Version:           4.00.98 (KDE 4.0.98 (4.1 RC1)) "release 7.1" (using 4.00.98 (KDE 4.0.98 (4.1 RC1)) "release 7.1", KDE:KDE4:Factory:Desktop / openSUSE_11.0)
Compiler:          gcc
OS:                Linux (x86_64) release 2.6.25.9-0.2-default

I think what happened was that I clicked close on a tab, it did not respond immediately (I had about 10 so maybe that was too much?) so I click the close button again, causing a crash:

Application: Konqueror (konqueror), signal SIGSEGV
[?1034h[Thread debugging using libthread_db enabled]
[New Thread 0x7fed07962700 (LWP 4078)]
[New Thread 0x41103950 (LWP 4084)]
[KCrash handler]
#5  KonqMainWindow::slotAddClosedUrl (this=0x70e240, tab=0xee8a9d8)
    at /usr/src/debug/kdebase-4.0.98/apps/konqueror/src/konqmainwindow.cpp:5130
#6  0x00007fed075313fc in KonqMainWindow::qt_metacall (this=0x70e240, 
    _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, 
    _a=0x7fff0f998f40)
    at /usr/src/debug/kdebase-4.0.98/build/apps/konqueror/src/konqmainwindow.moc:371
#7  0x00007fed053594f0 in QMetaObject::activate (sender=0x716d60, 
    from_signal_index=<value optimized out>, to_signal_index=10, 
    argv=0x7fed07776740) at kernel/qobject.cpp:3007
#8  0x00007fed074e3c9f in KonqViewManager::aboutToRemoveTab (
    this=0x7fed07775820, _t1=0xee8a9d8)
    at /usr/src/debug/kdebase-4.0.98/build/apps/konqueror/src/konqviewmanager.moc:104
#9  0x00007fed074e488b in KonqViewManager::removeTab (this=0x716d60, 
    currentFrame=0xee8a9d8, emitAboutToRemoveSignal=true)
    at /usr/src/debug/kdebase-4.0.98/apps/konqueror/src/konqviewmanager.cpp:380
#10 0x00007fed075318f5 in KonqMainWindow::qt_metacall (this=0x70e240, 
    _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, 
    _a=0x7fff0f9991c0)
    at /usr/src/debug/kdebase-4.0.98/build/apps/konqueror/src/konqmainwindow.moc:409
#11 0x00007fed053594f0 in QMetaObject::activate (sender=0x677c820, 
    from_signal_index=<value optimized out>, to_signal_index=4, 
    argv=0x7fed07776740) at kernel/qobject.cpp:3007
#12 0x00007fed0535ffef in QSingleShotTimer::timerEvent (this=0x677c820)
    at kernel/qtimer.cpp:300
#13 0x00007fed053556f3 in QObject::event (this=0x677c820, e=0x0)
    at kernel/qobject.cpp:1105
#14 0x00007fed025ce92d in QApplicationPrivate::notify_helper (this=0x61ea20, 
    receiver=0x677c820, e=0x7fff0f9998d0) at kernel/qapplication.cpp:3772
#15 0x00007fed025d4cfa in QApplication::notify (this=0x7fff0f99a110, 
    receiver=0x677c820, e=0x7fff0f9998d0) at kernel/qapplication.cpp:3739
#16 0x00007fed065d09ab in KApplication::notify (this=0x7fff0f99a110, 
    receiver=0x677c820, event=0x7fff0f9998d0)
    at /usr/src/debug/kdelibs-4.0.98/kdeui/kernel/kapplication.cpp:311
#17 0x00007fed05347e9c in QCoreApplication::notifyInternal (
    this=0x7fff0f99a110, receiver=0x677c820, event=0x7fff0f9998d0)
    at kernel/qcoreapplication.cpp:584
#18 0x00007fed0536e430 in QTimerInfoList::activateTimers (this=0x61f560)
    at kernel/qcoreapplication.h:215
#19 0x00007fed0536ea88 in QEventDispatcherUNIX::processEvents (this=0x61e2b0, 
    flags={i = 261724864}) at kernel/qeventdispatcher_unix.cpp:913
#20 0x00007fed0264f34a in QEventDispatcherX11::processEvents (this=0x61e2b0, 
    flags={i = 261725728}) at kernel/qeventdispatcher_x11.cpp:154
#21 0x00007fed053467f2 in QEventLoop::processEvents (
    this=<value optimized out>, flags={i = 261725776})
    at kernel/qeventloop.cpp:149
#22 0x00007fed05346985 in QEventLoop::exec (this=0x7fff0f999e90, flags=
      {i = 261725856}) at kernel/qeventloop.cpp:196
#23 0x00007fed05348a25 in QCoreApplication::exec ()
    at kernel/qcoreapplication.cpp:846
#24 0x00007fed07554c34 in kdemain (argc=<value optimized out>, 
    argv=<value optimized out>)
    at /usr/src/debug/kdebase-4.0.98/apps/konqueror/src/konqmain.cpp:227
#25 0x00007fed00f5d436 in __libc_start_main () from /lib64/libc.so.6
#26 0x0000000000400879 in _start ()
#0  0x00007fed00fe1261 in nanosleep () from /lib64/libc.so.6