Version:            (using KDE 4.2.0)
Compiler:          gcc 4.3.2-7 (I guess) 
OS:                Linux
Installed from:    Fedora RPMs

Kontact crashes when started either from Application launcher or from shell. Single components (kmail, korganizer, kaddrssbook...) can be started OK. KOntact worked OK till a couple of days ago the only thing was it sometimes did not want to open kmail within Kontact (kmail opened as a separate application but when you closed kmail and reopened kontact it was back to OK). 

It is a small business environment. Others do not have these kind of problems. I have 2 accounts: Kolab server (through IMAP) and POP3 mail. Distro is Fedora 10 with KDE 4.2.0., everything up to date.

When starting Kontact from shell it says:

-- QUOTE ----------------------------------------
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
*** KMail got signal 6 (Crashing)
<unknown program name>(3958)/: Communication problem with  "kontact" , it probably crashed.
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Message did not receive a reply (timeout by message bus)" "

KCrash: Application 'kontact' crashing...
sock_file=/home/brecko/.kde/socket-brecko01.ksec.si/kdeinit4__0
-- END QUOTE ------------------------------------


The KDE crash handler reports fatal error with the following details:

Application: Kontact (kontact), signal SIGABRT
[Current thread is 1 (Thread 0xb7f0e770 (LWP 3959))]

