Application that crashed: kopete
Version of the application: 0.70.90
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.30-2-686 i686

What I was doing when the application crashed:
I picked right click -> show history and "close" button after that.

 -- Backtrace:
Application: Kopete (kopete), signal: Segmentation fault
[Current thread is 1 (Thread 0xb56c9700 (LWP 20678))]

Thread 2 (Thread 0xb3f10b90 (LWP 20684)):
#0  0xb7ff3424 in __kernel_vsyscall ()
#1  0xb5cc9f65 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/cmov/libpthread.so.0
#2  0xb67a285d in pthread_cond_wait () from /lib/i686/cmov/libc.so.6
#3  0xb73175c2 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0xb5fb6a9a in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb73165e2 in ?? () from /usr/lib/libQtCore.so.4
#6  0xb5cc64b5 in start_thread () from /lib/i686/cmov/libpthread.so.0
#7  0xb6793a5e in clone () from /lib/i686/cmov/libc.so.6

Thread 1 (Thread 0xb56c9700 (LWP 20678)):
[KCrash Handler]
#6  0xb4a43e62 in KHTMLPart::~KHTMLPart() () from /usr/lib/libkhtml.so.5
#7  0xb5b71d4e in KParts::Part::slotWidgetDestroyed() () from /usr/lib/libkparts.so.4
#8  0xb5b71e6b in KParts::Part::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkparts.so.4
#9  0xb5b71eca in KParts::ReadOnlyPart::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkparts.so.4
#10 0xb4a4c3ba in KHTMLPart::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkhtml.so.5
#11 0xb741c303 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#12 0xb741c720 in QMetaObject::activate(QObject*, QMetaObject const*, int, int, void**) () from /usr/lib/libQtCore.so.4
#13 0xb741c7ab in QObject::destroyed(QObject*) () from /usr/lib/libQtCore.so.4
#14 0xb741d5b9 in QObject::~QObject() () from /usr/lib/libQtCore.so.4
#15 0xb6a984bf in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#16 0xb741604f in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#17 0xb6a982db in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#18 0xb741604f in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#19 0xb6a97ceb in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#20 0xb6e42881 in QFrame::~QFrame() () from /usr/lib/libQtGui.so.4
#21 0xb6eaae8b in QSplitter::~QSplitter() () from /usr/lib/libQtGui.so.4
#22 0xb741604f in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#23 0xb6a982db in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#24 0xb741604f in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#25 0xb6a97ceb in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#26 0xb6f28be6 in QDialog::~QDialog() () from /usr/lib/libQtGui.so.4
#27 0xb78e4fb4 in KDialog::~KDialog() () from /usr/lib/libkdeui.so.5
#28 0xb47ebb21 in ?? () from /usr/lib/kde4/kopete_history.so
#29 0xb7415d35 in qDeleteInEventHandler(QObject*) () from /usr/lib/libQtCore.so.4
#30 0xb741760b in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#31 0xb6a9c300 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#32 0xb6a46a94 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#33 0xb6a4ecc2 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#34 0xb797d0fd in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#35 0xb74071eb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#36 0xb7407e2e in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#37 0xb740800d in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#38 0xb74324cf in ?? () from /usr/lib/libQtCore.so.4
#39 0xb5d13e98 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#40 0xb5d17623 in ?? () from /lib/libglib-2.0.so.0
#41 0xb5d177a8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#42 0xb7432041 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#43 0xb6ae6305 in ?? () from /usr/lib/libQtGui.so.4
#44 0xb740583a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#45 0xb7405c82 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#46 0xb74080d9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#47 0xb6a46917 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#48 0x08059653 in _start ()

Reported using DrKonqi