https://bugs.kde.org/show_bug.cgi?id=523046
--- Comment #2 from Erik Fehér <[email protected]> --- (In reply to TraceyC from comment #1) > Thanks for the bug report, and the detailed analysis. That's very helpful. > > The backtrace looks a lot like bug 511028, which fixed a similar crash in > 6.7.0. > I'm not able to reproduce this with Plasma built from git-master by changing > a calendar's properties in KOrganizer or deleting an event while the Digital > Clock widget is open > > I'll leave this open so others can try to reproduce Thanks for looking into this, TraceyC. I can offer a precise, simple reproduction. My crash was not caused by deleting a calendar or an event — it happened from a routine settings change: Right-click Digital Clock → Configure Digital Clock... Go to Calendar Events Untick one of the enabled calendars (in my case, a secondary Google calendar under Calendar Events) Click Apply That's it — no dragging, no deleting events, no removing Akonadi resources. Just unchecking a calendar checkbox and applying. Backtrace confirms the same PlasmaTheme::syncWindow() → QObject::connect crash path as 511028, but reached via disabling a calendar plugin rather than dragging the calendar view: AkonadiPimDataSource::onSettingsChanged EventModel::removeCalendar Akonadi::IncidenceChanger::deleteFinished Akonadi::CalendarBasePrivate::slotDeleteFinished Akonadi::CalendarBasePrivate::internalRemove KCalendarCore::Calendar::notifyIncidenceAboutToBeDeleted PimEventsPlugin::calendarIncidenceAboutToBeDeleted CalendarEvents::CalendarEventsPlugin::eventRemoved EventPluginsManager::eventRemoved DaysModel::onEventRemoved QAbstractItemModel::modelReset QQmlDelegateModel::handleModelReset ... [QML delegate incubation rebuild] ... Kirigami::Platform::PlatformTheme::qmlAttachedProperties Plugin::createPlatformTheme PlasmaTheme::PlasmaTheme PlasmaTheme::syncWindow QObject::connectImpl KCrash::defaultCrashHandler AkonadiPimDataSource::onSettingsChanged (which fires when the enabled-calendars config changes) calls EventModel::removeCalendar for the deselected calendar, and that removal cascades through the same delegate-rebuild path that reaches syncWindow(). Given the trigger here is simply unchecking a calendar in settings, this should be trivially reproducible. Given this reaches syncWindow() via a config-change-driven delegate rebuild rather than rapid calendar dragging, the 6.7.0 fix for 511028 likely does not cover this path. Note: GDB 17.2 on this system crashes when processing the core file (both with and without debuginfod), so I'm unable to attach a standard GDB backtrace. The trace above comes from eu-stack plus systemd-coredump's own automated backtrace, both of which agree. Happy to attach the raw core file or .ini crash metadata if useful, or file the GDB issue separately. Separately — unrelated but co-occurring — I saw a wave of SimpleKCM does not have a property called cfg_* and PimEventsConfig does not have a property called cfg_* errors in the minutes before the crash, from configAppearance.qml and PimEventsConfig.qml. Not sure if related, but flagging in case it's a symptom of the same underlying config/plugin state issue. -- You are receiving this mail because: You are watching all bug changes.
