Application that crashed: konqueror
Version of the application: 4.2.87 (KDE 4.2.87 (KDE 4.3 >= 20090519))
KDE Version: 4.2.87 (KDE 4.2.87 (KDE 4.3 >= 20090519))
Qt Version: 4.5.1
Operating System: Linux 2.6.30-rc6 i686

What I was doing when the application crashed:
Gentoo i686
gcc-4.3.2
glibc-2.8_p20080602-r1
vanilla kernel 2.6.30-rc6
kde-4.2.87

This happend second time on asus site (support.asus.com) when I tried to download some drivers and hit [back] button.

Don't know if it's usefull information but I have no flash plugin installed.

 -- Backtrace:
Application: Konqueror (kdeinit), signal: Segmentation fault
[KCrash Handler]
#6  0xb7ebefdb in QString::operator== (this=0xbccb2a4, other=@0xaad69dc) at tools/qstring.cpp:1910
#7  0xb34e05a4 in QString::operator!= (this=0xbccb2a4, s=@0xaad69dc) at /usr/include/qt4/QtCore/qstring.h:400
#8  0xb34d54a0 in KHTMLPart::restoreState (this=0xb9840d8, stream=@0xbfeb4cd8) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/khtml/khtml_part.cpp:5406
#9  0xb34f5a2e in KHTMLPartBrowserExtension::restoreState (this=0xb4bedf0, stream=@0xbfeb4cd8) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/khtml/khtml_ext.cpp:104
#10 0xb511b87e in KonqView::restoreHistory (this=0xaadf878) at /var/tmp/portage/kde-base/konqueror-4.2.87/work/konqueror-4.2.87/konqueror/src/konqview.cpp:871
#11 0xb5166dd8 in KonqMainWindow::slotGoHistoryDelayed (this=0x9ffb3e8) at /var/tmp/portage/kde-base/konqueror-4.2.87/work/konqueror-4.2.87/konqueror/src/konqmainwindow.cpp:2821
#12 0xb516cc57 in KonqMainWindow::qt_metacall (this=0x9ffb3e8, _c=QMetaObject::InvokeMetaMethod, _id=105, _a=0xbfeb4ee8)
    at /var/tmp/portage/kde-base/konqueror-4.2.87/work/konqueror-4.2.87_build/konqueror/src/konqmainwindow.moc:438
#13 0xb7f81471 in QMetaObject::activate (sender=0xb48ff28, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3108
#14 0xb7f81a82 in QMetaObject::activate (sender=0xb48ff28, m=0xb801d924, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3185
#15 0xb7f87007 in QSingleShotTimer::timeout (this=0xb48ff28) at .moc/debug-shared/qtimer.moc:76
#16 0xb7f8712c in QSingleShotTimer::timerEvent (this=0xb48ff28) at kernel/qtimer.cpp:298
#17 0xb7f7beaf in QObject::event (this=0xb48ff28, e=0xbfeb537c) at kernel/qobject.cpp:1073
#18 0xb6bac49c in QApplicationPrivate::notify_helper (this=0x9f706d8, receiver=0xb48ff28, e=0xbfeb537c) at kernel/qapplication.cpp:4057
#19 0xb6bb50df in QApplication::notify (this=0xbfeb57f8, receiver=0xb48ff28, e=0xbfeb537c) at kernel/qapplication.cpp:3604
#20 0xb758e0d3 in KApplication::notify (this=0xbfeb57f8, receiver=0xb48ff28, event=0xbfeb537c) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdeui/kernel/kapplication.cpp:302
#21 0xb7f6b0ab in QCoreApplication::notifyInternal (this=0xbfeb57f8, receiver=0xb48ff28, event=0xbfeb537c) at kernel/qcoreapplication.cpp:606
#22 0xb7f99137 in QTimerInfoList::activateTimers (this=0x9f73534) at kernel/qcoreapplication.h:213
#23 0xb7f95aa0 in timerSourceDispatch (source=0x9f73500) at kernel/qeventdispatcher_glib.cpp:164
#24 0xb675f271 in IA__g_main_context_dispatch (context=0x9f72820) at gmain.c:2144
#25 0xb6762903 in g_main_context_iterate (context=0x9f72820, block=1, dispatch=1, self=0x9f70880) at gmain.c:2778
#26 0xb6762ac1 in IA__g_main_context_iteration (context=0x9f72820, may_block=1) at gmain.c:2841
#27 0xb7f959f8 in QEventDispatcherGlib::processEvents (this=0x9f706b8, flags={i = -1075096328}) at kernel/qeventdispatcher_glib.cpp:324
#28 0xb6c44955 in QGuiEventDispatcherGlib::processEvents (this=0x9f706b8, flags={i = -1075096280}) at kernel/qguieventdispatcher_glib.cpp:202
#29 0xb7f69aea in QEventLoop::processEvents (this=0xbfeb5590, flags={i = -1075096216}) at kernel/qeventloop.cpp:149
#30 0xb7f69caa in QEventLoop::exec (this=0xbfeb5590, flags={i = -1075096168}) at kernel/qeventloop.cpp:196
#31 0xb7f6ed21 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#32 0xb6bac1c7 in QApplication::exec () at kernel/qapplication.cpp:3526
#33 0xb51a09b3 in kdemain (argc=3, argv=0x9f4ec98) at /var/tmp/portage/kde-base/konqueror-4.2.87/work/konqueror-4.2.87/konqueror/src/konqmain.cpp:257
#34 0x0804e483 in launch (argc=3, _name=0x9f54dac "konqueror", args=0x9f54df6 "", cwd=0x0, envc=0, envs=0x9f54dfb "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x8051f34 "0")
    at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kinit/kinit.cpp:667
#35 0x0804eb0f in handle_launcher_request (sock=7, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kinit/kinit.cpp:1159
#36 0x0804f1bf in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kinit/kinit.cpp:1352
#37 0x0804f764 in main (argc=2, argv=0xbfeb6054, envp=0xbfeb6060) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kinit/kinit.cpp:1779