Version:           4.0 (using KDE 3.1.94 (CVS >= 20031206), compiled sources)
Compiler:          gcc version 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r3, propolice)
OS:          Linux (i686) release 2.6.0-gentoo

I believe what happened in this instance was that I had 2 konqs open, one with a two-pane frame with containing a file manager and kmplayer, respectively. I dropped a file to kmplayer then click-focused the 2nd konqueror quickly, but it looked as though the icon was still attached to the mouse cursor when I clicked. The 2nd konq crashed:

[New Thread 16384 (LWP 3974)]
0x4111c1a7 in waitpid () from /lib/libpthread.so.0
#0  0x4111c1a7 in waitpid () from /lib/libpthread.so.0
#1  0x4079154e in KCrash::defaultCrashHandler(int) (sig=11)
    at /home/jose/cvs/kde/src/kdelibs/kdecore/kcrash.cpp:246
#2  0x4111b01c in __pthread_sighandler () from /lib/libpthread.so.0
#3  <signal handler called>
#4  0x08652dc8 in ?? ()
#5  0x40e9cb93 in QObject::destroyed(QObject*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#6  0x40b8102d in QObject::~QObject() () from /usr/qt/3/lib/libqt-mt.so.3
#7  0x40bb30c9 in QWidget::~QWidget() () from /usr/qt/3/lib/libqt-mt.so.3
#8  0x41c40b07 in ~KonqFrame (this=0x8328f30)
    at /home/jose/cvs/kde/src/kdebase/konqueror/konq_frame.cc:315
#9  0x41c3c3c3 in QPtrList<KonqFrameBase>::deleteItem(void*) (this=0x8754a58, 
    d=0x8328fa4) at qptrlist.h:150
#10 0x40e24ace in QGList::clear() () from /usr/qt/3/lib/libqt-mt.so.3
#11 0x41c3acdb in QPtrList<KonqFrameBase>::clear() (this=0x8754a58)
    at qptrlist.h:93
#12 0x41c3c1d3 in ~QPtrList (this=0x8754a58) at qptrlist.h:70
#13 0x41c47533 in ~KonqFrameTabs (this=0x874e1d0)
    at /home/jose/cvs/kde/src/kdebase/konqueror/konq_tabs.cc:173
#14 0x41c35445 in KonqViewManager::clear() (this=0x8102f78)
    at /home/jose/cvs/kde/src/kdebase/konqueror/konq_viewmgr.cc:920
#15 0x41c34e01 in KonqViewManager::removePart(KParts::Part*) (this=0x8102f78, 
    part=0x849bc98)
    at /home/jose/cvs/kde/src/kdebase/konqueror/konq_viewmgr.cc:853
#16 0x40038d80 in ~Part (this=0x849bc98, __vtt_parm=0x41e6b02c)
    at /home/jose/cvs/kde/src/kdelibs/kparts/part.cpp:153
#17 0x40039a4d in ~ReadOnlyPart (this=0x849bc98, __vtt_parm=0x41e6b028)
    at /home/jose/cvs/kde/src/kdelibs/kparts/part.cpp:309
#18 0x41febed1 in ~KHTMLPart (this=0x849bc98, __vtt_parm=0x41e6b024)
    at /home/jose/cvs/kde/src/kdelibs/khtml/khtml_part.cpp:449
#19 0x41e67d3d in KonqAboutPage::~KonqAboutPage() ()
   from /home/jose/cvs/kde/install/lib/kde3/konq_aboutpage.so
#20 0x40039824 in KParts::Part::slotWidgetDestroyed() (this=0x849bc98)
    at /home/jose/cvs/kde/src/kdelibs/kparts/part.cpp:267
#21 0x4003b83f in KParts::Part::qt_invoke(int, QUObject*) (this=0x849bc98, 
    _id=2, _o=0xbfffe490) at part.moc:108
#22 0x4003bd45 in KParts::ReadOnlyPart::qt_invoke(int, QUObject*) (
    this=0x849bc98, _id=2, _o=0xbfffe490) at part.moc:261
#23 0x420093fe in KHTMLPart::qt_invoke(int, QUObject*) (this=0x849bc98, _id=2, 
    _o=0xbfffe490) at khtml_part.moc:525
#24 0x41e68c5d in KonqAboutPage::qt_invoke(int, QUObject*) ()
   from /home/jose/cvs/kde/install/lib/kde3/konq_aboutpage.so
