Application that crashed: konqueror
Version of the application: 4.3.4 (KDE 4.3.4)
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.32-trunk-686 i686
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
I clicked on "Previous" on http://www.questionablecontent.net/ directly after closing a tab containing http://www.ginside.com/content/2007/03/dilbert-google-heatlh-plan.jpg

I am unable to reproduce this; it happenend only once.

 -- Backtrace:
Application: Konqueror (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  0xb6325120 in QWidget::internalWinId (this=0x11ccc690) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:234
#7  QWidget::effectiveWinId (this=0x11ccc690) at kernel/qwidget.cpp:2223
#8  0xb6368aa2 in qt_x11_enforce_cursor (w=0xf26f598, force=false) at kernel/qwidget_x11.cpp:306
#9  0xb6368bf9 in qt_x11_enforce_cursor (w=0xf26f598) at kernel/qwidget_x11.cpp:346
#10 0xb6368c60 in QWidgetPrivate::setCursor_sys (this=0xdd1af08) at kernel/qwidget_x11.cpp:1241
#11 0xb632d01a in QWidget::setCursor (this=0xf26f598, cursor=...) at kernel/qwidget.cpp:4628
#12 0xb219ba8f in KHTMLView::mouseMoveEvent (this=0xfa8d4c0, _mouse=0xbf9cfcbc) at ../../khtml/khtmlview.cpp:1481
#13 0xb632d865 in QWidget::event (this=0xfa8d4c0, event=0xbf9cfcbc) at kernel/qwidget.cpp:7539
#14 0xb66d3543 in QFrame::event (this=0xfa8d4c0, e=0xbf9cfcbc) at widgets/qframe.cpp:559
#15 0xb219854f in KHTMLView::widgetEvent (this=0xfa8d4c0, e=0xdd1af08) at ../../khtml/khtmlview.cpp:2338
#16 0xb219884d in KHTMLView::eventFilter (this=0xfa8d4c0, o=0xf29e7d0, e=0xbf9cfcbc) at ../../khtml/khtmlview.cpp:2191
#17 0xb763741a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x990cac0, receiver=0xf29e7d0, event=0xbf9cfcbc) at kernel/qcoreapplication.cpp:726
#18 0xb62d7a6c in QApplicationPrivate::notify_helper (this=0x990cac0, receiver=0xf29e7d0, e=0xbf9cfcbc) at kernel/qapplication.cpp:4061
#19 0xb62e0551 in QApplication::notify (this=0xbf9d163c, receiver=0xf29e7d0, e=0xbf9cfcbc) at kernel/qapplication.cpp:3767
#20 0xb6d2162d in KApplication::notify (this=0xbf9d163c, receiver=0xf29e7d0, event=0xbf9cfcbc) at ../../kdeui/kernel/kapplication.cpp:302
#21 0xb76381eb in QCoreApplication::notifyInternal (this=0xbf9d163c, receiver=0xf29e7d0, event=0xbf9cfcbc) at kernel/qcoreapplication.cpp:610
#22 0xb62df5de in QCoreApplication::sendSpontaneousEvent (receiver=0xf29e7d0, event=0xbf9cfcbc, alienWidget=0x0, nativeWidget=0xf29e7d0, buttonDown=0xb6b4e580, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#23 QApplicationPrivate::sendMouseEvent (receiver=0xf29e7d0, event=0xbf9cfcbc, alienWidget=0x0, nativeWidget=0xf29e7d0, buttonDown=0xb6b4e580, lastMouseReceiver=...) at kernel/qapplication.cpp:2924
#24 0xb634e175 in QETWidget::translateMouseEvent (this=0xf29e7d0, event=0xbf9d126c) at kernel/qapplication_x11.cpp:4411
#25 0xb634d646 in QApplication::x11ProcessEvent (this=0xbf9d163c, event=0xbf9d126c) at kernel/qapplication_x11.cpp:3430
#26 0xb6377bc2 in x11EventSourceDispatch (s=0x992c300, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#27 0xb5ebdb38 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0xb5ec13d0 in ?? () from /lib/libglib-2.0.so.0
#29 0xb5ec1503 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0xb7663041 in QEventDispatcherGlib::processEvents (this=0x98bb220, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#31 0xb6377305 in QGuiEventDispatcherGlib::processEvents (this=0x98bb220, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#32 0xb763683a in QEventLoop::processEvents (this=0xbf9d1520, flags=...) at kernel/qeventloop.cpp:149
#33 0xb7636c82 in QEventLoop::exec (this=0xbf9d1520, flags=...) at kernel/qeventloop.cpp:201
#34 0xb76390d9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#35 0xb62d7917 in QApplication::exec () at kernel/qapplication.cpp:3525
#36 0xb4249639 in kdemain () from /usr/lib/libkdeinit4_konqueror.so
#37 0x0804e291 in launch (argc=2, _name=0x98f4f3c "/usr/bin/konqueror", args=0x98f4f57 "", cwd=0x0, envc=0, envs=0x98f4f5c "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x98f4f60 "roadwarrior;1265463598;758011;2473_TIME1414340") at ../../kinit/kinit.cpp:677
#38 0x0804ea15 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#39 0x0804ee5b in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#40 0x0804f689 in main (argc=1, argv=0xbf9d2084, envp=0xbf9d208c) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi