Version:           3.3.92 (using KDE 3.3.92 (beta2), Gentoo)
Compiler:          gcc version 3.3.4 20040623 (Gentoo Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)
OS:                Linux (i686) release 2.6.10-gentoo-r7y

If I start konqueror as web browser and then I click the home button it crashes. It happens as well as root and as user.

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 29023)]
[KCrash handler]
#5  0x41993fd1 in kill () from /lib/libc.so.6
#6  0x4180bc81 in pthread_kill () from /lib/libpthread.so.0
#7  0x4180bffb in raise () from /lib/libpthread.so.0
#8  0x41993c04 in raise () from /lib/libc.so.6
#9  0x419953bd in abort () from /lib/libc.so.6
#10 0x40a2ca8b in KIconFactory::createPixmap(QIconSet const&, QIconSet::Size, QIconSet::Mode, QIconSet::State) () from /usr/kde/cvs/lib/libkdecore.so.4
#11 0x40f062e8 in QIconSetPrivate::icon(QIconSet const*, QIconSet::Size, QIconSet::Mode, QIconSet::State) (this=0x83f4010, iconSet=0xbfffe3a0, size=Small, 
    mode=Active, state=Off) at kernel/qiconset.cpp:195
#12 0x40f06af5 in QIconSet::pixmap(QIconSet::Size, QIconSet::Mode, QIconSet::State) const (this=0xbfffe3a0, size=Small, mode=Active, state=Off)
    at kernel/qiconset.cpp:520
#13 0x407cc884 in KToolBarButton::drawButton(QPainter*) ()
   from /usr/kde/cvs/lib/libkdeui.so.4
#14 0x40ff721d in QButton::paintEvent(QPaintEvent*) (this=0x832a6c8)
    at widgets/qbutton.cpp:887
#15 0x40f8c2b5 in QWidget::event(QEvent*) (this=0x832a6c8, e=0xbfffe820)
    at kernel/qwidget.cpp:4779
#16 0x40ed8a75 in QApplication::internalNotify(QObject*, QEvent*) (
    this=0xbffff3b0, receiver=0x832a6c8, e=0xbfffe820)
    at kernel/qapplication.cpp:2635
#17 0x40ed86e7 in QApplication::notify(QObject*, QEvent*) (this=0xbffff3b0, 
    receiver=0x832a6c8, e=0xbfffe820) at kernel/qapplication.cpp:2523
#18 0x409c3ddc in KApplication::notify(QObject*, QEvent*) ()
   from /usr/kde/cvs/lib/libkdecore.so.4
#19 0x40091c85 in QApplication::sendEvent(QObject*, QEvent*) (receiver=0x0, 
    event=0x6) at qapplication.h:491
#20 0x40e9a4b2 in QWidget::repaint(int, int, int, int, bool) (this=0x832a6c8, 
    x=0, y=0, w=48, h=37, erase=false) at kernel/qwidget_x11.cpp:1594
#21 0x40747045 in QWidget::repaint(QRect const&, bool) ()
   from /usr/kde/cvs/lib/libkdeui.so.4
#22 0x40f8d839 in QWidget::repaint(bool) (this=0x832a6c8, erase=false)
    at kernel/qwidget.cpp:6006
#23 0x407cb61e in KToolBarButton::enterEvent(QEvent*) ()
   from /usr/kde/cvs/lib/libkdeui.so.4
#24 0x40f8c273 in QWidget::event(QEvent*) (this=0x832a6c8, e=0xbfffec40)
    at kernel/qwidget.cpp:4768
#25 0x40ed8a75 in QApplication::internalNotify(QObject*, QEvent*) (
    this=0xbffff3b0, receiver=0x832a6c8, e=0xbfffec40)
    at kernel/qapplication.cpp:2635
#26 0x40ed86e7 in QApplication::notify(QObject*, QEvent*) (this=0xbffff3b0, 
    receiver=0x832a6c8, e=0xbfffec40) at kernel/qapplication.cpp:2523
#27 0x409c3ddc in KApplication::notify(QObject*, QEvent*) ()
   from /usr/kde/cvs/lib/libkdecore.so.4
#28 0x40091c85 in QApplication::sendEvent(QObject*, QEvent*) (receiver=0x0, 
    event=0x6) at qapplication.h:491
#29 0x40eda82e in qt_dispatchEnterLeave(QWidget*, QWidget*) (enter=0x832a6c8, 
    leave=0x82438f8) at kernel/qapplication.cpp:3609
#30 0x40e56c6c in QApplication::x11ProcessEvent(_XEvent*) (this=0xbffff3b0, 
    event=0xbfffefc0) at kernel/qapplication_x11.cpp:3606
#31 0x40e73ced in QEventLoop::processEvents(unsigned) (this=0x8146c88, flags=4)
    at kernel/qeventloop_x11.cpp:192
#32 0x40eefe99 in QEventLoop::enterLoop() (this=0x8146c88)
    at kernel/qeventloop.cpp:198
#33 0x40eefdb2 in QEventLoop::exec() (this=0x8146c88)
    at kernel/qeventloop.cpp:145
#34 0x40ed8c17 in QApplication::exec() (this=0xbffff3b0)
    at kernel/qapplication.cpp:2758
#35 0x4007a572 in kdemain (argc=0, argv=0x0) at konq_main.cc:206
#36 0x0804871b in main (argc=0, argv=0x0) at konqueror.la.cc:2