Application: kontact (4.13)
KDE Platform Version: 4.13.0 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic i686
Distribution: Ubuntu 14.04 LTS

-- Information about the crash:
- What I was doing when the application crashed: There was a system notification for migrating Knotes to Akonadi (?) but this proccess repeatedly failed. I'm not a super user. Just an user with no programming or code experience to solve problems from the command line. 

- Unusual behavior I noticed: Errors in Akonadi I wasn't aware of. Here is a directory in an online box folder with the error report: https://app.box.com/s/7e0kklvl66zzqe2fsdpv

- Custom settings of the application: Unable to migrate to ACONADI or the new "finding" proccess how ever it is called. 
Please help. I use this computer for work not for fun. I'm locked out of all my contacts & communication. Situation is CRITICAL. This is priority AAA' for me

Thanks in advance
Sakis-Greece

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xaf156780 (LWP 2250))]

Thread 5 (Thread 0xac475b40 (LWP 2265)):
#0  0xb7717424 in __kernel_vsyscall ()
#1  0xb3192d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb609d8ec in __pthread_cond_wait (cond=0xb57eccb0, mutex=0xb57ecc98) at forward.c:149
#3  0xb4f749ac in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb4f749ff in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb318ef70 in start_thread (arg=0xac475b40) at pthread_create.c:312
#6  0xb609070e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 4 (Thread 0xabb54b40 (LWP 2312)):
#0  0xb7717424 in __kernel_vsyscall ()
#1  0xb3192d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb609d8ec in __pthread_cond_wait (cond=0xabbc27dc, mutex=0xabbc27c4) at forward.c:149
#3  0xb4fa39f3 in WTF::ThreadCondition::wait(WTF::Mutex&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb4c7f574 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb4f8a7c6 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#6  0xb4fa3369 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#7  0xb318ef70 in start_thread (arg=0xabb54b40) at pthread_create.c:312
#8  0xb609070e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 3 (Thread 0xa9dd7b40 (LWP 2391)):
#0  __x86.get_pc_thunk.bx () at ../sysdeps/i386/i686/multiarch/strcat.S:55
#1  0xb609dac8 in pthread_mutex_lock (mutex=0xa9400558) at forward.c:192
#2  0xb30ee100 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb30a89bd in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb30a92df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb30a9528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb63e595f in QEventDispatcherGlib::processEvents (this=0xa9400468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7  0xb63b4823 in QEventLoop::processEvents (this=this@entry=0xa9dd7248, flags=...) at kernel/qeventloop.cpp:149
#8  0xb63b4b49 in QEventLoop::exec (this=this@entry=0xa9dd7248, flags=...) at kernel/qeventloop.cpp:204
#9  0xb62a123d in QThread::exec (this=this@entry=0xa185628) at thread/qthread.cpp:537
#10 0xb62a138b in QThread::run (this=0xa185628) at thread/qthread.cpp:604
#11 0xb62a3b6f in QThreadPrivate::start (arg=0xa185628) at thread/qthread_unix.cpp:349
#12 0xb318ef70 in start_thread (arg=0xa9dd7b40) at pthread_create.c:312
#13 0xb609070e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 2 (Thread 0xa70bdb40 (LWP 3784)):
#0  0xb30edffe in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb30ee638 in g_private_get () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb30cff3e in g_thread_self () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb30a9516 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb63e595f in QEventDispatcherGlib::processEvents (this=0xaa85658, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0xb63b4823 in QEventLoop::processEvents (this=this@entry=0xa70bd218, flags=...) at kernel/qeventloop.cpp:149
#6  0xb63b4b49 in QEventLoop::exec (this=this@entry=0xa70bd218, flags=...) at kernel/qeventloop.cpp:204
#7  0xb62a123d in QThread::exec (this=this@entry=0xae0c6f0) at thread/qthread.cpp:537
#8  0xb6394c44 in QInotifyFileSystemWatcherEngine::run (this=0xae0c6f0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0xb62a3b6f in QThreadPrivate::start (arg=0xae0c6f0) at thread/qthread_unix.cpp:349
#10 0xb318ef70 in start_thread (arg=0xa70bdb40) at pthread_create.c:312
#11 0xb609070e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 1 (Thread 0xaf156780 (LWP 2250)):
[KCrash Handler]
#7  0xb7717424 in __kernel_vsyscall ()
#8  0xb5fd2827 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#9  0xb5fd5c53 in __GI_abort () at abort.c:89
