https://bugs.kde.org/show_bug.cgi?id=463222

            Bug ID: 463222
           Summary: kalendarac crashes when restarting Akonadi
    Classification: Applications
           Product: kalendar
           Version: unspecified
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: claudio.cam...@kde.org
          Reporter: bugs.kde....@e3q.eu
                CC: c...@carlschwan.eu
  Target Milestone: ---

Application: kalendarac (5.21.3)
 (Compiled from sources)
Qt Version: 5.15.7
Frameworks Version: 5.99.0
Operating System: Linux 5.15.80-gentoo-a x86_64
Windowing System: X11
Distribution: "Gentoo Linux"
DrKonqi: 5.25.5 [KCrashBackend]

-- Information about the crash:
Akonadi sometimes needs to be restarted (e.g., due to some resource being
stuck). I do this using the menu option in akonadiconsole. Often when I do so,
kalendarac crashes.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Herinneringen (kalendarac), signal: Aborted

[KCrash Handler]
#4  0x00007c35d037ff9c in ?? () from /lib64/libc.so.6
#5  0x00007c35d0332b62 in raise () from /lib64/libc.so.6
#6  0x00007c35d031d471 in abort () from /lib64/libc.so.6
#7  0x00007c35d078dcf7 in qt_message_fatal (message=<synthetic pointer>...,
context=...) at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/src/corelib/global/qlogging.cpp:1914
#8  QMessageLogger::fatal (this=this@entry=0x7fff55921100,
msg=msg@entry=0x7c35cf897198 "QWidget: Cannot create a QWidget without
QApplication") at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/src/corelib/global/qlogging.cpp:893
#9  0x00007c35cf4c0d32 in QWidgetPrivate::init (this=0x7c35c105a970,
parentWidget=0x0, f=...) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.7/work/qtbase-everywhere-src-5.15.7/src/widgets/kernel/qwidget.cpp:983
#10 0x00007c35cf6e05af in QDialog::QDialog (this=0x5d2c4a3c77f0, parent=0x0,
f=...) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.7/work/qtbase-everywhere-src-5.15.7/src/widgets/dialogs/qdialog.cpp:400
#11 0x00007c35cfb630be in KMessageBox::sorry(QWidget*, QString const&, QString
const&, QFlags<KMessageBox::Option>) () from
/usr/lib64/libKF5WidgetsAddons.so.5
#12 0x00007c35d190ea1c in
Akonadi::IncidenceChangerPrivate::handleDeleteJobResult (this=0x5d2c46f20ec0,
job=<optimized out>) at
/var/tmp/portage/kde-apps/akonadi-calendar-22.08.3/work/akonadi-calendar-22.08.3/src/incidencechanger.cpp:330
#13 0x00007c35d09a9f46 in QObject::event (this=0x5d2c46f20ec0,
e=0x5d2c4bd612d0) at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/src/corelib/kernel/qobject.cpp:1347
#14 0x00007c35d097e318 in QCoreApplication::notifyInternal2
(receiver=0x5d2c46f20ec0, event=0x5d2c4bd612d0) at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/src/corelib/kernel/qcoreapplication.cpp:1064
#15 0x00007c35d09819a5 in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x5d2c46dc33e0) at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/src/corelib/kernel/qcoreapplication.cpp:1821
#16 0x00007c35d09d1013 in postEventSourceDispatch (s=0x5d2c46f082d0) at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/src/corelib/kernel/qeventdispatcher_glib.cpp:277
#17 0x00007c35ce31e15b in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#18 0x00007c35ce31e418 in ?? () from /usr/lib64/libglib-2.0.so.0
#19 0x00007c35ce31e4cf in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#20 0x00007c35d09d0aa4 in QEventDispatcherGlib::processEvents
(this=0x5d2c46f079e0, flags=...) at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#21 0x00007c35d097ccfb in QEventLoop::exec (this=this@entry=0x7fff55921640,
flags=..., flags@entry=...) at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/include/QtCore/../../src/corelib/global/qflags.h:69
#22 0x00007c35d098535d in QCoreApplication::exec () at
/var/tmp/portage/dev-qt/qtcore-5.15.7/work/qtbase-everywhere-src-5.15.7/include/QtCore/../../src/corelib/global/qflags.h:121
#23 0x00007c35d0dff19c in QGuiApplication::exec () at
/var/tmp/portage/dev-qt/qtgui-5.15.7/work/qtbase-everywhere-src-5.15.7/src/gui/kernel/qguiapplication.cpp:1870
#24 0x00005d2c45285178 in main (argc=<optimized out>, argv=<optimized out>) at
/var/tmp/portage/kde-apps/akonadi-calendar-22.08.3/work/akonadi-calendar-22.08.3/reminder-daemon/kalendaracmain.cpp:54
[Inferior 1 (process 1263492) detached]

The reporter indicates this bug may be a duplicate of or related to bug 456216.

Reported using DrKonqi

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