konqueror segfault when clearing history

[Guybrush88]

on kubuntu 9.10 every time i want to clear history i get this message:
Application: Modulo di controllo di KDE (kcmshell4), signal: Segmentation fault
[KCrash Handler]
#6 0x00f4ced7 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#7 0x04972b17 in ?? () from /usr/lib/libkonq.so.5
#8 0x07cb14d5 in ?? () from /usr/lib/kde4/kcm_history.so
#9 0x07cb1913 in ?? () from /usr/lib/kde4/kcm_history.so
#10 0x00f4c263 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#11 0x00f4c6d8 in QMetaObject::activate(QObject*, QMetaObject const*, int, int, void**) () from /usr/lib/libQtCore.so.4
#12 0x07a26cc1 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#13 0x0774f549 in ?? () from /usr/lib/libQtGui.so.4
#14 0x077511a4 in ?? () from /usr/lib/libQtGui.so.4
#15 0x07751431 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#16 0x073ef012 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#17 0x0774f3ee in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x077f966d in QPushButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x07399f54 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x073a2033 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#21 0x007ad25a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#22 0x00f366cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#23 0x073a0f6e in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#24 0x0740f7c0 in ?? () from /usr/lib/libQtGui.so.4
#25 0x0740ec4b in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#26 0x0743b502 in ?? () from /usr/lib/libQtGui.so.4
#27 0x05191e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0x05195730 in ?? () from /lib/libglib-2.0.so.0
#29 0x05195863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0x00f6102c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x0743abe5 in ?? () from /usr/lib/libQtGui.so.4
#32 0x00f34c79 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#33 0x00f350ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0x07886d53 in QDialog::exec() () from /usr/lib/libQtGui.so.4
#35 0x00584f8e in kdemain () from /usr/lib/libkdeinit4_kcmshell4.so
#36 0x0804865b in _start ()

[Monkey (monkey-libre)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage . I have classified this bug as a bug in konqueror.
For future reference you might be interested to know that a lot of applications have bug reporting functionality built in to them. This can be accessed via the Report a Problem option in the Help menu for the application with which you are having an issue. You can learn more about this feature at https://wiki.ubuntu.com/ReportingBugs.

[Daniel Hahler (blueyed)]

So, I've typed a long comment. Launchpad ate it. Here are the important things:
 - not reproducible on Lucid (KDE 4.4.1)
 - are you using the button in the configure dialog?
 - take a look at ~/.kde/share/apps/konqueror/konq_history* - try moving it away (with konqueror being closed). Is the history cleared when restarting konqueror?
 - if it's cleared by moving the files away: does clicking the button still cause a crash?
 - if so, install kdebase-dbg, which should result in a better backtrace.

[Jonathan Thomas (echidnaman)]

This was fixed in KDE 4.4, iirc.