#10 0xb619f595 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#11 0xb619d1f3 in ?? () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#12 0xb619d22f in std::terminate() () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#13 0xb619df52 in __cxa_pure_virtual () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#14 0xa85b6386 in MailCommon::Util::updatedCollection(Akonadi::Collection const&) () from /usr/lib/libmailcommon.so.4
#15 0xa876d02e in KMMainWidget::updateMessageActionsDelayed() () from /usr/lib/libkmailprivate.so.4
#16 0xa876da39 in KMMainWidget::updateMessageActions(bool) () from /usr/lib/libkmailprivate.so.4
#17 0xa876e7d9 in KMMainWidget::initializeFilterActions() () from /usr/lib/libkmailprivate.so.4
#18 0xa93ae519 in ?? () from /usr/lib/kde4/kmailpart.so
#19 0xb5f717fc in KParts::Part::customEvent (this=0xa6737c0, ev=0xbfb03bdc) at ../../kparts/part.cpp:319
#20 0xb63cf762 in QObject::event (this=0xa6737c0, e=0xbfb03bdc) at kernel/qobject.cpp:1225
#21 0xb69117f4 in QApplicationPrivate::notify_helper (this=0x9fd4e00, receiver=0xa6737c0, e=0xbfb03bdc) at kernel/qapplication.cpp:4567
#22 0xb69182d3 in QApplication::notify (this=0xbfb04438, receiver=receiver@entry=0xa6737c0, e=e@entry=0xbfb03bdc) at kernel/qapplication.cpp:4353
#23 0xb74610a4 in KApplication::notify (this=0xbfb04438, receiver=0xa6737c0, event=0xbfb03bdc) at ../../kdeui/kernel/kapplication.cpp:311
#24 0xb63b5e4a in QCoreApplication::notifyInternal (this=0xbfb04438, receiver=0xa6737c0, event=event@entry=0xbfb03bdc) at kernel/qcoreapplication.cpp:953
#25 0xb5f7d1e0 in sendEvent (event=0xbfb03bdc, receiver=<optimized out>) at /usr/include/qt4/QtCore/qcoreapplication.h:231
#26 KParts::MainWindow::createGUI (this=0xa5a11a8, part=0x0) at ../../kparts/mainwindow.cpp:101
#27 0xb76b50eb in Kontact::MainWindow::~MainWindow() () from /usr/lib/libkontactprivate.so.4
#28 0xb76b52bc in Kontact::MainWindow::~MainWindow() () from /usr/lib/libkontactprivate.so.4
#29 0xb63c9553 in qDeleteInEventHandler (o=o@entry=0xa5a11a8) at kernel/qobject.cpp:4280
#30 0xb63cf720 in QObject::event (this=0xa5a11a8, e=0xaf77ee8) at kernel/qobject.cpp:1175
#31 0xb696b452 in QWidget::event (this=0xa5a11a8, event=event@entry=0xaf77ee8) at kernel/qwidget.cpp:8846
#32 0xb6d8d54f in QMainWindow::event (this=this@entry=0xa5a11a8, event=event@entry=0xaf77ee8) at widgets/qmainwindow.cpp:1478
#33 0xb752f795 in KMainWindow::event (this=this@entry=0xa5a11a8, ev=ev@entry=0xaf77ee8) at ../../kdeui/widgets/kmainwindow.cpp:1084
#34 0xb75714e6 in KXmlGuiWindow::event (this=0xa5a11a8, ev=0xaf77ee8) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#35 0xb69117f4 in QApplicationPrivate::notify_helper (this=0x9fd4e00, receiver=0xa5a11a8, e=0xaf77ee8) at kernel/qapplication.cpp:4567
#36 0xb69182d3 in QApplication::notify (this=0xbfb04438, receiver=receiver@entry=0xa5a11a8, e=e@entry=0xaf77ee8) at kernel/qapplication.cpp:4353
#37 0xb74610a4 in KApplication::notify (this=0xbfb04438, receiver=0xa5a11a8, event=0xaf77ee8) at ../../kdeui/kernel/kapplication.cpp:311
#38 0xb63b5e4a in QCoreApplication::notifyInternal (this=0xbfb04438, receiver=receiver@entry=0xa5a11a8, event=event@entry=0xaf77ee8) at kernel/qcoreapplication.cpp:953
#39 0xb63b970d in sendEvent (event=0xaf77ee8, receiver=0xa5a11a8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x9f7d010) at kernel/qcoreapplication.cpp:1577
#41 0xb63b9c1c in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#42 0xb63e623e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#43 postEventSourceDispatch (s=0x9fc7f30) at kernel/qeventdispatcher_glib.cpp:287
#44 0xb30a91e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#45 0xb30a9468 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#46 0xb30a9528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#47 0xb63e593b in QEventDispatcherGlib::processEvents (this=this@entry=0x9f7ddc8, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#48 0xb69c65de in QGuiEventDispatcherGlib::processEvents (this=0x9f7ddc8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#49 0xb63b4823 in QEventLoop::processEvents (this=this@entry=0xbfb04388, flags=...) at kernel/qeventloop.cpp:149
#50 0xb63b4b49 in QEventLoop::exec (this=this@entry=0xbfb04388, flags=...) at kernel/qeventloop.cpp:204
#51 0xb63ba8fe in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#52 0xb690fa24 in QApplication::exec () at kernel/qapplication.cpp:3828
#53 0x0804ab4c in ?? ()
#54 0xb5fbda83 in __libc_start_main (main=0x804a1f0, argc=3, argv=0xbfb04514, init=0x804b7a0 <__libc_csu_init>, fini=0x804b810 <__libc_csu_fini>, rtld_fini=0xb7727180 <_dl_fini>, stack_end=0xbfb0450c) at libc-start.c:287
#55 0x0804afc6 in _start ()

Reported using DrKonqi