https://bugs.kde.org/show_bug.cgi?id=365800
--- Comment #10 from Ilpo Kantonen <i...@iki.fi> --- I runned kaddressbook in gdb. I use binary Kubuntu 16.04.1 and gdb don't help very much but this maybe helps little to find the bug. The bug can be in isValid function? (gdb) bt #0 0xb5b06096 in Akonadi::Tag::isValid() const () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #1 0xb5ba3a04 in Akonadi::TagModel::data(QModelIndex const&, int) const () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #2 0xb7eea335 in ?? () from /usr/lib/i386-linux-gnu/libkaddressbookprivate.so.5 #3 0xb7eebb55 in ?? () from /usr/lib/i386-linux-gnu/libkaddressbookprivate.so.5 #4 0xb6b6d230 in QtPrivate::QSlotObjectBase::call (a=0xbfffe5ac, r=0x819e0b8, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124 #5 QMetaObject::activate (sender=0x81c2090, signalOffset=3, local_signal_index=10, argv=0xbfffe5ac) at kernel/qobject.cpp:3698 #6 0xb6b6db0d in QMetaObject::activate (sender=0x81c2090, m=0xb6da9018 <QAbstractItemModel::staticMetaObject>, local_signal_index=10, argv=0xbfffe5ac) at kernel/qobject.cpp:3578 #7 0xb6beca31 in QAbstractItemModel::rowsInserted (this=0x81c2090, _t1=..., _t2=0, _t3=0) at .moc/moc_qabstractitemmodel.cpp:583 #8 0xb6ae458e in QAbstractItemModel::endInsertRows (this=0x81c2090) at itemmodels/qabstractitemmodel.cpp:2619 #9 0xb5ba59ed in ?? () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #10 0xb5ba6182 in ?? () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #11 0xb5ba2fbe in ?? () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #12 0xb6b6d611 in QMetaObject::activate (sender=0x81d5760, signalOffset=22, local_signal_index=0, argv=0xbfffe864) at kernel/qobject.cpp:3713 #13 0xb6b6db0d in QMetaObject::activate (sender=0x81d5760, m=0xb5c293f4 <Akonadi::TagFetchJob::staticMetaObject>, local_signal_index=0, argv=0xbfffe864) at kernel/qobject.cpp:3578 #14 0xb5b52f91 in Akonadi::TagFetchJob::tagsReceived(QVector<Akonadi::Tag> const&) () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #15 0xb5b54afd in ?? () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #16 0xb5b3c0c6 in ?? () from /usr/lib/i386-linux-gnu/libKF5AkonadiCore.so.5 #17 0xb6b6a420 in QMetaCallEvent::placeMetaCall (this=0x80d7ca8, object=0x81d5760) at kernel/qobject.cpp:486 #18 0xb6b6e243 in QObject::event (this=0x81d5760, e=0x80d7ca8) at kernel/qobject.cpp:1239 #19 0xb742115a in QApplicationPrivate::notify_helper (this=0x8094260, receiver=0x81d5760, e=0x80d7ca8) at kernel/qapplication.cpp:3716 #20 0xb742681c in QApplication::notify (this=0xbfffef08, receiver=0x81d5760, e=0x80d7ca8) at kernel/qapplication.cpp:3499 #21 0xb6b3d81f in QCoreApplication::notifyInternal (this=0xbfffef08, receiver=0x81d5760, event=0x80d7ca8) at kernel/qcoreapplication.cpp:965 #22 0xb6b3feff in QCoreApplication::sendEvent (event=0x80d7ca8, receiver=<optimized out>) at kernel/qcoreapplication.h:224 #23 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x80928a8) at kernel/qcoreapplication.cpp:1593 #24 0xb6b403e7 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1451 #25 0xb6b95703 in postEventSourceDispatch (s=0x80c51e0) at kernel/qeventdispatcher_glib.cpp:271 #26 0xb4ca7ed9 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0 #27 0xb4ca8179 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #28 0xb4ca8244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0 #29 0xb6b95af3 in QEventDispatcherGlib::processEvents (this=0x80c3188, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #30 0xab924a81 in QPAEventDispatcherGlib::processEvents (this=0x80c3188, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115 #31 0xb6b3a953 in QEventLoop::processEvents (this=0xbfffee48, flags=...) at kernel/qeventloop.cpp:128 #32 0xb6b3adaa in QEventLoop::exec (this=0xbfffee48, flags=...) at kernel/qeventloop.cpp:204 #33 0xb6b43385 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229 #34 0xb6e62931 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542 #35 0xb741d024 in QApplication::exec () at kernel/qapplication.cpp:2976 #36 0x0804cdaf in main () -- You are receiving this mail because: You are watching all bug changes.