Application: kontact (4.6 beta4)
KDE Platform Version: 4.5.95 (4.6 RC2)
Qt Version: 4.7.0
Operating System: Linux 2.6.37-CHAKRA x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
goto calendar
click file -> archive old entries
mark automatically archive items older than
give in archive file:
click archive
contact crash

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f30f1972760 (LWP 4472))]

Thread 3 (Thread 0x7f30d9b48710 (LWP 4473)):
#0  0x00007f30e9caf40c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f30ee33b574 in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib/libQtWebKit.so.4
#2  0x00007f30ee33b5a9 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib/libQtWebKit.so.4
#3  0x00007f30e9caacb0 in start_thread () from /lib/libpthread.so.0
#4  0x00007f30eee849fd in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f30cde0d710 (LWP 4516)):
#0  0x00007f30eee7c173 in poll () from /lib/libc.so.6
#1  0x00007f30e977d174 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f30e977d6ad in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f30ef5b8786 in QEventDispatcherGlib::processEvents (this=0x207a980, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007f30ef588f82 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f30ef5891cc in QEventLoop::exec (this=0x7f30cde0cde0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f30ef4905c8 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f30ef568cf0 in QInotifyFileSystemWatcherEngine::run (this=0x204cf60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f30ef4931c7 in QThreadPrivate::start (arg=0x204cf60) at thread/qthread_unix.cpp:266
#9  0x00007f30e9caacb0 in start_thread () from /lib/libpthread.so.0
#10 0x00007f30eee849fd in clone () from /lib/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f30f1972760 (LWP 4472)):
[KCrash Handler]
#6  0x00007f30e6079b04 in QVector<QSharedPointer<KCalCore::Todo> >::erase(QSharedPointer<KCalCore::Todo>*, QSharedPointer<KCalCore::Todo>*) () from /usr/lib/libkcalcore.so.4
#7  0x00007f30e6094a62 in KCalCore::ICalFormatImpl::populate (this=0x224afb0, cal=..., calendar=0x21f47a0, deleted=false, notebook=<value optimized out>)
    at /home/manutortosa/desktop-testing/kdepimlibs/src/kdepimlibs-4.5.95/kcalcore/icalformat_p.cpp:2622
#8  0x00007f30e60839fb in KCalCore::ICalFormat::fromRawString (this=0x21f7b50, cal=..., string=<value optimized out>, deleted=false, notebook=<value optimized out>)
    at /home/manutortosa/desktop-testing/kdepimlibs/src/kdepimlibs-4.5.95/kcalcore/icalformat.cpp:184
#9  0x00007f30e6083f85 in KCalCore::ICalFormat::load (this=0x21f7b50, calendar=..., fileName=...) at /home/manutortosa/desktop-testing/kdepimlibs/src/kdepimlibs-4.5.95/kcalcore/icalformat.cpp:97
#10 0x00007f30e607ed7b in KCalCore::FileStorage::load (this=0x7fff0ab93930) at /home/manutortosa/desktop-testing/kdepimlibs/src/kdepimlibs-4.5.95/kcalcore/filestorage.cpp:110
#11 0x00007f30d77e41b9 in CalendarSupport::EventArchiver::archiveIncidences (this=0x7fff0ab93fa0, calendar=<value optimized out>, changer=0x163dac0, limitDate=<value optimized out>, 
    widget=0x1ec2720, incidences=..., withGUI=true) at /home/manutortosa/desktop-testing/kdepim-beta/src/kdepim-4.5.94.1/calendarsupport/eventarchiver.cpp:196
#12 0x00007f30d77e58ac in CalendarSupport::EventArchiver::run (this=0x7fff0ab93fa0, calendar=0x163b4b0, changer=0x163dac0, limitDate=..., widget=0x1ec2720, withGUI=true, errorIfNone=false)
    at /home/manutortosa/desktop-testing/kdepim-beta/src/kdepim-4.5.94.1/calendarsupport/eventarchiver.cpp:135
#13 0x00007f30d77e5da8 in CalendarSupport::EventArchiver::runAuto (this=0x7fff0ab93fa0, calendar=0x163b4b0, changer=0x163dac0, widget=0x1ec2720, withGUI=true)
    at /home/manutortosa/desktop-testing/kdepim-beta/src/kdepim-4.5.94.1/calendarsupport/eventarchiver.cpp:85
#14 0x00007f30d77c1098 in CalendarSupport::ArchiveDialog::slotUser1 (this=0x1ec2720) at /home/manutortosa/desktop-testing/kdepim-beta/src/kdepim-4.5.94.1/calendarsupport/archivedialog.cpp:280
#15 0x00007f30d77c147c in CalendarSupport::ArchiveDialog::qt_metacall (this=0x1ec2720, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /home/manutortosa/desktop-testing/kdepim-beta/src/kdepim-4.5.94.1/calendarsupport/archivedialog.moc:85
#16 0x00007f30ef5a1bff in QMetaObject::activate (sender=0x1ec2720, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#17 0x00007f30f0c8446c in KDialog::slotButtonClicked(int) () from /usr/lib/libkdeui.so.5
#18 0x00007f30f0c84a32 in KDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#19 0x00007f30d77c1408 in CalendarSupport::ArchiveDialog::qt_metacall (this=0x1ec2720, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /home/manutortosa/desktop-testing/kdepim-beta/src/kdepim-4.5.94.1/calendarsupport/archivedialog.moc:77
#20 0x00007f30ef5a1bff in QMetaObject::activate (sender=0x1e1a470, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff0ab94300) at kernel/qobject.cpp:3280
#21 0x00007f30ef5a5d3e in QSignalMapper::mapped (this=<value optimized out>, _t1=4096) at .moc/debug-shared/moc_qsignalmapper.cpp:101
#22 0x00007f30ef5a5f65 in QSignalMapper::map (this=0x1e1a470, sender=0x12e1fc0) at kernel/qsignalmapper.cpp:266
#23 0x00007f30ef5a66b0 in QSignalMapper::qt_metacall (this=0x1e1a470, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fff0ab94470) at .moc/debug-shared/moc_qsignalmapper.cpp:87
#24 0x00007f30ef5a1bff in QMetaObject::activate (sender=0x12e1fc0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff0ab94470) at kernel/qobject.cpp:3280
#25 0x00007f30f0642fe2 in QAbstractButton::clicked (this=<value optimized out>, _t1=false) at .moc/debug-shared/moc_qabstractbutton.cpp:206
#26 0x00007f30f033f21b in QAbstractButtonPrivate::emitClicked (this=<value optimized out>) at widgets/qabstractbutton.cpp:546
#27 0x00007f30f03408db in QAbstractButtonPrivate::click (this=0x2124470) at widgets/qabstractbutton.cpp:539
#28 0x00007f30f0340b4c in QAbstractButton::mouseReleaseEvent (this=0x12e1fc0, e=0x7fff0ab94f70) at widgets/qabstractbutton.cpp:1121
#29 0x00007f30effb8144 in QWidget::event (this=0x12e1fc0, event=0x7fff0ab94f70) at kernel/qwidget.cpp:8187
#30 0x00007f30eff5f2f4 in QApplicationPrivate::notify_helper (this=0xc2e8e0, receiver=0x12e1fc0, e=0x7fff0ab94f70) at kernel/qapplication.cpp:4397
#31 0x00007f30eff65038 in QApplication::notify (this=<value optimized out>, receiver=0x12e1fc0, e=0x7fff0ab94f70) at kernel/qapplication.cpp:3960
#32 0x00007f30f0d29596 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#33 0x00007f30ef58a4ec in QCoreApplication::notifyInternal (this=0x7fff0ab95ad0, receiver=0x12e1fc0, event=0x7fff0ab94f70) at kernel/qcoreapplication.cpp:732
#34 0x00007f30eff6072b in QCoreApplication::sendEvent (receiver=0x12e1fc0, event=0x7fff0ab94f70, alienWidget=0x12e1fc0, nativeWidget=0x1e8b470, buttonDown=0x7f30f0ad4078, lastMouseReceiver=..., 
    spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#35 QApplicationPrivate::sendMouseEvent (receiver=0x12e1fc0, event=0x7fff0ab94f70, alienWidget=0x12e1fc0, nativeWidget=0x1e8b470, buttonDown=0x7f30f0ad4078, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:3059
#36 0x00007f30effe79f8 in QETWidget::translateMouseEvent (this=0x1e8b470, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#37 0x00007f30effe60b9 in QApplication::x11ProcessEvent (this=0x7fff0ab95ad0, event=0x7fff0ab95720) at kernel/qapplication_x11.cpp:3536
#38 0x00007f30f000ed02 in x11EventSourceDispatch (s=0xc35e10, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0x00007f30e977cc33 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#40 0x00007f30e977d410 in ?? () from /usr/lib/libglib-2.0.so.0
#41 0x00007f30e977d6ad in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#42 0x00007f30ef5b872f in QEventDispatcherGlib::processEvents (this=0xbdcfa0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#43 0x00007f30f000e99e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#44 0x00007f30ef588f82 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#45 0x00007f30ef5891cc in QEventLoop::exec (this=0x7fff0ab95a20, flags=...) at kernel/qeventloop.cpp:201
#46 0x00007f30ef58e71b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#47 0x000000000040419f in main (argc=1, argv=0x7fff0ab960f8) at /home/manutortosa/desktop-testing/kdepim-beta/src/kdepim-4.5.94.1/kontact/src/main.cpp:218

Reported using DrKonqi