Version:            (using KDE 4.1.3)
Compiler:          gcc-4.3.0-8.x86_64  
OS:                Linux
Installed from:    Fedora RPMs

After visiting sundry pages, hitting "back" causes Konqueror to die a sigsegv death.  I've seen it happen from a couple different places, and the backtrace is always similar but not identical to this one:

[KCrash handler]
#5  0x0000003006e68c59 in KJS::PropertyMap::get () from /usr/lib64/libkjs.so.4
#6  0x00000039c8163d37 in ?? () from /usr/lib64/libkhtml.so.5
#7  0x00000039c8163dec in ?? () from /usr/lib64/libkhtml.so.5
#8  0x00000039c815551c in ?? () from /usr/lib64/libkhtml.so.5
#9  0x00000039c8187643 in ?? () from /usr/lib64/libkhtml.so.5
#10 0x0000003006e61830 in KJS::JSObject::get () from /usr/lib64/libkjs.so.4
#11 0x0000003006e774a2 in ?? () from /usr/lib64/libkjs.so.4
#12 0x0000003006e33ed9 in ?? () from /usr/lib64/libkjs.so.4
#13 0x0000003006e650c7 in KJS::Interpreter::evaluate ()
   from /usr/lib64/libkjs.so.4
#14 0x0000003006e65213 in KJS::Interpreter::evaluate ()
   from /usr/lib64/libkjs.so.4
#15 0x00000039c819b310 in ?? () from /usr/lib64/libkhtml.so.5
#16 0x00000039c7f79ef1 in KHTMLPart::executeScript ()
   from /usr/lib64/libkhtml.so.5
#17 0x00000039c801e944 in ?? () from /usr/lib64/libkhtml.so.5
#18 0x00000039c8023c78 in ?? () from /usr/lib64/libkhtml.so.5
#19 0x00000039c8025675 in ?? () from /usr/lib64/libkhtml.so.5
#20 0x00000039c8027555 in ?? () from /usr/lib64/libkhtml.so.5
#21 0x00000039c80288a5 in ?? () from /usr/lib64/libkhtml.so.5
#22 0x00000039c7f85d08 in KHTMLPart::write () from /usr/lib64/libkhtml.so.5
#23 0x00000039c7f8cc6e in KHTMLPart::slotData () from /usr/lib64/libkhtml.so.5
#24 0x00000039c7f9e1f0 in KHTMLPart::qt_metacall ()
   from /usr/lib64/libkhtml.so.5
#25 0x00000039275574c4 in QMetaObject::activate ()
   from /usr/lib64/libQtCore.so.4
#26 0x00000039c4cd7dc4 in KIO::TransferJob::data ()
   from /usr/lib64/libkio.so.5
#27 0x00000039c4cdf3e9 in KIO::TransferJob::qt_metacall ()
   from /usr/lib64/libkio.so.5
#28 0x00000039275574c4 in QMetaObject::activate ()
   from /usr/lib64/libQtCore.so.4
#29 0x00000039c4d82172 in KIO::SlaveInterface::data ()
   from /usr/lib64/libkio.so.5
#30 0x00000039c4d848f8 in KIO::SlaveInterface::dispatch ()
   from /usr/lib64/libkio.so.5
#31 0x00000039c4d82762 in KIO::SlaveInterface::dispatch ()
   from /usr/lib64/libkio.so.5
#32 0x00000039c4d75fbe in KIO::Slave::gotInput () from /usr/lib64/libkio.so.5
#33 0x00000039c4d762c8 in KIO::Slave::qt_metacall ()
   from /usr/lib64/libkio.so.5
#34 0x00000039275574c4 in QMetaObject::activate ()
   from /usr/lib64/libQtCore.so.4
#35 0x00000039c4cb21e1 in ?? () from /usr/lib64/libkio.so.5
#36 0x00000039c4cb288a in KIO::Connection::qt_metacall ()
   from /usr/lib64/libkio.so.5
#37 0x000000392755213d in QObject::event () from /usr/lib64/libQtCore.so.4
#38 0x00000039c25827dd in QApplicationPrivate::notify_helper ()
   from /usr/lib64/libQtGui.so.4
#39 0x00000039c258a58a in QApplication::notify ()
   from /usr/lib64/libQtGui.so.4
#40 0x00000039c3ffb98b in KApplication::notify ()
   from /usr/lib64/libkdeui.so.5
#41 0x0000003927543081 in QCoreApplication::notifyInternal ()
   from /usr/lib64/libQtCore.so.4
#42 0x0000003927543d2a in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib64/libQtCore.so.4
#43 0x000000392756b8e3 in ?? () from /usr/lib64/libQtCore.so.4
#44 0x000000301a83742b in g_main_context_dispatch ()
   from /lib64/libglib-2.0.so.0
#45 0x000000301a83ac0d in ?? () from /lib64/libglib-2.0.so.0
#46 0x000000301a83adcb in g_main_context_iteration ()
   from /lib64/libglib-2.0.so.0
#47 0x000000392756b56f in QEventDispatcherGlib::processEvents ()
   from /usr/lib64/libQtCore.so.4
#48 0x00000039c261350f in ?? () from /usr/lib64/libQtGui.so.4
#49 0x0000003927541992 in QEventLoop::processEvents ()
   from /usr/lib64/libQtCore.so.4
#50 0x0000003927541b1d in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#51 0x0000003927543fed in QCoreApplication::exec ()
   from /usr/lib64/libQtCore.so.4
#52 0x00000039c56b8144 in kdemain () from /usr/lib64/libkdeinit4_konqueror.so
#53 0x00000034eb21e32a in __libc_start_main () from /lib64/libc.so.6
#54 0x0000000000400809 in _start ()


When it happens it takes out all the Konqueror windows (2+ windows, most with multiple tabs).  On restarting Konqueror if I allow it to restore my session it'll die again unless I interrupt it (I can then reload the other pages).

In this case I was at imdb.com, looking at information on "The Big Sleep" and "Julie Ege".

For what it's worth, I tried posting this bug using Konqueror but when I get to where I am now it says "The token you submitted does not exist, has expired, or has been canceled."  If this bug gets posted, then it works from Firefox v3.0.5.