Version:           4.0.85 (using Devel)
Installed from:    Compiled sources

When selecting the Search Options tab on the left, a dialop appears asking if a search index shall be created. If I now choose Create, KHelpcenter crashes with the following backtrace:

Application: KDE-Helpcenter (khelpcenter), Signal SIGSEGV
[Thread debugging using libthread_db enabled]
[New Thread 0xb5599940 (LWP 8692)]
[New Thread 0xb26fab90 (LWP 8693)]
[KCrash handler]
#6  0xb5d69f40 in QLayout::activate () from /usr/lib/libQtGui.so.4
#7  0xb7ed7097 in IndexProgressDialog::hideDetails (this=0x83da988)
    at /home/compiler/kde/src/KDE/base/runtime/khelpcenter/kcmhelpcenter.cpp:216
#8  0xb7ed824d in IndexProgressDialog (this=0x83da988, parent=0x83f7e80)
    at /home/compiler/kde/src/KDE/base/runtime/khelpcenter/kcmhelpcenter.cpp:129
#9  0xb7ed8d08 in KCMHelpCenter::buildIndex (this=0x83f7e80)
    at /home/compiler/kde/src/KDE/base/runtime/khelpcenter/kcmhelpcenter.cpp:453
#10 0xb7ed8e32 in KCMHelpCenter::slotOk (this=0x83f7e80)
    at /home/compiler/kde/src/KDE/base/runtime/khelpcenter/kcmhelpcenter.cpp:637
#11 0xb7ed9963 in KCMHelpCenter::qt_metacall (this=0x83f7e80, 
    _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfa095b8)
    at /home/compiler/kde/build/KDE/base/runtime/khelpcenter/kcmhelpcenter.moc:221
#12 0xb6fe2090 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#13 0xb6fe2e12 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#14 0xb75aaed7 in KDialog::okClicked (this=0x83f7e80)
    at /home/compiler/kde/build/KDE/g_libs/kdeui/kdialog.moc:247
#15 0xb75ac55d in KDialog::slotButtonClicked (this=0x83f7e80, button=4)
    at /home/compiler/kde/src/KDE/g_libs/kdeui/dialogs/kdialog.cpp:844
#16 0xb75ae7f4 in KDialog::qt_metacall (this=0x83f7e80, 
    _c=QMetaObject::InvokeMetaMethod, _id=33, _a=0xbfa0977c)
    at /home/compiler/kde/build/KDE/g_libs/kdeui/kdialog.moc:181
#17 0xb7ed983a in KCMHelpCenter::qt_metacall (this=0x83f7e80, 
    _c=QMetaObject::InvokeMetaMethod, _id=68, _a=0xbfa0977c)
    at /home/compiler/kde/build/KDE/base/runtime/khelpcenter/kcmhelpcenter.moc:206
#18 0xb6fe2090 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#19 0xb6fe2e12 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#20 0xb6fe5f23 in QSignalMapper::mapped () from /usr/lib/libQtCore.so.4
#21 0xb6fe67ad in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#22 0xb6fe699e in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#23 0xb6fe726b in QSignalMapper::qt_metacall () from /usr/lib/libQtCore.so.4
#24 0xb6fe2090 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#25 0xb6fe2490 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#26 0xb631dda1 in QAbstractButton::clicked () from /usr/lib/libQtGui.so.4
#27 0xb6073789 in ?? () from /usr/lib/libQtGui.so.4
#28 0xb60752f4 in ?? () from /usr/lib/libQtGui.so.4
#29 0xb6075586 in QAbstractButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#30 0xb5d944f2 in QWidget::event () from /usr/lib/libQtGui.so.4
#31 0xb607362e in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#32 0xb6119570 in QPushButton::event () from /usr/lib/libQtGui.so.4
#33 0xb5d3c66c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#34 0xb5d44df1 in QApplication::notify () from /usr/lib/libQtGui.so.4
#35 0xb7639531 in KApplication::notify (this=0xbfa0a7a4, receiver=0x83f11c0, 
    event=0xbfa09f9c)
    at /home/compiler/kde/src/KDE/g_libs/kdeui/kernel/kapplication.cpp:311
#36 0xb6fcd541 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#37 0xb5d4407e in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#38 0xb5dad5fd in ?? () from /usr/lib/libQtGui.so.4
#39 0xb5dac3cf in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#40 0xb5dd5d14 in ?? () from /usr/lib/libQtGui.so.4
#41 0xb5744278 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#42 0xb5747913 in ?? () from /usr/lib/libglib-2.0.so.0
#43 0x0805cc38 in ?? ()
#44 0x00000000 in ?? ()
#0  0xb7ef1424 in __kernel_vsyscall ()