Application: kmail (5.14.2 (20.04.2))

Qt Version: 5.12.7
Frameworks Version: 5.76.0
Operating System: Linux 5.3.18-150300.59.60-default x86_64
Windowing system: X11
Distribution: openSUSE Leap 15.3

-- Information about the crash:
- What I was doing when the application crashed:

I was not using KMail, just browsing with Google Chrome. However KMail was downloading, filtering, and archiving emails. This kinds of crashes happen about 3 times per 8 hours of working day. Akonadi + KMail often crashe also when the desktop is locked, therefore these crashes are not due to user's actions.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#4  Akonadi::Item::parentCollection (this=this@entry=0x7ffd3021f1e0) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/item.cpp:275
#5  0x00007f5455982bad in Akonadi::EntityTreeModelPrivate::isHiddenImpl<Akonadi::Item> (this=0x55c9d98ae330, entity=..., type=<optimized out>) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/models/entitytreemodel_p.cpp:304
#6  0x00007f545597f38b in Akonadi::EntityTreeModelPrivate::isHidden (item=..., this=0x55c9d98ae330) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/models/entitytreemodel_p.cpp:321
#7  Akonadi::EntityTreeModelPrivate::monitoredItemRemoved (this=this@entry=0x55c9d98ae330, item=..., parentCollection=...) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/models/entitytreemodel_p.cpp:1122
#8  0x00007f545596df6a in Akonadi::EntityTreeModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7ffd3021f100) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/build/src/core/KF5AkonadiCore_autogen/include/moc_entitytreemodel.cpp:233
#9  0x00007f545db50e75 in QMetaObject::activate (sender=0x55c9d98ae8f0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x7ffd3021f100) at kernel/qobject.cpp:3804
#10 0x00007f545db51587 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f5455c16de0 <Akonadi::Monitor::staticMetaObject>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x7ffd3021f100) at kernel/qobject.cpp:3657
#11 0x00007f54558b1f25 in Akonadi::Monitor::itemRemoved (this=<optimized out>, _t1=...) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/build/src/core/KF5AkonadiCore_autogen/include/moc_monitor.cpp:950
#12 0x00007f54558c0781 in Akonadi::MonitorPrivate::emitToListeners<void (Akonadi::Monitor::*)(Akonadi::Item const&), Akonadi::Item> (signal=<optimized out>, this=0x55c9d948e160) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/monitor_p.h:404
#13 Akonadi::MonitorPrivate::emitItemsNotification (this=this@entry=0x55c9d948e160, msg_=..., items=..., collection=..., collectionDest=...) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/monitor_p.cpp:1077
#14 0x00007f54558c188b in Akonadi::MonitorPrivate::emitNotification (this=this@entry=0x55c9d948e160, msg=...) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/monitor_p.cpp:558
#15 0x00007f54558676fe in Akonadi::ChangeRecorderPrivate::emitNotification (this=0x55c9d948e160, msg=...) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/changerecorder_p.cpp:238
#16 0x00007f54558bfb7c in Akonadi::MonitorPrivate::dispatchNotifications (this=0x55c9d948e160) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/monitor_p.cpp:1003
#17 0x00007f545db50e75 in QMetaObject::activate (sender=sender@entry=0x7f5388005030, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3804
#18 0x00007f545db51587 in QMetaObject::activate (sender=sender@entry=0x7f5388005030, m=m@entry=0x7f5455c16660 <Akonadi::EntityCacheBase::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3657
#19 0x00007f54558963c0 in Akonadi::EntityCacheBase::dataAvailable (this=this@entry=0x7f5388005030) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/build/src/core/KF5AkonadiCore_autogen/include/moc_entitycache_p.cpp:151
#20 0x00007f545586314a in Akonadi::EntityCache<Akonadi::Collection, Akonadi::CollectionFetchJob, Akonadi::CollectionFetchScope>::processResult (this=0x7f5388005030, job=<optimized out>) at /usr/src/debug/akonadi-server-20.04.2-bp153.4.2.1.x86_64/src/core/entitycache_p.h:214
#21 0x00007f545db50e75 in QMetaObject::activate (sender=sender@entry=0x55ca1c7e5d80, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd3021f6c0) at kernel/qobject.cpp:3804
#22 0x00007f545db51587 in QMetaObject::activate (sender=sender@entry=0x55ca1c7e5d80, m=m@entry=0x7f545f353580 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd3021f6c0) at kernel/qobject.cpp:3657
#23 0x00007f545f0f39ec in KJob::result (this=this@entry=0x55ca1c7e5d80, _t1=<optimized out>, _t1@entry=0x55ca1c7e5d80, _t2=...) at /usr/src/debug/kcoreaddons-5.76.0-bp153.2.2.1.x86_64/build/src/lib/KF5CoreAddons_autogen/include/moc_kjob.cpp:575
#24 0x00007f545f0f4551 in KJob::finishJob (this=0x55ca1c7e5d80, emitResult=<optimized out>) at /usr/src/debug/kcoreaddons-5.76.0-bp153.2.2.1.x86_64/src/lib/jobs/kjob.cpp:93
#25 0x00007f545db5de44 in QtPrivate::QSlotObjectBase::call (a=0x7ffd3021f720, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#26 QSingleShotTimer::timerEvent (this=0x7f531a663db0) at kernel/qtimer.cpp:318
#27 0x00007f545db519db in QObject::event (this=0x7f531a663db0, e=<optimized out>) at kernel/qobject.cpp:1283
#28 0x00007f545e9a6f9c in QApplicationPrivate::notify_helper (this=this@entry=0x55c9d93aef30, receiver=receiver@entry=0x7f531a663db0, e=e@entry=0x7ffd3021fa60) at kernel/qapplication.cpp:3701
#29 0x00007f545e9ae5b0 in QApplication::notify (this=0x7ffd302201d0, receiver=0x7f531a663db0, e=0x7ffd3021fa60) at kernel/qapplication.cpp:3447
#30 0x00007f545db21368 in QCoreApplication::notifyInternal2 (receiver=0x7f531a663db0, event=0x7ffd3021fa60) at kernel/qcoreapplication.cpp:1088
#31 0x00007f545db7d859 in QTimerInfoList::activateTimers (this=0x55c9d93b73a0) at kernel/qtimerinfo_unix.cpp:643
#32 0x00007f545db7e021 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#33 0x00007f5450587694 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#34 0x00007f5450587a30 in ?? () from /usr/lib64/libglib-2.0.so.0
#35 0x00007f5450587abc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#36 0x00007f545db7e3ef in QEventDispatcherGlib::processEvents (this=0x55c9d9491030, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007f545db1f5ba in QEventLoop::exec (this=this@entry=0x7ffd3021fcb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#38 0x00007f545db287c0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1389
#39 0x000055c9d7f4da5b in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kmail-20.04.2-bp153.3.2.1.x86_64/src/main.cpp:163
[Inferior 1 (process 29753) detached]

Possible duplicates by query: bug 405878, bug 404052, bug 400145.

Reported using DrKonqi