Application that crashed: konqueror
Version of the application: 4.3.2 (KDE 4.3.2)
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
This might be a duplicate bug of something else but, this was what I was doing. I had a konqueror window in the back of the screen and serveral windows up front, I dragged by mistake an image from the back konqueror window. The funy thing that the window didn't received focus but instead it crashed.

 -- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f67e0e9794c in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x1e3ec80, receiver=0x26b80b0, event=0x7fffeb8eea30) at ../../include/QtCore/../../src/corelib/tools/qlist.h:87
#6  0x00007f67e0315f1c in QApplicationPrivate::notify_helper (this=0x1e3ec80, receiver=0x26b80b0, e=0x7fffeb8eea30) at kernel/qapplication.cpp:4052
#7  0x00007f67e031e6d0 in QApplication::notify (this=<value optimized out>, receiver=0x11b77cf0, e=0x7fffeb8eea30) at kernel/qapplication.cpp:4009
#8  0x00007f67e1cddabb in KApplication::notify (this=0x7fffeb8f2700, receiver=0x11b77cf0, event=0x7fffeb8eea30) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:302
#9  0x00007f67e0e986ac in QCoreApplication::notifyInternal (this=0x7fffeb8f2700, receiver=0x11b77cf0, event=0x7fffeb8eea30) at kernel/qcoreapplication.cpp:610
#10 0x00007f67e0393ff7 in handle_xdnd_position (w=0x1f95730, xe=0x7fffeb8eed50, passive=false) at kernel/qdnd_x11.cpp:939
#11 0x00007f67e039845f in QDragManager::move (this=0x4e29610, globalPos=@0x7fffeb8eee80) at kernel/qdnd_x11.cpp:1652
#12 0x00007f67e039891e in QDragManager::drag (this=0x4e29610, o=<value optimized out>) at kernel/qdnd_x11.cpp:1960
#13 0x00007f67e0328925 in QDrag::start (this=0x7c8b740, request={i = -342953488}) at kernel/qdrag.cpp:314
#14 0x00007f67d17d4b46 in KHTMLPart::handleMouseMoveEventDrag (this=0x36c7850, event=0x7fffeb8ef060) at /build/buildd/kde4libs-4.3.2/khtml/khtml_part.cpp:6297
#15 0x00007f67d17dc2d9 in KHTMLPart::khtmlMouseMoveEvent (this=0x1e3ec80, event=0x26b80b0) at /build/buildd/kde4libs-4.3.2/khtml/khtml_part.cpp:6396
#16 0x00007f67e0ea862d in QObject::event (this=0x36c7850, e=0x7fffeb8ef8d0) at kernel/qobject.cpp:1142
#17 0x00007f67e0315f4d in QApplicationPrivate::notify_helper (this=0x1e3ec80, receiver=0x36c7850, e=0x7fffeb8ef8d0) at kernel/qapplication.cpp:4056
#18 0x00007f67e031e18a in QApplication::notify (this=0x7fffeb8f2700, receiver=0x36c7850, e=0x7fffeb8ef8d0) at kernel/qapplication.cpp:4021
#19 0x00007f67e1cddabb in KApplication::notify (this=0x7fffeb8f2700, receiver=0x36c7850, event=0x7fffeb8ef8d0) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:302
#20 0x00007f67e0e986ac in QCoreApplication::notifyInternal (this=0x7fffeb8f2700, receiver=0x36c7850, event=0x7fffeb8ef8d0) at kernel/qcoreapplication.cpp:610
#21 0x00007f67d17b6268 in KHTMLView::mouseMoveEvent (this=0x35088e0, _mouse=0x7fffeb8f05d0) at /usr/include/qt4/QtCore/qcoreapplication.h:213
#22 0x00007f67e0366f58 in QWidget::event (this=0x35088e0, event=0x7fffeb8f05d0) at kernel/qwidget.cpp:7534
#23 0x00007f67e06d9f0b in QFrame::event (this=0x35088e0, e=0x7fffeb8f05d0) at widgets/qframe.cpp:559
#24 0x00007f67d17b34d5 in KHTMLView::widgetEvent (this=0x35088e0, e=0x26b80b0) at /build/buildd/kde4libs-4.3.2/khtml/khtmlview.cpp:2338
#25 0x00007f67d17b3854 in KHTMLView::eventFilter (this=0x35088e0, o=0x41fc060, e=0x7fffeb8f05d0) at /build/buildd/kde4libs-4.3.2/khtml/khtmlview.cpp:2191
#26 0x00007f67e0e979b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x41fc060, event=0x7fffeb8f05d0) at kernel/qcoreapplication.cpp:726
#27 0x00007f67e0315f1c in QApplicationPrivate::notify_helper (this=0x1e3ec80, receiver=0x41fc060, e=0x7fffeb8f05d0) at kernel/qapplication.cpp:4052
#28 0x00007f67e031e8ea in QApplication::notify (this=<value optimized out>, receiver=0x41fc060, e=0x7fffeb8f05d0) at kernel/qapplication.cpp:3758
#29 0x00007f67e1cddabb in KApplication::notify (this=0x7fffeb8f2700, receiver=0x41fc060, event=0x7fffeb8f05d0) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:302
#30 0x00007f67e0e986ac in QCoreApplication::notifyInternal (this=0x7fffeb8f2700, receiver=0x41fc060, event=0x7fffeb8f05d0) at kernel/qcoreapplication.cpp:610
#31 0x00007f67e031db38 in QApplicationPrivate::sendMouseEvent (receiver=0x41fc060, event=0x7fffeb8f05d0, alienWidget=0x0, nativeWidget=0x41fc060, buttonDown=<value optimized out>, 
    lastMouseReceiver=@0x7f67e0d4d010) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#32 0x00007f67e0387b19 in QETWidget::translateMouseEvent (this=0x41fc060, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#33 0x00007f67e0386b53 in QApplication::x11ProcessEvent (this=0x7fffeb8f2700, event=0x7fffeb8f2150) at kernel/qapplication_x11.cpp:3550
#34 0x00007f67e03af454 in x11EventSourceDispatch (s=0x1e42a80, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0x00007f67dc29f20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#36 0x00007f67dc2a28e0 in ?? () from /usr/lib/libglib-2.0.so.0
#37 0x00007f67dc2a2a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#38 0x00007f67e0ec1a8f in QEventDispatcherGlib::processEvents (this=0x1e21b50, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#39 0x00007f67e03aebdf in QGuiEventDispatcherGlib::processEvents (this=0x1e3ec80, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#40 0x00007f67e0e96f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -342940608}) at kernel/qeventloop.cpp:149
#41 0x00007f67e0e97314 in QEventLoop::exec (this=0x7fffeb8f2480, flags={i = -342940528}) at kernel/qeventloop.cpp:201
#42 0x00007f67e0e995e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#43 0x00007f67e34a44e2 in kdemain () from /usr/lib/libkdeinit4_konqueror.so
#44 0x00007f67de71d5a6 in __libc_start_main (main=0x400870 <_start+240>, argc=2, ubp_av=0x7fffeb8f3248, init=0x4008a0 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fffeb8f3238) at libc-start.c:220
#45 0x00000000004007a9 in _start ()

Reported using DrKonqi