Bug 512426

Summary: Plasmashell crashes consistently when enabling the "Holiday events" calendar plugin in the Digital Clock widget. Reproducible on a clean profile; disabling all calendar plugins prevents the crash.
Product: [Plasma] plasmashell Reporter: Hans Kramer <kramer>
Component: Calendar widgetAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash    
Priority: NOR    
Version First Reported In: 6.5.3   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/132910/events/a629c4784ea640b888baba483bff429a/
Attachments: GDB log

Description Hans Kramer 2025-11-21 09:50:39 UTC
Created attachment 187022 [details]
GDB log

STEPS TO REPRODUCE
1. Start KDE Plasma session (Wayland)
2. Add Digital Clock widget (default)
3. Right-click → Configure Digital Clock
4. Open “Calendar” tab
5. Enable “Holiday events”
6. plasmashell immediately crashes (SIGSEGV)

EXPECTED RESULT
Holiday events should display without crashing.

ACTUAL RESULT
plasmashell segfaults inside CalendarEventsPlugin::dataReady() when holidaysevents plugin loads.

WORKAROUND
Disable calendar plugins entirely:

[Containments][47][Applets][63][Configuration][Appearance]
enabledCalendarPlugins=

ENVIRONMENT
OS: Arch Linux
Plasma: 6.5.3
KDE Frameworks: 6.20.0
Qt: 6.10.1
Session: Wayland
Locale: en_US.UTF-8
Architecture: x86_64

FULL BACKTRACE
(Attached as file: gdb_plasma.txt)
Comment 1 Antonio Rojas 2025-11-21 11:13:57 UTC

*** This bug has been marked as a duplicate of bug 512407 ***