Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-19-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Just closed Kontact (had only been using Mail)  Kontact reported couldn't get lock on something and crashed.  Opened and closed normally the next time.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb06d4a6750 (LWP 23737))]

Thread 2 (Thread 0x7fb04185f910 (LWP 29116)):
#0  0x00007fb0648225a9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fb06b10f4fb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007fb06634478c in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007fb06b10e445 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007fb06481da04 in start_thread () from /lib/libpthread.so.0
#5  0x00007fb06ab1080d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb06d4a6750 (LWP 23737)):
[KCrash Handler]
#5  0x00007fb06b1f4c10 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#6  0x00007fb06bb63c2a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#7  0x00007fb06bb14efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#8  0x00007fb06bb1c1ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#9  0x00007fb06c74bab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#10 0x00007fb06b1f4c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#11 0x00007fb06bb63c2a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#12 0x00007fb06bebf2a6 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#13 0x00007fb06bb14efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#14 0x00007fb06bb1c1ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#15 0x00007fb06c74bab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#16 0x00007fb06b1f4c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x00007fb06bb63c2a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x00007fb06bb14efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00007fb06bb1c1ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007fb06c74bab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#21 0x00007fb06b1f4c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#22 0x00007fb06bb63c2a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#23 0x00007fb06bb14efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#24 0x00007fb06bb1c1ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#25 0x00007fb06c74bab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#26 0x00007fb06b1f4c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#27 0x00007fb06bb63c2a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#28 0x00007fb06bed99db in QMainWindow::event(QEvent*) () from /usr/lib/libQtGui.so.4
#29 0x00007fb06c857773 in KXmlGuiWindow::event(QEvent*) () from /usr/lib/libkdeui.so.5
#30 0x00007fb06bb14efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#31 0x00007fb06bb1c1ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#32 0x00007fb06c74bab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#33 0x00007fb06b1f4c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#34 0x00007fb06bb1ab59 in QApplicationPrivate::enterModal(QWidget*) () from /usr/lib/libQtGui.so.4
#35 0x00007fb06bb68b85 in QWidgetPrivate::show_helper() () from /usr/lib/libQtGui.so.4
#36 0x00007fb06bb69bba in QWidget::setVisible(bool) () from /usr/lib/libQtGui.so.4
#37 0x00007fb06bf9067c in QDialog::setVisible(bool) () from /usr/lib/libQtGui.so.4
#38 0x00007fb06bf8f995 in QDialog::exec() () from /usr/lib/libQtGui.so.4
#39 0x00007fb06c6d2185 in KMessageBox::createKMessageBox(KDialog*, QIcon const&, QString const&, QStringList const&, QString const&, bool*, QFlags<KMessageBox::Option>, QString const&, QMessageBox::Icon) () from /usr/lib/libkdeui.so.5
#40 0x00007fb06c6d3400 in KMessageBox::createKMessageBox(KDialog*, QMessageBox::Icon, QString const&, QStringList const&, QString const&, bool*, QFlags<KMessageBox::Option>, QString const&) ()
   from /usr/lib/libkdeui.so.5
#41 0x00007fb06c6d42c3 in KMessageBox::errorListWId(unsigned long, QString const&, QStringList const&, QString const&, QFlags<KMessageBox::Option>) () from /usr/lib/libkdeui.so.5
#42 0x00007fb06c6d44c2 in KMessageBox::error(QWidget*, QString const&, QString const&, QFlags<KMessageBox::Option>) () from /usr/lib/libkdeui.so.5
#43 0x00007fb068545ffe in KABC::GuiErrorHandler::error(QString const&) () from /usr/lib/libkabc.so.4
#44 0x00007fb06852b6a9 in KABC::AddressBook::error(QString const&) () from /usr/lib/libkabc.so.4
#45 0x00007fb04cbcb745 in KABC::ResourceFile::requestSaveTicket() () from /usr/lib/libkabc_file_core.so.4
#46 0x00007fb068529b9e in KABC::AddressBook::requestSaveTicket(KABC::Resource*) () from /usr/lib/libkabc.so.4
#47 0x00007fb068555202 in KABC::StdAddressBook::Private::saveAll() () from /usr/lib/libkabc.so.4
#48 0x00007fb068555427 in KABC::StdAddressBook::~StdAddressBook() () from /usr/lib/libkabc.so.4
#49 0x00007fb068554656 in KABC::StdAddressBook::close() () from /usr/lib/libkabc.so.4
#50 0x00007fb03aac86d0 in KABCore::~KABCore() () from /usr/lib/libkaddressbookprivate.so.4
#51 0x00007fb06b202e5c in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#52 0x00007fb06bb5f4f3 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#53 0x00007fb06a80b594 in KParts::Part::~Part() () from /usr/lib/libkparts.so.4
#54 0x00007fb03ad422eb in ?? () from /usr/lib/kde4/kaddressbookpart.so
#55 0x00007fb06ce99dae in Kontact::Plugin::~Plugin() () from /usr/lib/libkontactinterfaces.so.4
#56 0x00007fb056427ca5 in ?? () from /usr/lib/kde4/kontact_kaddressbookplugin.so
#57 0x00007fb06d0bbe0f in Kontact::MainWindow::~MainWindow() () from /usr/lib/libkontactprivate.so.4
#58 0x00007fb06b20411d in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#59 0x00007fb06bb6315f in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#60 0x00007fb06bed99db in QMainWindow::event(QEvent*) () from /usr/lib/libQtGui.so.4
#61 0x00007fb06c857773 in KXmlGuiWindow::event(QEvent*) () from /usr/lib/libkdeui.so.5
#62 0x00007fb06bb14efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#63 0x00007fb06bb1c1ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#64 0x00007fb06c74bab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#65 0x00007fb06b1f4c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#66 0x00007fb06b1f580a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#67 0x00007fb06b21d533 in ?? () from /usr/lib/libQtCore.so.4
#68 0x00007fb064a6ebce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#69 0x00007fb064a72598 in ?? () from /lib/libglib-2.0.so.0
#70 0x00007fb064a726c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#71 0x00007fb06b21d1a6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#72 0x00007fb06bba94be in ?? () from /usr/lib/libQtGui.so.4
#73 0x00007fb06b1f3532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#74 0x00007fb06b1f3904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#75 0x00007fb06b1f5ab9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#76 0x0000000000403f47 in _start ()

This bug may be a duplicate of or related to bug 229660

Reported using DrKonqi