Trying to enable the akonadi ical resource in korganizer, it says something like "found protocol version 5 but requires version 6 of the akonadi server".

I have kdesupport, kdelibs, kdepimlibs and kdepim compiled from sources. 

I'm getting the same backtrace when I do an "akonadictl start". I get an infinite loop of akonadi_ical_resource crashes.

[/home/kde-devel/kde/bin/akonadi_ical_resource] Object::connect: No such slot Akonadi::AgentBasePrivate::slotNetworkStatusChange(Solid::Networking::Status)
[/home/kde-devel/kde/bin/akonadi_ical_resource] akonadi_ical_resource_1(23301) Akonadi::AgentBase::registerObserver: observer= 0x80e93b0 this= 0x80e93a0
[akonadiserver] Database "akonadi" opened using driver "QMYSQL"
[/home/kde-devel/kde/bin/akonadi_ical_resource] akonadi_ical_resource_1(23301)/kdecore (KSycoca) KSycocaPrivate::openDatabase: Trying to open ksycoca from  "/var/tmp/kdecache-kde-devel/ksycoca4"
[/home/kde-devel/kde/bin/akonadi_ical_resource] akonadi_ical_resource_1(23301) Akonadi::AgentBasePrivate::itemAdded: mObserver= 0x80e93b0 this= 0x80e9fd8
ProcessControl: Application '/home/kde-devel/kde/bin/akonadi_ical_resource' stopped unexpected (Process crashed)
(...)

The problem is in kdepim/akonadi/resources/ical/icalresource.cpp

In ICalResource::itemAdded() mCalendar is null.

So I patched it locally:

Index: icalresource.cpp
===================================================================
--- icalresource.cpp    (revision 900946)
+++ icalresource.cpp    (working copy)
@@ -109,6 +109,9 @@ bool ICalResource::readFromFile( const Q

 void ICalResource::itemAdded( const Akonadi::Item & item, const Akonadi::Collection& )
 {
+  if ( !mCalendar ){
+    return;
+  }
   Q_ASSERT( item.hasPayload<IncidencePtr>() );
   IncidencePtr i = item.payload<IncidencePtr>();
   mCalendar->addIncidence( i.get()->clone() );

and now akonadi starts.

Hope this helps finding the bug.

Shouldn't ICalResource::readFromFile be called first?

A tentative fix has been committed in revision 901962.

*** Bug 175773 has been marked as a duplicate of this bug. ***

I have problems with kpilot & akonadi_ical_resource it keeps crashing when doing sync. I believe is has a common cause to that reported in this BUG, therefore I did not open another one.

Anyway, here is the dump:

Application: Akonadi Resource (akonadi_ical_resource), signal SIGSEGV
[?1034h(no debugging symbols found)
(no debugging symbols found)
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[Thread debugging using libthread_db enabled]
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[KCrash handler]
#5  0x0000000000405112 in ICalResource::itemAdded(Akonadi::Item const&, Akonadi::Collection const&) ()
#6  0x00007f05558f1af2 in Akonadi::AgentBasePrivate::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libakonadi-kde.so.4
#7  0x00007f0555126454 in QMetaObject::activate(QObject*, int, int, void**) ()
   from /usr/lib64/libQtCore.so.4
#8  0x00007f0555931fda in Akonadi::Monitor::itemAdded(Akonadi::Item const&, Akonadi::Collection const&) () from /usr/lib64/libakonadi-kde.so.4
#9  0x00007f0555933af6 in Akonadi::MonitorPrivate::emitItemNotification(Akonadi::NotificationMessage const&, Akonadi::Item const&, Akonadi::Collection const&, Akonadi::Collection const&) () from /usr/lib64/libakonadi-kde.so.4
#10 0x00007f0555934d9a in Akonadi::MonitorPrivate::processNotification(Akonadi::NotificationMessage const&) () from /usr/lib64/libakonadi-kde.so.4
#11 0x00007f05559036fa in Akonadi::ChangeRecorder::replayNext() ()
   from /usr/lib64/libakonadi-kde.so.4
#12 0x00007f0555903775 in Akonadi::ChangeRecorder::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libakonadi-kde.so.4
#13 0x00007f0555126454 in QMetaObject::activate(QObject*, int, int, void**) ()
   from /usr/lib64/libQtCore.so.4
#14 0x00007f055593cb58 in Akonadi::ResourceScheduler::executeNext() ()
   from /usr/lib64/libakonadi-kde.so.4
#15 0x00007f055593ccd0 in Akonadi::ResourceScheduler::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libakonadi-kde.so.4
#16 0x00007f0555126454 in QMetaObject::activate(QObject*, int, int, void**) ()
   from /usr/lib64/libQtCore.so.4
#17 0x00007f055512c6ff in ?? () from /usr/lib64/libQtCore.so.4
#18 0x00007f0555120da3 in QObject::event(QEvent*) ()
   from /usr/lib64/libQtCore.so.4
#19 0x00007f0552e5f1bd in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /usr/lib64/libQtGui.so.4
#20 0x00007f0552e66f8a in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib64/libQtGui.so.4
#21 0x00007f0551ea0bab in KApplication::notify(QObject*, QEvent*) ()
   from /usr/lib64/libkdeui.so.5
#22 0x00007f0555112091 in QCoreApplication::notifyInternal(QObject*, QEvent*)
    () from /usr/lib64/libQtCore.so.4
#23 0x00007f055513e1c0 in ?? () from /usr/lib64/libQtCore.so.4
#24 0x00007f055513a58d in ?? () from /usr/lib64/libQtCore.so.4
#25 0x00007f054c39a0db in g_main_context_dispatch ()
   from /usr/lib64/libglib-2.0.so.0
#26 0x00007f054c39d8ad in ?? () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f054c39da6b in g_main_context_iteration ()
   from /usr/lib64/libglib-2.0.so.0
#28 0x00007f055513a4ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#29 0x00007f0552eef97f in ?? () from /usr/lib64/libQtGui.so.4
#30 0x00007f05551109a2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#31 0x00007f0555110b2d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#32 0x00007f0555112ffd in QCoreApplication::exec() ()
   from /usr/lib64/libQtCore.so.4
#33 0x00007f0555939792 in Akonadi::ResourceBase::init(Akonadi::ResourceBase*)
    () from /usr/lib64/libakonadi-kde.so.4
#34 0x0000000000405e48 in main ()