-- QUOTE ----------------------------------------
Thread 2 (Thread 0xb51ffb90 (LWP 3967)):
#0  0x00e85416 in __kernel_vsyscall ()
#1  0x00572432 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x02b4d77c in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#3  0x02b42946 in ?? () from /usr/lib/libQtCore.so.4
#4  0x02b4c75e in ?? () from /usr/lib/libQtCore.so.4
#5  0x0056e51f in start_thread () from /lib/libpthread.so.0
#6  0x004a404e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb7f0e770 (LWP 3959)):
[KCrash Handler]
#6  0x00e85416 in __kernel_vsyscall ()
#7  0x003eb460 in raise () from /lib/libc.so.6
#8  0x003ece28 in abort () from /lib/libc.so.6
#9  0x0042f3d3 in malloc_printerr () from /lib/libc.so.6
#10 0x004312f5 in free () from /lib/libc.so.6
#11 0x008b6591 in operator delete () from /usr/lib/libstdc++.so.6
#12 0x02c3bc05 in QEventLoop::~QEventLoop () from /usr/lib/libQtCore.so.4
#13 0x02c4b48f in QObjectPrivate::deleteChildren () from /usr/lib/libQtCore.so.4
#14 0x02c53fd3 in QObject::~QObject () from /usr/lib/libQtCore.so.4
#15 0x0756c9c1 in KJob::~KJob () from /usr/lib/libkdecore.so.5
#16 0x0756b7f8 in KCompositeJob::~KCompositeJob () from /usr/lib/libkdecore.so.5
#17 0x012d864c in Akonadi::Job::~Job () from /usr/lib/libakonadi-kde.so.4
#18 0x012a92cd in Akonadi::CollectionFetchJob::~CollectionFetchJob () from /usr/lib/libakonadi-kde.so.4
#19 0x02c4b17c in qDeleteInEventHandler () from /usr/lib/libQtCore.so.4
#20 0x02c4cb33 in QObject::event () from /usr/lib/libQtCore.so.4
#21 0x0533f68c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#22 0x053474ce in QApplication::notify () from /usr/lib/libQtGui.so.4
#23 0x07aeffdd in KApplication::notify () from /usr/lib/libkdeui.so.5
#24 0x02c3d1c1 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#25 0x02c3de45 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#26 0x02c3e03d in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#27 0x02c67baf in ?? () from /usr/lib/libQtCore.so.4
#28 0x00186238 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#29 0x001898e3 in ?? () from /lib/libglib-2.0.so.0
#30 0x00189aa1 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#31 0x02c677f8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#32 0x053d8515 in ?? () from /usr/lib/libQtGui.so.4
#33 0x02c3b88a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#34 0x02c3ba4a in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#35 0x07b7fbec in KWallet::Wallet::openWallet () from /usr/lib/libkdeui.so.5
#36 0x04845ca7 in KMKernel::wallet () from /usr/lib/libkmailprivate.so.4
#37 0x047d2829 in ?? () from /usr/lib/libkmailprivate.so.4
#38 0x04772f96 in KMail::AccountManager::readPasswords () from /usr/lib/libkmailprivate.so.4
#39 0x047cfff3 in ?? () from /usr/lib/libkmailprivate.so.4
#40 0x047dba3f in ?? () from /usr/lib/libkmailprivate.so.4
#41 0x0481b8eb in ?? () from /usr/lib/libkmailprivate.so.4
#42 0x04826481 in ?? () from /usr/lib/libkmailprivate.so.4
#43 0x047ec926 in ?? () from /usr/lib/libkmailprivate.so.4
#44 0x047eccf5 in ?? () from /usr/lib/libkmailprivate.so.4
#45 0x047747bc in KMail::AccountManager::processNextCheck () from /usr/lib/libkmailprivate.so.4
#46 0x04774ca3 in KMail::AccountManager::singleCheckMail () from /usr/lib/libkmailprivate.so.4
#47 0x04774f14 in KMail::AccountManager::checkMail () from /usr/lib/libkmailprivate.so.4
#48 0x0490a858 in KMMainWidget::slotCheckMail () from /usr/lib/libkmailprivate.so.4
#49 0x04930dd9 in KMMainWidget::qt_metacall () from /usr/lib/libkmailprivate.so.4
#50 0x02c51df0 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#51 0x02c52b72 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#52 0x02c58147 in ?? () from /usr/lib/libQtCore.so.4
#53 0x02c5826c in ?? () from /usr/lib/libQtCore.so.4
#54 0x02c4c8cf in QObject::event () from /usr/lib/libQtCore.so.4
#55 0x0533f68c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#56 0x053474ce in QApplication::notify () from /usr/lib/libQtGui.so.4
#57 0x07aeffdd in KApplication::notify () from /usr/lib/libkdeui.so.5
#58 0x02c3d1c1 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#59 0x02c6b081 in ?? () from /usr/lib/libQtCore.so.4
#60 0x02c678a0 in ?? () from /usr/lib/libQtCore.so.4
#61 0x00186238 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#62 0x001898e3 in ?? () from /lib/libglib-2.0.so.0
#63 0x00189aa1 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#64 0x02c677f8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#65 0x053d8515 in ?? () from /usr/lib/libQtGui.so.4
#66 0x02c3b88a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#67 0x02c3ba4a in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#68 0x0756c851 in KJob::exec () from /usr/lib/libkdecore.so.5
#69 0x01113388 in ?? () from /usr/lib/kde4/kabc_akonadi.so
#70 0x077f41de in KABC::AddressBook::asyncLoad () from /usr/lib/libkabc.so.4
#71 0x0781ebfa in KABC::StdAddressBook::Private::init () from /usr/lib/libkabc.so.4
#72 0x0781f1ad in KABC::StdAddressBook::self () from /usr/lib/libkabc.so.4
#73 0x0287943c in KABCore::KABCore () from /usr/lib/libkaddressbookprivate.so.4
#74 0x01104e3b in ?? () from /usr/lib/kde4/kaddressbookpart.so
#75 0x01105982 in KPluginFactory::createPartInstance<KAddressbookPart> () from /usr/lib/kde4/kaddressbookpart.so
#76 0x0766a04f in KPluginFactory::create () from /usr/lib/libkdecore.so.5
#77 0x002ac322 in Kontact::Core::createPart () from /usr/lib/libkontactinterfaces.so.4
#78 0x002ad8f7 in Kontact::Plugin::loadPart () from /usr/lib/libkontactinterfaces.so.4
#79 0x06edf6f5 in ?? () from /usr/lib/kde4/kontact_kaddressbookplugin.so
#80 0x002ad852 in Kontact::Plugin::part () from /usr/lib/libkontactinterfaces.so.4
#81 0x071a40f8 in Kontact::MainWindow::selectPlugin () from /usr/lib/libkontactprivate.so.4
#82 0x0719d9d5 in Kontact::MainWindow::selectPlugin () from /usr/lib/libkontactprivate.so.4
#83 0x0719d183 in Kontact::MainWindow::loadSettings () from /usr/lib/libkontactprivate.so.4
#84 0x071a329d in Kontact::MainWindow::initObject () from /usr/lib/libkontactprivate.so.4
#85 0x071a3740 in Kontact::MainWindow::MainWindow () from /usr/lib/libkontactprivate.so.4
#86 0x0804a8a6 in _start ()
-- END QUOTE ------------------------------------

Regards, 
Bojo Recko