Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-23-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
At the time, I was running Firefox and Thunderbird, while listening to a rather large mix-file on Realplayer. (Nne of these quit during the crash.) I have two desktops. I'd switched to the second and clicked my middle mouse button, (also a scroll wheel), to bring up a "post-it note" to keep a bit of text handy. Instead of opening a note, I got a meny asking if I wanted a note or Konqueror. (This had never hjappened before.) I selected a note. Instead of the familiar yellow window opening, I saw a crash alert. Plasmoid might have re-started before the crash handler gave me the option of re-starting it. That's pretty much it. I'm still using Karmic, (2.6.31-23-generic), with KDE 4.3.2 on an Athlon XP-M 1900+ system with 768MB of RAM, video through a GeForce FV5500 that might not be in use otherwise. (had trouble with drivers) Akonadi is off.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  0x0025c017 in QMimeDataPrivate::retrieveTypedData (this=0x9e13e0, format=..., type=QVariant::ByteArray) at kernel/qmimedata.cpp:107
#7  0x0025c951 in QMimeData::data (this=0xa211c78, mimeType=...) at kernel/qmimedata.cpp:524
#8  0x047b2c01 in Plasma::ContainmentPrivate::dropData (this=0x954ae98, event=0xbfce70cc) at ../../plasma/containment.cpp:1215
#9  0x047b31df in Plasma::Containment::mouseReleaseEvent (this=0x97cba58, event=0xbfce70cc) at ../../plasma/containment.cpp:499
#10 0x053c88bc in QGraphicsItem::sceneEvent (this=0x97cba60, event=0xbfce70cc) at graphicsview/qgraphicsitem.cpp:5030
#11 0x054159ef in QGraphicsWidget::sceneEvent (this=0x97cba58, event=0xbfce70cc) at graphicsview/qgraphicswidget.cpp:1110
#12 0x053eae14 in QGraphicsScenePrivate::sendEvent (this=0x952f000, item=0x97cba60, event=0xbfce70cc) at graphicsview/qgraphicsscene.cpp:1159
#13 0x053ec443 in QGraphicsScenePrivate::sendMouseEvent (this=0x952f000, mouseEvent=0xbfce70cc) at graphicsview/qgraphicsscene.cpp:1230
#14 0x053f7344 in QGraphicsScene::mouseReleaseEvent (this=0x9571420, mouseEvent=0xbfce70cc) at graphicsview/qgraphicsscene.cpp:4445
#15 0x053f8f87 in QGraphicsScene::event (this=0x9571420, event=0xbfce70cc) at graphicsview/qgraphicsscene.cpp:3808
#16 0x04dbcf54 in QApplicationPrivate::notify_helper (this=0x94f7910, receiver=0x9571420, e=0xbfce70cc) at kernel/qapplication.cpp:4056
#17 0x04dc467c in QApplication::notify (this=0x94d0a70, receiver=0x9571420, e=0xbfce70cc) at kernel/qapplication.cpp:3603
#18 0x010c2bfa in KApplication::notify (this=0x94d0a70, receiver=0x9571420, event=0xbfce70cc) at ../../kdeui/kernel/kapplication.cpp:302
#19 0x0024f6cb in QCoreApplication::notifyInternal (this=0x94d0a70, receiver=0x9571420, event=0xbfce70cc) at kernel/qcoreapplication.cpp:610
#20 0x0540ab1e in QCoreApplication::sendEvent (this=0x98cc660, event=0xbfce76f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#21 QGraphicsView::mouseReleaseEvent (this=0x98cc660, event=0xbfce76f0) at graphicsview/qgraphicsview.cpp:3382
#22 0x04e12012 in QWidget::event (this=0x98cc660, event=0xbfce76f0) at kernel/qwidget.cpp:7549
#23 0x051c1633 in QFrame::event (this=0x98cc660, e=0xbfce76f0) at widgets/qframe.cpp:559
#24 0x05260494 in QAbstractScrollArea::viewportEvent (this=0xa26d844, e=0xa202958) at widgets/qabstractscrollarea.cpp:962
#25 0x0540a51f in QGraphicsView::viewportEvent (this=0x98cc660, event=0xbfce76f0) at graphicsview/qgraphicsview.cpp:2919
#26 0x05262a95 in QAbstractScrollAreaPrivate::viewportEvent (this=0x9987d68, o=0x98a1710, e=0xbfce76f0) at widgets/qabstractscrollarea_p.h:100
#27 QAbstractScrollAreaFilter::eventFilter (this=0x9987d68, o=0x98a1710, e=0xbfce76f0) at widgets/qabstractscrollarea_p.h:111
#28 0x0024e83a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x94f7910, receiver=0x98a1710, event=0xbfce76f0) at kernel/qcoreapplication.cpp:726
#29 0x04dbcf2c in QApplicationPrivate::notify_helper (this=0x94f7910, receiver=0x98a1710, e=0xbfce76f0) at kernel/qapplication.cpp:4052
#30 0x04dc5033 in QApplication::notify (this=0x94d0a70, receiver=0x98a1710, e=0xbfce76f0) at kernel/qapplication.cpp:3758
#31 0x010c2bfa in KApplication::notify (this=0x94d0a70, receiver=0x98a1710, event=0xbfce76f0) at ../../kdeui/kernel/kapplication.cpp:302
#32 0x0024f6cb in QCoreApplication::notifyInternal (this=0x94d0a70, receiver=0x98a1710, event=0xbfce76f0) at kernel/qcoreapplication.cpp:610
#33 0x04dc3f6e in QCoreApplication::sendSpontaneousEvent (receiver=0x98a1710, event=0xbfce76f0, alienWidget=0x98a1710, nativeWidget=0x98cc660, buttonDown=0x5637aa0, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#34 QApplicationPrivate::sendMouseEvent (receiver=0x98a1710, event=0xbfce76f0, alienWidget=0x98a1710, nativeWidget=0x98cc660, buttonDown=0x5637aa0, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#35 0x04e327c0 in QETWidget::translateMouseEvent (this=0x98cc660, event=0xbfce8d3c) at kernel/qapplication_x11.cpp:4409
#36 0x04e31c4b in QApplication::x11ProcessEvent (this=0x94d0a70, event=0xbfce8d3c) at kernel/qapplication_x11.cpp:3428
#37 0x04e5e502 in x11EventSourceDispatch (s=0x94fa500, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#38 0x00a1ce88 in g_main_dispatch (context=0x94f9890) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#39 IA__g_main_context_dispatch (context=0x94f9890) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#40 0x00a20730 in g_main_context_iterate (context=0x94f9890, block=<value optimized out>, dispatch=1, self=0x94f7418) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#41 0x00a20863 in IA__g_main_context_iteration (context=0x94f9890, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#42 0x0027a02c in QEventDispatcherGlib::processEvents (this=0x94f7700, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#43 0x04e5dbe5 in QGuiEventDispatcherGlib::processEvents (this=0x94f7700, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#44 0x0024dc79 in QEventLoop::processEvents (this=0xbfce9034, flags=) at kernel/qeventloop.cpp:149
#45 0x0024e0ca in QEventLoop::exec (this=0xbfce9034, flags=...) at kernel/qeventloop.cpp:201
#46 0x0025053f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#47 0x04dbcdd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#48 0x084b580d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#49 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x9497ac8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#50 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#51 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#52 0x0804fbaf in main (argc=2, argv=0xbfce9894, envp=0xbfce98a0) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi