Application: kontact (4.4.5)
KDE Platform Version: 4.4.4 (KDE 4.4.4) "release 2"
Qt Version: 4.6.3
Operating System: Linux 2.6.34-12-desktop x86_64
Distribution: "openSUSE 11.3 (x86_64)"

-- Information about the crash:
every time, when I closed "Kontact", crashed the programm

The crash can be reproduced every time.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f6d303ff313 in QObject::disconnect (sender=0x1016870, signal=0xe2a2a9 "progressItemCanceled(KPIM::ProgressItem*)", receiver=0xb8edb0, method=0x9be639 "slotAbortRequested()")
    at kernel/qobject.cpp:2747
#6  0x00007f6d17885972 in KMail::PopAccount::slotAbortRequested (this=0xb8edb0) at /usr/src/debug/kdepim-4.4.4/kmail/popaccount.cpp:354
#7  0x00007f6d177ca8b0 in KMail::AccountManager::cancelMailCheck (this=0xb3c4e0) at /usr/src/debug/kdepim-4.4.4/kmail/accountmanager.cpp:427
#8  0x00007f6d17ea187e in KMailPart::~KMailPart (this=0x85cf80, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at /usr/src/debug/kdepim-4.4.4/kmail/kmail_part.cpp:140
#9  0x00007f6d17ea1999 in KMailPart::~KMailPart (this=0x85cf80, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at /usr/src/debug/kdepim-4.4.4/kmail/kmail_part.cpp:146
#10 0x00007f6d3150785e in KontactInterface::Plugin::~Plugin() () from /usr/lib64/libkontactinterface.so.4
#11 0x00007f6d18bf7166 in KMailPlugin::~KMailPlugin (this=0x9a8190, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>)
    at /usr/src/debug/kdepim-4.4.4/kontact/plugins/kmail/kmail_plugin.cpp:157
#12 0x00007f6d18bf7189 in KMailPlugin::~KMailPlugin (this=0x9a8190, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>)
    at /usr/src/debug/kdepim-4.4.4/kontact/plugins/kmail/kmail_plugin.cpp:159
#13 0x00007f6d31a9cb1e in Kontact::MainWindow::~MainWindow() () from /usr/lib64/libkontactprivate.so.4
#14 0x00007f6d31a9cc89 in Kontact::MainWindow::~MainWindow() () from /usr/lib64/libkontactprivate.so.4
#15 0x00007f6d303fd52d in QObject::event (this=0x8c5840, e=0xf0ecf0) at kernel/qobject.cpp:1231
#16 0x00007f6d2f82d76d in QWidget::event (this=0x8c5840, event=0xf0ecf0) at kernel/qwidget.cpp:8501
#17 0x00007f6d2fbd9a6b in QMainWindow::event (this=0x8c5840, event=0xf0ecf0) at widgets/qmainwindow.cpp:1414
#18 0x00007f6d30d4c4a3 in KXmlGuiWindow::event (this=0x8c5840, ev=0xf0ecf0) at /usr/src/debug/kdelibs-4.4.4/kdeui/xmlgui/kxmlguiwindow.cpp:131
#19 0x00007f6d2f7dd4d4 in QApplicationPrivate::notify_helper (this=0x63e6b0, receiver=0x8c5840, e=0xf0ecf0) at kernel/qapplication.cpp:4302
#20 0x00007f6d2f7e5aca in QApplication::notify (this=<value optimized out>, receiver=0x8c5840, e=0xf0ecf0) at kernel/qapplication.cpp:4185
#21 0x00007f6d30ccec06 in KApplication::notify (this=0x7fff95b58eb0, receiver=0x8c5840, event=0xf0ecf0) at /usr/src/debug/kdelibs-4.4.4/kdeui/kernel/kapplication.cpp:302
#22 0x00007f6d303ebe4c in QCoreApplication::notifyInternal (this=0x7fff95b58eb0, receiver=0x8c5840, event=0xf0ecf0) at kernel/qcoreapplication.cpp:726
#23 0x00007f6d303ef5ba in sendEvent (receiver=0x0, event_type=0, data=0x60db90) at kernel/qcoreapplication.h:215
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x60db90) at kernel/qcoreapplication.cpp:1367
#25 0x00007f6d30414173 in sendPostedEvents (s=<value optimized out>) at kernel/qcoreapplication.h:220
#26 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#27 0x00007f6d27f15a93 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#28 0x00007f6d27f16270 in ?? () from /usr/lib64/libglib-2.0.so.0
#29 0x00007f6d27f16510 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#30 0x00007f6d3041467f in QEventDispatcherGlib::processEvents (this=0x613220, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#31 0x00007f6d2f87e14e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x00007f6d303eb292 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#33 0x00007f6d303eb495 in QEventLoop::exec (this=0x7fff95b58e00, flags=...) at kernel/qeventloop.cpp:201
#34 0x00007f6d303ef88b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#35 0x000000000040417e in _start ()

Reported using DrKonqi