OK, I have this too. On startup, the akonadi_kabc_resource crashes several times. Here is the back strace:

Application: Akonadi Resource (akonadi_kabc_resource), signal SIGABRT

Thread 1 (Thread 0xb5dcc6c0 (LWP 6530)):
[KCrash Handler]
#6  0xb800b430 in __kernel_vsyscall ()
#7  0xb669b880 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb669d248 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb7d31795 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb7d31872 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb7d31915 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb7f65e6b in Akonadi::CollectionFetchJob::CollectionFetchJob () from /usr/lib/libakonadi-kde.so.4
#13 0xb7f9c22c in Akonadi::ItemCollectionFetchJob::doStart () from /usr/lib/libakonadi-kde.so.4
#14 0xb7f98f75 in ?? () from /usr/lib/libakonadi-kde.so.4
#15 0xb7faf881 in ?? () from /usr/lib/libakonadi-kde.so.4
#16 0xb7fb26ba in ?? () from /usr/lib/libakonadi-kde.so.4
#17 0xb7fb282e in Akonadi::Session::qt_metacall () from /usr/lib/libakonadi-kde.so.4
#18 0xb7e3ea60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#19 0xb7e3f7e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#20 0xb7e44db7 in ?? () from /usr/lib/libQtCore.so.4
#21 0xb7e44edc in ?? () from /usr/lib/libQtCore.so.4
#22 0xb7e3953f in QObject::event () from /usr/lib/libQtCore.so.4
#23 0xb6a2d8ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#24 0xb6a3572e in QApplication::notify () from /usr/lib/libQtGui.so.4
#25 0xb754e04d in KApplication::notify () from /usr/lib/libkdeui.so.5
#26 0xb7e29e61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#27 0xb7e57d81 in ?? () from /usr/lib/libQtCore.so.4
#28 0xb7e54520 in ?? () from /usr/lib/libQtCore.so.4
#29 0xb65096f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0xb650cda3 in ?? () from /usr/lib/libglib-2.0.so.0
#31 0xb650cf61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0xb7e54478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#33 0xb6ac7ea5 in ?? () from /usr/lib/libQtGui.so.4
#34 0xb7e2852a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#35 0xb7e286ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#36 0xb7e2ada5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#37 0xb6a2d767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#38 0xb7fa3943 in Akonadi::ResourceBase::init () from /usr/lib/libakonadi-kde.so.4
#39 0x0805097f in _start ()

Same with the ical resource. I can recreate the crashes by restarting the ikonadi server in the systems settings applet. It used to work. It seems it started after 2 consecutive power events (the power cord on my laptop was not plugged in completely).

O, running KDE 42 RC1

Where's the crash report:

Application: Akonadi Resource (akonadi_ical_resource), signal SIGABRT

Thread 1 (Thread 0xb5a8b8d0 (LWP 7497)):
[KCrash Handler]
#6  0xb7f2d430 in __kernel_vsyscall ()
#7  0xb64b2880 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb64b4248 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb70a8795 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb70a8872 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb70a8915 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb7e7ce6b in Akonadi::CollectionFetchJob::CollectionFetchJob () from /usr/lib/libakonadi-kde.so.4
#13 0xb7eb322c in Akonadi::ItemCollectionFetchJob::doStart () from /usr/lib/libakonadi-kde.so.4
#14 0xb7eaff75 in ?? () from /usr/lib/libakonadi-kde.so.4
#15 0xb7ec6881 in ?? () from /usr/lib/libakonadi-kde.so.4
#16 0xb7ec96ba in ?? () from /usr/lib/libakonadi-kde.so.4
#17 0xb7ec982e in Akonadi::Session::qt_metacall () from /usr/lib/libakonadi-kde.so.4
#18 0xb71b5a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#19 0xb71b67e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#20 0xb71bbdb7 in ?? () from /usr/lib/libQtCore.so.4
#21 0xb71bbedc in ?? () from /usr/lib/libQtCore.so.4
#22 0xb71b053f in QObject::event () from /usr/lib/libQtCore.so.4
#23 0xb68448ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#24 0xb684c72e in QApplication::notify () from /usr/lib/libQtGui.so.4
#25 0xb768504d in KApplication::notify () from /usr/lib/libkdeui.so.5
#26 0xb71a0e61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#27 0xb71ced81 in ?? () from /usr/lib/libQtCore.so.4
#28 0xb71cb520 in ?? () from /usr/lib/libQtCore.so.4
#29 0xb60296f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0xb602cda3 in ?? () from /usr/lib/libglib-2.0.so.0
#31 0xb602cf61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0xb71cb478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#33 0xb68deea5 in ?? () from /usr/lib/libQtGui.so.4
#34 0xb719f52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#35 0xb719f6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#36 0xb71a1da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#37 0xb6844767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#38 0xb7eba943 in Akonadi::ResourceBase::init () from /usr/lib/libakonadi-kde.so.4
#39 0x0805524f in _start ()

#6 and #7 are duplicates of bug 180655 and unrelated to the original issue

*** Bug 190691 has been marked as a duplicate of this bug. ***

FYI the problem persists with KDE 4.2.3.

This has been fixed meanwile