Version:            (using KDE KDE 3.3.0)
Installed from:    Compiled From Sources
Compiler:          GCC 3.4.2 
OS:                Linux

When Konqueror is running, changing the active theme or style, or changing certain settings within the style causes Konqueror to crash. Here is a stack trace:

[New Thread 16384 (LWP 32043)]
[KCrash handler]
#4  0x41669b71 in kill () from /lib/i686/libc.so.6
#5  0x414d7cf1 in pthread_kill () from /lib/i686/libpthread.so.0
#6  0x414d800b in raise () from /lib/i686/libpthread.so.0
#7  0x41669904 in raise () from /lib/i686/libc.so.6
#8  0x4166ae8c in abort () from /lib/i686/libc.so.6
#9  0x41662e84 in __assert_fail () from /lib/i686/libc.so.6
#10 0x408555d5 in KInstance::iconLoader() const (this=0x82fbf88)
    at kinstance.cpp:239
#11 0x40539110 in KToolBarButton::setIcon(QString const&) (this=0x83b1b30, 
    icon=@0x0) at ktoolbarbutton.cpp:286
#12 0x405386d8 in KToolBarButton::modeChange() (this=0x83b1b30)
    at ktoolbarbutton.cpp:190
#13 0x4053afb3 in KToolBarButton::qt_invoke(int, QUObject*) (this=0x83b1b30, 
    _id=60, _o=0xbfffe800) at ktoolbarbutton.moc:178
#14 0x40c34d5d in QObject::activate_signal(QConnectionList*, QUObject*) ()
   from /usr/local/qt/lib/libqt-mt.so.3
#15 0x40c354f2 in QObject::activate_signal(int) ()
   from /usr/local/qt/lib/libqt-mt.so.3
#16 0x404e3a61 in KToolBar::modechange() (this=0x0) at ktoolbar.moc:344
#17 0x40588efe in KToolBar::doModeChange() (this=0xbfffe814)
    at ktoolbar.cpp:1218
#18 0x40588f7e in KToolBar::slotIconChanged(int) (this=0xbfffe800, 
    group=1095620236) at ktoolbar.cpp:1454
#19 0x40605b7d in KToolBar::qt_invoke(int, QUObject*) (this=0x83b2410, _id=56, 
    _o=0xbfffe940) at ktoolbar.moc:360
#20 0x40c34d5d in QObject::activate_signal(QConnectionList*, QUObject*) ()
   from /usr/local/qt/lib/libqt-mt.so.3
#21 0x40c3539a in QObject::activate_signal(int, int) ()
   from /usr/local/qt/lib/libqt-mt.so.3
#22 0x4079aab8 in KApplication::iconChanged(int) (this=0x0, t0=1095620236)
    at kapplication.moc:203
#23 0x40855346 in KApplication::x11EventFilter(_XEvent*) (this=0xbfffe940, 
    _event=0xbfffe968) at kapplication.cpp:1667
#24 0x40b5d995 in qt_x11EventFilter(_XEvent*) ()
   from /usr/local/qt/lib/libqt-mt.so.3
#25 0x40b6aef8 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/local/qt/lib/libqt-mt.so.3
#26 0x40b7eba6 in QEventLoop::processEvents(unsigned) ()
   from /usr/local/qt/lib/libqt-mt.so.3
#27 0x40be82c0 in QEventLoop::enterLoop() ()
   from /usr/local/qt/lib/libqt-mt.so.3
#28 0x40be8216 in QEventLoop::exec() () from /usr/local/qt/lib/libqt-mt.so.3
#29 0x40bd0f8f in QApplication::exec() () from /usr/local/qt/lib/libqt-mt.so.3
#30 0x4195ad33 in kdemain (argc=0, argv=0x0) at konq_main.cc:204
#31 0x4095c964 in kdeinitmain (argc=0, argv=0x0) at konqueror_dummy.cc:2
#32 0x0804f5d9 in launch (argc=2, _name=0x80dc63c "konqueror", 
    args=0x80dc650 "", cwd=0x0, envc=0, envs=0x80dc654 "", reset_env=false, 
    tty=0x0, avoid_loops=false, startup_id_str=0x0) at kinit.cpp:599
#33 0x0804fd3f in handle_launcher_request (sock=8) at kinit.cpp:1163
#34 0x080502f7 in handle_requests (waitForPid=0) at kinit.cpp:1364
#35 0x0805096b in main (argc=3, argv=0xbffff784, envp=0x0) at kinit.cpp:1817