Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.1 (KDE 4.3.1) "release 6"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-0.1-default x86_64
Distribution: "openSUSE 11.2 (x86_64)"

What I was doing when the application crashed:
After closing Kontact I receive several messages indicating that the one or more resource files used by Akonadi are being used by another application and cannot be closed out.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x00007fab0b942dc0 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#6  0x00007fab0ae5cf5a in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#7  0x00007fab0ae0e2ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#8  0x00007fab0ae1557e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#9  0x00007fab0c2bb8d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#10 0x00007fab0b942ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#11 0x00007fab0ae5cf5a in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#12 0x00007fab0b19bab6 in QFrame::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#13 0x00007fab0ae0e2ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#14 0x00007fab0ae1557e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#15 0x00007fab0c2bb8d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#16 0x00007fab0b942ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#17 0x00007fab0ae5cf5a in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#18 0x00007fab0ae0e2ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#19 0x00007fab0ae1557e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#20 0x00007fab0c2bb8d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#21 0x00007fab0b942ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#22 0x00007fab0ae5cf5a in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#23 0x00007fab0ae0e2ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#24 0x00007fab0ae1557e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#25 0x00007fab0c2bb8d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#26 0x00007fab0b942ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#27 0x00007fab0ae5cf5a in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#28 0x00007fab0b1b60bb in QMainWindow::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#29 0x00007fab0c3c6d83 in KXmlGuiWindow::event(QEvent*) () from /usr/lib64/libkdeui.so.5
#30 0x00007fab0ae0e2ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#31 0x00007fab0ae1557e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#32 0x00007fab0c2bb8d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#33 0x00007fab0b942ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#34 0x00007fab0ae13f09 in QApplicationPrivate::enterModal(QWidget*) () from /usr/lib64/libQtGui.so.4
#35 0x00007fab0ae61e85 in QWidgetPrivate::show_helper() () from /usr/lib64/libQtGui.so.4
#36 0x00007fab0ae62eba in QWidget::setVisible(bool) () from /usr/lib64/libQtGui.so.4
#37 0x00007fab0b26c48c in QDialog::setVisible(bool) () from /usr/lib64/libQtGui.so.4
#38 0x00007fab0b26b7a5 in QDialog::exec() () from /usr/lib64/libQtGui.so.4
#39 0x00007fab0c241fc5 in KMessageBox::createKMessageBox(KDialog*, QIcon const&, QString const&, QStringList const&, QString const&, bool*, QFlags<KMessageBox::Option>, QString const&, QMessageBox::Icon) () from /usr/lib64/libkdeui.so.5
#40 0x00007fab0c243240 in KMessageBox::createKMessageBox(KDialog*, QMessageBox::Icon, QString const&, QStringList const&, QString const&, bool*, QFlags<KMessageBox::Option>, QString const&) ()
   from /usr/lib64/libkdeui.so.5
#41 0x00007fab0c244103 in KMessageBox::errorListWId(unsigned long, QString const&, QStringList const&, QString const&, QFlags<KMessageBox::Option>) () from /usr/lib64/libkdeui.so.5
#42 0x00007fab0c244302 in KMessageBox::error(QWidget*, QString const&, QString const&, QFlags<KMessageBox::Option>) () from /usr/lib64/libkdeui.so.5
#43 0x00007fab0812e0ee in KABC::GuiErrorHandler::error(QString const&) () from /usr/lib64/libkabc.so.4
#44 0x00007fab08113799 in KABC::AddressBook::error(QString const&) () from /usr/lib64/libkabc.so.4
#45 0x00007faaeeb6a535 in KABC::ResourceFile::requestSaveTicket() () from /usr/lib64/libkabc_file_core.so.4
#46 0x00007fab08111c8e in KABC::AddressBook::requestSaveTicket(KABC::Resource*) () from /usr/lib64/libkabc.so.4
#47 0x00007fab0813d2f2 in KABC::StdAddressBook::Private::saveAll() () from /usr/lib64/libkabc.so.4
#48 0x00007fab0813d517 in KABC::StdAddressBook::~StdAddressBook() () from /usr/lib64/libkabc.so.4
#49 0x00007fab0813c746 in KABC::StdAddressBook::close() () from /usr/lib64/libkabc.so.4
#50 0x00007faaeb4da9a0 in KABCore::~KABCore() () from /usr/lib64/libkaddressbookprivate.so.4
#51 0x00007fab0b95103c in QObjectPrivate::deleteChildren() () from /usr/lib64/libQtCore.so.4
#52 0x00007fab0ae58823 in QWidget::~QWidget() () from /usr/lib64/libQtGui.so.4
#53 0x00007fab0a3e20c4 in KParts::Part::~Part() () from /usr/lib64/libkparts.so.4
#54 0x00007faaeb7542eb in ?? () from /usr/lib64/kde4/kaddressbookpart.so
#55 0x00007fab0c9fcb5e in Kontact::Plugin::~Plugin() () from /usr/lib64/libkontactinterfaces.so.4
#56 0x00007faaf6f04ca5 in ?? () from /usr/lib64/kde4/kontact_kaddressbookplugin.so
#57 0x00007fab0cc1e7ef in Kontact::MainWindow::~MainWindow() () from /usr/lib64/libkontactprivate.so.4
#58 0x00007fab0b9522fd in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#59 0x00007fab0ae5c48f in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#60 0x00007fab0b1b60bb in QMainWindow::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#61 0x00007fab0c3c6d83 in KXmlGuiWindow::event(QEvent*) () from /usr/lib64/libkdeui.so.5
#62 0x00007fab0ae0e2ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#63 0x00007fab0ae1557e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#64 0x00007fab0c2bb8d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#65 0x00007fab0b942ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#66 0x00007fab0b9439ea in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#67 0x00007fab0b96b803 in ?? () from /usr/lib64/libQtCore.so.4
#68 0x00007fab04543dde in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#69 0x00007fab045477a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#70 0x00007fab045478d0 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#71 0x00007fab0b96b3a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#72 0x00007fab0aea131e in ?? () from /usr/lib64/libQtGui.so.4
#73 0x00007fab0b941712 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#74 0x00007fab0b941ae4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#75 0x00007fab0b943c99 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#76 0x0000000000403f67 in _start ()

Reported using DrKonqi