Application that crashed: kontact
Version of the application: 4.3.0
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-14-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I was not performing any function when the crash occured.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0xb791a02c in Kontact::Plugin::identifier (this=0x9e901f0) at /usr/include/qt4/QtCore/qstring.h:711
#7  0xb7933ff9 in Kontact::MainWindow::activatePluginModule (this=0x9bc7e98) at /build/buildd/kdepim-4.3.0/kontact/src/mainwindow.cpp:303
#8  0xb79340a4 in Kontact::MainWindow::setActivePluginModule (this=0x9bc7e98, module=@0xbfaa9164) at /build/buildd/kdepim-4.3.0/kontact/src/mainwindow.cpp:281
#9  0x0804ac57 in KontactApp::newInstance (this=0xbfaa9cc8) at /build/buildd/kdepim-4.3.0/kontact/src/main.cpp:147
#10 0xb6dd1c36 in KUniqueApplicationAdaptor::newInstance (this=0x9c2f9a8, asn_id=@0x9c7d260, args=@0xad7d1e0) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kuniqueapplication.cpp:459
#11 0xb6dd1cde in KUniqueApplicationAdaptor::qt_metacall (this=0x9c2f9a8, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfaa93b8)
    at /build/buildd/kde4libs-4.3.0/obj-i486-linux-gnu/kdeui/kuniqueapplication_p.moc:75
#12 0xb5e27e5a in QDBusConnectionPrivate::deliverCall (this=0x9bacce8, object=0x9c2f9a8, msg=@0xa0ff4c0, metaTypes=@0x9c4eb9c, slotIdx=4) at qdbusintegrator.cpp:891
#13 0xb5e29179 in QDBusConnectionPrivate::activateCall (this=0x9bacce8, object=0x9c2f9a8, flags=337, msg=@0xa0ff4c0) at qdbusintegrator.cpp:803
#14 0xb5e295e1 in QDBusConnectionPrivate::activateObject (this=0x9bacce8, node=@0xa0ff4ac, msg=@0xa0ff4c0, pathStartPos=16) at qdbusintegrator.cpp:1370
#15 0xb5e29ada in QDBusActivateObjectEvent::placeMetaCall (this=0xa0ff480) at qdbusintegrator.cpp:1464
#16 0xb5d203b0 in QObject::event (this=0xbfaa9cc8, e=0xa0ff480) at kernel/qobject.cpp:1111
#17 0xb5d0f56b in QCoreApplication::event (this=0xbfaa9cc8, e=0xa0ff480) at kernel/qcoreapplication.cpp:1434
#18 0xb61d6679 in QApplication::event (this=0xbfaa9cc8, e=0xa0ff480) at kernel/qapplication.cpp:2317
#19 0xb61d0d3c in QApplicationPrivate::notify_helper (this=0x9bc0ce0, receiver=0xbfaa9cc8, e=0xa0ff480) at kernel/qapplication.cpp:4056
#20 0xb61d903e in QApplication::notify (this=0xbfaa9cc8, receiver=0xbfaa9cc8, e=0xa0ff480) at kernel/qapplication.cpp:3603
#21 0xb6dca5cd in KApplication::notify (this=0xbfaa9cc8, receiver=0xbfaa9cc8, event=0xa0ff480) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kapplication.cpp:302
#22 0xb5d0fbcb in QCoreApplication::notifyInternal (this=0xbfaa9cc8, receiver=0xbfaa9cc8, event=0xa0ff480) at kernel/qcoreapplication.cpp:610
#23 0xb5d10825 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9b951e8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#24 0xb5d10a1d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#25 0xb5d3b6af in postEventSourceDispatch (s=0x9bb5690) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#26 0xb4de1b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb4de50eb in ?? () from /usr/lib/libglib-2.0.so.0
#28 0xb4de5268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0xb5d3b2f8 in QEventDispatcherGlib::processEvents (this=0x9bc3130, flags={i = -1079338088}) at kernel/qeventdispatcher_glib.cpp:327
#30 0xb6272a75 in QGuiEventDispatcherGlib::processEvents (this=0x9bc3130, flags={i = -1079338040}) at kernel/qguieventdispatcher_glib.cpp:202
#31 0xb5d0e1fa in QEventLoop::processEvents (this=0xbfaa9c40, flags={i = -1079337976}) at kernel/qeventloop.cpp:149
#32 0xb5d0e642 in QEventLoop::exec (this=0xbfaa9c40, flags={i = -1079337912}) at kernel/qeventloop.cpp:201
#33 0xb5d10ae9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0xb61d0bb7 in QApplication::exec () at kernel/qapplication.cpp:3525
#35 0x0804bfef in main (argc=1, argv=0xbfaa9fc4) at /build/buildd/kdepim-4.3.0/kontact/src/main.cpp:218

Reported using DrKonqi