start_call_main.h:58
#43 0x000079434bc2a28b in __libc_start_main_impl (main=0x56ad7b3dbe50, argc=3, argv=0x7ffd780d9838, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd780d9828) at ../csu/libc-start.c:360
#44 0x000056ad7b3df7c5 in ?? ()
[Inferior 1 (process 8565) detached]

The reporter indicates this bug may be a duplicate of or related to bug 472230, bug 486444.

Reported using DrKonqi