Application that crashed: kmail
Version of the application: 1.12.90
KDE Version: 4.3.61 (KDE 4.3.61 (KDE 4.4 >= 20090717))
Qt Version: 4.5.2
Operating System: Linux 2.6.31-rc4 i686

What I was doing when the application crashed:
When right-clicking on a selected text the program crashes. This happens in kmail and kopete.

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#6  KHTMLPopupGUIClient::addSearchActions (this=0x9555958, editActions=@0xbff22938) at /usr/include/qt4/QtCore/qatomic_i386.h:120
#7  0xb5a5d55d in KHTMLPopupGUIClient (this=0x9555958, khtml=0x95999b0, url=@0xbff22a74) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/khtml/khtml_ext.cpp:429
#8  0xb5a17137 in KHTMLPart::popupMenu (this=0x95999b0, linkUrl=@0x95c9614) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/khtml/khtml_part.cpp:4844
#9  0xb5a18692 in KHTMLPart::khtmlMousePressEvent (this=0x95999b0, event=0xbff23024) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/khtml/khtml_part.cpp:6168
#10 0xb5a0223f in KHTMLPart::customEvent (this=0x95999b0, event=0xbff23024) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/khtml/khtml_part.cpp:5921
#11 0xb66fb0fc in QObject::event (this=0x95999b0, e=0xbff23024) at kernel/qobject.cpp:1133
#12 0xb68d112c in QApplicationPrivate::notify_helper (this=0x92df068, receiver=0x95999b0, e=0xbff23024) at kernel/qapplication.cpp:4056
#13 0xb68d73e5 in QApplication::notify (this=0xbff25190, receiver=0x95999b0, e=0xbff23024) at kernel/qapplication.cpp:3603
#14 0xb7da3fa1 in KApplication::notify (this=0xbff25190, receiver=0x95999b0, event=0xbff23024) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/kdeui/kernel/kapplication.cpp:302
#15 0xb66ec03f in QCoreApplication::notifyInternal (this=0xbff25190, receiver=0x95999b0, event=0xbff23024) at kernel/qcoreapplication.cpp:606
#16 0xb59f5dd4 in KHTMLView::mousePressEvent (this=0x95c24b8, _mouse=0xbff23024) at /usr/include/qt4/QtCore/qcoreapplication.h:213
#17 0xb692819f in QWidget::event (this=0x95c24b8, event=0xbff239d4) at kernel/qwidget.cpp:7545
#18 0xb6c88075 in QFrame::event (this=0x95c24b8, e=0xbff239d4) at widgets/qframe.cpp:559
#19 0xb59f041c in KHTMLView::widgetEvent (this=0x95c24b8, e=0x2500da) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/khtml/khtmlview.cpp:2325
#20 0xb59f06f6 in KHTMLView::eventFilter (this=0x95c24b8, o=0x95c7300, e=0xbff239d4) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/khtml/khtmlview.cpp:2189
#21 0xb66eb1d0 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x92df068, receiver=0x95c7300, event=0xbff239d4) at kernel/qcoreapplication.cpp:726
#22 0xb68d10ff in QApplicationPrivate::notify_helper (this=0x92df068, receiver=0x95c7300, e=0xbff239d4) at kernel/qapplication.cpp:4052
#23 0xb68d7d0d in QApplication::notify (this=0xbff25190, receiver=0x95c7300, e=0xbff239d4) at kernel/qapplication.cpp:3758
#24 0xb7da3fa1 in KApplication::notify (this=0xbff25190, receiver=0x95c7300, event=0xbff239d4) at /var/tmp/portage/kde-base/kdelibs-9999/work/kdelibs-9999/kdeui/kernel/kapplication.cpp:302
#25 0xb66ec03f in QCoreApplication::notifyInternal (this=0xbff25190, receiver=0x95c7300, event=0xbff239d4) at kernel/qcoreapplication.cpp:606
#26 0xb68d9416 in QApplicationPrivate::sendMouseEvent (receiver=0x95c7300, event=0xbff239d4, alienWidget=0x95c7300, nativeWidget=0x92d9100, buttonDown=0xb706f9e0, lastMouseReceiver=@0xb706f9e4)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#27 0xb693ea99 in QETWidget::translateMouseEvent (this=0x92d9100, event=0xbff24f3c) at kernel/qapplication_x11.cpp:4409
#28 0xb693d4b1 in QApplication::x11ProcessEvent (this=0xbff25190, event=0xbff24f3c) at kernel/qapplication_x11.cpp:3550
#29 0xb6965fd7 in QEventDispatcherX11::processEvents (this=0x92debb0, flags={i = 36}) at kernel/qeventdispatcher_x11.cpp:132
#30 0xb66ea719 in QEventLoop::processEvents (this=0xbff25074, flags=) at kernel/qeventloop.cpp:149
#31 0xb66ea8fa in QEventLoop::exec (this=0xbff25074, flags={i = 0}) at kernel/qeventloop.cpp:197
#32 0xb66ec987 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#33 0xb68d0f94 in QApplication::exec () at kernel/qapplication.cpp:3525
#34 0x0804a71d in main (argc=3, argv=0xbff25334) at /var/tmp/portage/kde-base/kmail-9999/work/kmail-9999/kmail/main.cpp:146

Reported using DrKonqi