I know the stack trace is not a complete but it does not look so bad to me. It does not crash when akonadi is started at login. (I don't know in which order they come up.) Application: korgac (4.81 beta1) Qt Version: 5.5.0 Operating System: Linux 4.1.5-1-ARCH x86_64 Distribution (Platform): Archlinux Packages -- Information about the crash: <In detail, tell us what you were doing when the application crashed.> The crash can be reproduced every time. -- Backtrace: Application: KOrganizer Reminder Daemon (korgac), signal: Segmentation fault Using host libthread_db library "/usr/lib/libthread_db.so.1". [Current thread is 1 (Thread 0x7ff1cf7ec840 (LWP 1431))] Thread 2 (Thread 0x7ff1b34ad700 (LWP 1435)): #0 0x00007ff1c93e918d in poll () from /usr/lib/libc.so.6 #1 0x00007ff1c26229f2 in ?? () from /usr/lib/libxcb.so.1 #2 0x00007ff1c262456f in xcb_wait_for_event () from /usr/lib/libxcb.so.1 #3 0x00007ff1b45a3ca9 in ?? () from /usr/lib/libQt5XcbQpa.so.5 #4 0x00007ff1c9cffa9e in ?? () from /usr/lib/libQt5Core.so.5 #5 0x00007ff1c1ff84a4 in start_thread () from /usr/lib/libpthread.so.0 #6 0x00007ff1c93f212d in clone () from /usr/lib/libc.so.6 Thread 1 (Thread 0x7ff1cf7ec840 (LWP 1431)): [KCrash Handler] #5 0x00007ff1ce21fe25 in KCalCore::Calendar::setupRelations(QSharedPointer<KCalCore::Incidence> const&) () from /usr/lib/libKF5CalendarCore.so.5 #6 0x00007ff1ce26bb7c in KCalCore::MemoryCalendar::addIncidence(QSharedPointer<KCalCore::Incidence> const&) () from /usr/lib/libKF5CalendarCore.so.5 #7 0x00007ff1cee5b034 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #8 0x00007ff1cee699e0 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #9 0x00007ff1cee6c384 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #10 0x00007ff1cee6c9e5 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #11 0x00007ff1c9f0efea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #12 0x00007ff1c9f8b804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #13 0x00007ff1c9e88d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #14 0x00007ff1c9eabbb3 in ?? () from /usr/lib/libQt5Core.so.5 #15 0x00007ff1c9eae424 in ?? () from /usr/lib/libQt5Core.so.5 #16 0x00007ff1c9eb1e09 in ?? () from /usr/lib/libQt5Core.so.5 #17 0x00007ff1c9f0efea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #18 0x00007ff1c9f8b804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #19 0x00007ff1c9e88d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #20 0x00007ff1c9eabbb3 in ?? () from /usr/lib/libQt5Core.so.5 #21 0x00007ff1c9eae424 in ?? () from /usr/lib/libQt5Core.so.5 #22 0x00007ff1c9eb1e09 in ?? () from /usr/lib/libQt5Core.so.5 #23 0x00007ff1c9f0efea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #24 0x00007ff1c9f8b804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #25 0x00007ff1c9e88d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #26 0x00007ff1c9eabbb3 in ?? () from /usr/lib/libQt5Core.so.5 #27 0x00007ff1c9eae424 in ?? () from /usr/lib/libQt5Core.so.5 #28 0x00007ff1c9eb1e09 in ?? () from /usr/lib/libQt5Core.so.5 #29 0x00007ff1c9f0efea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #30 0x00007ff1c9f8b804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #31 0x00007ff1c9e88d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #32 0x00007ff1c7b40a58 in ?? () from /usr/lib/libKF5ItemModels.so.5 #33 0x00007ff1c7b40f88 in ?? () from /usr/lib/libKF5ItemModels.so.5 #34 0x00007ff1c7b42b21 in ?? () from /usr/lib/libKF5ItemModels.so.5 #35 0x00007ff1c9f0efea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #36 0x00007ff1c9e91487 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/libQt5Core.so.5 #37 0x00007ff1c9e9588c in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/libQt5Core.so.5 #38 0x00007ff1c9e97d74 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/libQt5Core.so.5 #39 0x00007ff1c7b2224e in KCheckableProxyModel::setData(QModelIndex const&, QVariant const&, int) () from /usr/lib/libKF5ItemModels.so.5 #40 0x00000000004184ad in checkAllItems(KCheckableProxyModel*, QModelIndex const&) () #41 0x00000000004184d0 in checkAllItems(KCheckableProxyModel*, QModelIndex const&) () #42 0x00000000004184d0 in checkAllItems(KCheckableProxyModel*, QModelIndex const&) () #43 0x000000000041afd8 in KOAlarmClient::deferredInit() () #44 0x00007ff1c9f0ee77 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #45 0x00007ff1cdc9a832 in Akonadi::EntityTreeModel::collectionPopulated(long long) () from /usr/lib/libKF5AkonadiCore.so.5 #46 0x00007ff1cdca9258 in Akonadi::EntityTreeModelPrivate::itemFetchJobDone(KJob*) () from /usr/lib/libKF5AkonadiCore.so.5 #47 0x00007ff1c9f0efea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #48 0x00007ff1cbaa9b82 in KJob::result(KJob*, KJob::QPrivateSignal) () from /usr/lib/libKF5CoreAddons.so.5 #49 0x00007ff1cbaaa8ba in KJob::emitResult() () from /usr/lib/libKF5CoreAddons.so.5 #50 0x00007ff1cdc5557b in ?? () from /usr/lib/libKF5AkonadiCore.so.5 #51 0x00007ff1c9f0feb1 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5 #52 0x00007ff1cac1a00c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #53 0x00007ff1cac1f4e6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #54 0x00007ff1c9ee089b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5 #55 0x00007ff1c9ee2c96 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5 #56 0x00007ff1c9f36e33 in ?? () from /usr/lib/libQt5Core.so.5 #57 0x00007ff1c18929fd in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #58 0x00007ff1c1892ce0 in ?? () from /usr/lib/libglib-2.0.so.0 #59 0x00007ff1c1892d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #60 0x00007ff1c9f3723f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5 #61 0x00007ff1c9ede26a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5 #62 0x00007ff1c9ee620c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5 #63 0x000000000041814d in main () Report to https://bugs.kde.org/ Reproducible: Always Steps to Reproduce: 1. akonadictl restart 2. 3.
I think it's a more general issue. Kontact crashes as well (at random times). I'll see in the next days if I can produce a more meaningful backtrace. Application: kontact (kontact), signal: Segmentation fault Using host libthread_db library "/usr/lib/libthread_db.so.1". [Current thread is 1 (Thread 0x7fe2b8712840 (LWP 8422))] Thread 12 (Thread 0x7fe297349700 (LWP 8423)): #0 0x00007fe2b518318d in poll () from /usr/lib/libc.so.6 #1 0x00007fe2ae2179f2 in ?? () from /usr/lib/libxcb.so.1 #2 0x00007fe2ae21956f in xcb_wait_for_event () from /usr/lib/libxcb.so.1 #3 0x00007fe29843fca9 in ?? () from /usr/lib/libQt5XcbQpa.so.5 #4 0x00007fe2b5a99a9e in ?? () from /usr/lib/libQt5Core.so.5 #5 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #6 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 11 (Thread 0x7fe29524f700 (LWP 8424)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3e5a01b in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e5a059 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 10 (Thread 0x7fe24fa2b700 (LWP 8425)): #0 0x00007fe2b518318d in poll () from /usr/lib/libc.so.6 #1 0x00007fe2adaf4c7c in ?? () from /usr/lib/libglib-2.0.so.0 #2 0x00007fe2adaf4d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #3 0x00007fe2b5cd125b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5 #4 0x00007fe2b5c7826a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5 #5 0x00007fe2b5a94af4 in QThread::exec() () from /usr/lib/libQt5Core.so.5 #6 0x00007fe2b5a99a9e in ?? () from /usr/lib/libQt5Core.so.5 #7 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #8 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 9 (Thread 0x7fe24d9bf700 (LWP 8426)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3b59244 in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e89e91 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 8 (Thread 0x7fe24d1be700 (LWP 8427)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3b5a2b3 in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e89e91 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 7 (Thread 0x7fe24c9bd700 (LWP 8428)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3b5a2b3 in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e89e91 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 6 (Thread 0x7fe23ffff700 (LWP 8429)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3b5a2b3 in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e89e91 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 5 (Thread 0x7fe23f7fe700 (LWP 8430)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3b5a2b3 in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e89e91 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 4 (Thread 0x7fe23effd700 (LWP 8431)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3b5a2b3 in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e89e91 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 3 (Thread 0x7fe23e7fc700 (LWP 8432)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe2b3b5a2b3 in ?? () from /usr/lib/libQt5WebKit.so.5 #2 0x00007fe2b3e89e91 in ?? () from /usr/lib/libQt5WebKit.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 2 (Thread 0x7fe1fa7fc700 (LWP 8826)): #0 0x00007fe2ae98207f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 #1 0x00007fe226f32564 in ?? () from /usr/lib/libQt5Script.so.5 #2 0x00007fe226f325a9 in ?? () from /usr/lib/libQt5Script.so.5 #3 0x00007fe2ae97c4a4 in start_thread () from /usr/lib/libpthread.so.0 #4 0x00007fe2b518c12d in clone () from /usr/lib/libc.so.6 Thread 1 (Thread 0x7fe2b8712840 (LWP 8422)): [KCrash Handler] #5 0x00007fe2aaeb8e25 in KCalCore::Calendar::setupRelations(QSharedPointer<KCalCore::Incidence> const&) () from /usr/lib/libKF5CalendarCore.so.5 #6 0x00007fe2aaf04b7c in KCalCore::MemoryCalendar::addIncidence(QSharedPointer<KCalCore::Incidence> const&) () from /usr/lib/libKF5CalendarCore.so.5 #7 0x00007fe2ab647034 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #8 0x00007fe2ab6559e0 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #9 0x00007fe2ab658384 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #10 0x00007fe2ab6589e5 in ?? () from /usr/lib/libKF5AkonadiCalendar.so.5 #11 0x00007fe2b5ca8fea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #12 0x00007fe2b5d25804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #13 0x00007fe2b5c22d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #14 0x00007fe2b5c45bb3 in ?? () from /usr/lib/libQt5Core.so.5 #15 0x00007fe2b5c48424 in ?? () from /usr/lib/libQt5Core.so.5 #16 0x00007fe2b5c4be09 in ?? () from /usr/lib/libQt5Core.so.5 #17 0x00007fe2b5ca8fea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #18 0x00007fe2b5d25804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #19 0x00007fe2b5c22d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #20 0x00007fe2b5c45bb3 in ?? () from /usr/lib/libQt5Core.so.5 #21 0x00007fe2b5c48424 in ?? () from /usr/lib/libQt5Core.so.5 #22 0x00007fe2b5c4be09 in ?? () from /usr/lib/libQt5Core.so.5 #23 0x00007fe2b5ca8fea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #24 0x00007fe2b5d25804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #25 0x00007fe2b5c22d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #26 0x00007fe2b5c45bb3 in ?? () from /usr/lib/libQt5Core.so.5 #27 0x00007fe2b5c48424 in ?? () from /usr/lib/libQt5Core.so.5 #28 0x00007fe2b5c4be09 in ?? () from /usr/lib/libQt5Core.so.5 #29 0x00007fe2b5ca8fea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #30 0x00007fe2b5d25804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #31 0x00007fe2b5c22d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #32 0x00007fe2aa701eee in ?? () from /usr/lib/libKF5ItemModels.so.5 #33 0x00007fe2aa702a7f in ?? () from /usr/lib/libKF5ItemModels.so.5 #34 0x00007fe2aa7063b9 in ?? () from /usr/lib/libKF5ItemModels.so.5 #35 0x00007fe2b5ca8fea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #36 0x00007fe2b5d25804 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /usr/lib/libQt5Core.so.5 #37 0x00007fe2b5c22d36 in QAbstractItemModel::endInsertRows() () from /usr/lib/libQt5Core.so.5 #38 0x00007fe2b05d4c4f in Akonadi::EntityTreeModelPrivate::itemsFetched(long long, QVector<Akonadi::Item> const&) () from /usr/lib/libKF5AkonadiCore.so.5 #39 0x00007fe2b05d4e99 in Akonadi::EntityTreeModelPrivate::itemsFetched(QVector<Akonadi::Item> const&) () from /usr/lib/libKF5AkonadiCore.so.5 #40 0x00007fe2b5ca8fea in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #41 0x00007fe2b056ea82 in Akonadi::ItemFetchJob::itemsReceived(QVector<Akonadi::Item> const&) () from /usr/lib/libKF5AkonadiCore.so.5 #42 0x00007fe2b0570de8 in ?? () from /usr/lib/libKF5AkonadiCore.so.5 #43 0x00007fe2b057b5b2 in ?? () from /usr/lib/libKF5AkonadiCore.so.5 #44 0x00007fe2b5ca9eb1 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5 #45 0x00007fe2b69b400c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #46 0x00007fe2b69b94e6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #47 0x00007fe2b5c7a89b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5 #48 0x00007fe2b5c7cc96 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5 #49 0x00007fe2b5cd0e33 in ?? () from /usr/lib/libQt5Core.so.5 #50 0x00007fe2adaf49fd in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #51 0x00007fe2adaf4ce0 in ?? () from /usr/lib/libglib-2.0.so.0 #52 0x00007fe2adaf4d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #53 0x00007fe2b5cd123f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5 #54 0x00007fe2b5c7826a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5 #55 0x00007fe2b5c8020c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5 #56 0x00000000004048a9 in main ()
*** This bug has been marked as a duplicate of bug 355736 ***