#25 0x40b84188 in QObject::activate_signal(QConnectionList*, QUObject*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#26 0x40b84044 in QObject::activate_signal(int) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#27 0x40e9caeb in QObject::destroyed() () from /usr/qt/3/lib/libqt-mt.so.3
#28 0x40b81038 in QObject::~QObject() () from /usr/qt/3/lib/libqt-mt.so.3
#29 0x40bb30c9 in QWidget::~QWidget() () from /usr/qt/3/lib/libqt-mt.so.3
#30 0x40c8ea5a in QScrollView::~QScrollView() ()
   from /usr/qt/3/lib/libqt-mt.so.3
#31 0x41fd596c in ~KHTMLView (this=0x8652dd0)
    at /home/jose/cvs/kde/src/kdelibs/khtml/khtmlview.cpp:354
#32 0x40ad2e2c in qt_xdnd_obtain_data(char const*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#33 0x40ad3101 in QDropEvent::encodedData(char const*) const ()
   from /usr/qt/3/lib/libqt-mt.so.3
#34 0x40b36ad6 in QUriDrag::decode(QMimeSource const*, QStrList&) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#35 0x407da421 in KURLDrag::decode(QMimeSource const*, KURL::List&) (
    e=0xfffffe00, uris=@0xbfffe8c0)
    at /home/jose/cvs/kde/src/kdelibs/kdecore/kurldrag.cpp:74
#36 0x41c2cf0c in KonqView::eventFilter(QObject*, QEvent*) (this=0x832c628, 
    obj=0x8652dd0, e=0xbfffed00)
    at /home/jose/cvs/kde/src/kdebase/konqueror/konq_view.cc:1153
#37 0x40b81d2e in QObject::activate_filters(QEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#38 0x40b81c51 in QObject::event(QEvent*) () from /usr/qt/3/lib/libqt-mt.so.3
#39 0x40bb892c in QWidget::event(QEvent*) () from /usr/qt/3/lib/libqt-mt.so.3
#40 0x40b293a5 in QApplication::internalNotify(QObject*, QEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#41 0x40b28795 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#42 0x4070649e in KApplication::notify(QObject*, QEvent*) (this=0xbffff2f0, 
    receiver=0x8652dd0, event=0xbfffed00)
    at /home/jose/cvs/kde/src/kdelibs/kdecore/kapplication.cpp:503
#43 0x40ad0c46 in qt_handle_xdnd_position(QWidget*, _XEvent const*, bool) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#44 0x40abef72 in QApplication::x11ClientMessage(QWidget*, _XEvent*, bool) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#45 0x40ac00f4 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#46 0x40ad5e77 in QEventLoop::processEvents(unsigned) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#47 0x40b3c606 in QEventLoop::enterLoop() () from /usr/qt/3/lib/libqt-mt.so.3
#48 0x40b3c4a8 in QEventLoop::exec() () from /usr/qt/3/lib/libqt-mt.so.3
#49 0x40b295f1 in QApplication::exec() () from /usr/qt/3/lib/libqt-mt.so.3
#50 0x41c1ae51 in kdemain (argc=2, argv=0x805fe90)
    at /home/jose/cvs/kde/src/kdebase/konqueror/konq_main.cc:184
#51 0x4089a8f6 in kdeinitmain (argc=-512, argv=0xfffffe00)
    at konqueror_dummy.cc:2
#52 0x0804e1eb in launch (argc=2, _name=0x8061ebc "konqueror", 
    args=0x8061ed0 "", cwd=0x0, envc=0, envs=0x8061ed4 "", reset_env=false, 
    tty=0x0, avoid_loops=false, startup_id_str=0x8052da7 "0")
    at /home/jose/cvs/kde/src/kdelibs/kinit/kinit.cpp:604
#53 0x0804f4c4 in handle_launcher_request (sock=8)
    at /home/jose/cvs/kde/src/kdelibs/kinit/kinit.cpp:1167
#54 0x0804fbd9 in handle_requests (waitForPid=0)
    at /home/jose/cvs/kde/src/kdelibs/kinit/kinit.cpp:1360
#55 0x08051199 in main (argc=3, argv=0xbffff934, envp=0xbffff944)
    at /home/jose/cvs/kde/src/kdelibs/kinit/kinit.cpp:1797
#56 0x4127890c in __libc_start_main () from /lib/libc.so.6