Application that crashed: dolphin
Version of the application: 1.3
KDE Version: 4.3.3 (KDE 4.3.3)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Both Dolphin and plasma crashed when I dragged a file from Dolphin to another virtual desktop, mistakenly activated system tray 

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  QDragManager::move (this=0x1350af0, globalPos=<value optimized out>) at kernel/qdnd_x11.cpp:1642
#6  0x00007f6566c38d59 in QDragManager::eventFilter (this=0x7f65662cde40, o=<value optimized out>, e=0x0) at kernel/qdnd_x11.cpp:1296
#7  0x00007f656672600b in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=0xd24d00, receiver=0x1336720, event=0x7fff38a65a70) at kernel/qcoreapplication.cpp:707
#8  0x00007f6566bb9e76 in QApplicationPrivate::notify_helper (this=0x7f65662cde40, receiver=0x0, e=0x0) at kernel/qapplication.cpp:4031
#9  0x00007f6566bc1011 in QApplication::notify (this=<value optimized out>, receiver=0x1336720, e=0x7fff38a65a70) at kernel/qapplication.cpp:3758
#10 0x00007f6567eeee56 in KApplication::notify (this=0x7fff38a6a910, receiver=0x1336720, event=0x7fff38a65a70) at ../../kdeui/kernel/kapplication.cpp:302
#11 0x00007f6566726c2c in QCoreApplication::notifyInternal (this=0x7fff38a6a910, receiver=0x1336720, event=0x7fff38a65a70) at kernel/qcoreapplication.cpp:610
#12 0x00007f6566bc08e0 in QCoreApplication::sendSpontaneousEvent (receiver=0x1336720, event=0x7fff38a65a70, alienWidget=0x0, nativeWidget=0x1336720, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#13 QApplicationPrivate::sendMouseEvent (receiver=0x1336720, event=0x7fff38a65a70, alienWidget=0x0, nativeWidget=0x1336720, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>)
    at kernel/qapplication.cpp:2924
#14 0x00007f6566c26a0e in QETWidget::translateMouseEvent (this=0x1336720, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#15 0x00007f6566c25aa9 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff38a675a0) at kernel/qapplication_x11.cpp:3550
#16 0x00007f6566c4ed0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#17 0x00007f6562244bce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#18 0x00007f6562248598 in ?? () from /lib/libglib-2.0.so.0
#19 0x00007f65622486c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#20 0x00007f656674f1a6 in QEventDispatcherGlib::processEvents (this=0xcf2d20, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#21 0x00007f6566c4e4be in QGuiEventDispatcherGlib::processEvents (this=0x7f65662cde40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#22 0x00007f6566725532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#23 0x00007f6566725904 in QEventLoop::exec (this=0x26c03d0, flags=) at kernel/qeventloop.cpp:201
#24 0x00007f6566c3867c in QDragManager::drag (this=0x1350af0, o=<value optimized out>) at kernel/qdnd_x11.cpp:1969
#25 0x00007f6566bcc168 in QDrag::exec (this=0x1c171d0, supportedActions=) at kernel/qdrag.cpp:282
#26 0x00007f6568d3568d in DragAndDropHelper::startDrag (this=0xd9d300, itemView=0x133ec70, supportedActions=) at ../../../../apps/dolphin/src/draganddrophelper.cpp:93
#27 0x00007f6568d1b210 in DolphinDetailsView::startDrag (this=0x133ec70, supportedActions=<value optimized out>) at ../../../../apps/dolphin/src/dolphindetailsview.cpp:310
#28 0x00007f6567091c36 in QAbstractItemView::mouseMoveEvent (this=0x133ec70, event=<value optimized out>) at itemviews/qabstractitemview.cpp:1552
#29 0x00007f6568d1b3b5 in DolphinDetailsView::mouseMoveEvent (this=0x7f65662cde40, event=0x7fff38a68a00) at ../../../../apps/dolphin/src/dolphindetailsview.cpp:280
#30 0x00007f6566c08822 in QWidget::event (this=0x133ec70, event=0x7fff38a68a00) at kernel/qwidget.cpp:7534
#31 0x00007f6566f642a6 in QFrame::event (this=0x133ec70, e=0x7fff38a68a00) at widgets/qframe.cpp:559
#32 0x00007f656709721b in QAbstractItemView::viewportEvent (this=0x133ec70, event=0x7fff38a68a00) at itemviews/qabstractitemview.cpp:1476
#33 0x00007f65670ce420 in QTreeView::viewportEvent (this=0x133ec70, event=0x7fff38a68a00) at itemviews/qtreeview.cpp:1266
#34 0x00007f6566725f47 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2d86a70, event=0x7fff38a68a00) at kernel/qcoreapplication.cpp:726
#35 0x00007f6566bb9ecc in QApplicationPrivate::notify_helper (this=0xd24d00, receiver=0x2d86a70, e=0x7fff38a68a00) at kernel/qapplication.cpp:4052
#36 0x00007f6566bc1011 in QApplication::notify (this=<value optimized out>, receiver=0x2d86a70, e=0x7fff38a68a00) at kernel/qapplication.cpp:3758
#37 0x00007f6567eeee56 in KApplication::notify (this=0x7fff38a6a910, receiver=0x2d86a70, event=0x7fff38a68a00) at ../../kdeui/kernel/kapplication.cpp:302
#38 0x00007f6566726c2c in QCoreApplication::notifyInternal (this=0x7fff38a6a910, receiver=0x2d86a70, event=0x7fff38a68a00) at kernel/qcoreapplication.cpp:610
#39 0x00007f6566bc08e0 in QCoreApplication::sendSpontaneousEvent (receiver=0x2d86a70, event=0x7fff38a68a00, alienWidget=0x2d86a70, nativeWidget=0x42cb220, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#40 QApplicationPrivate::sendMouseEvent (receiver=0x2d86a70, event=0x7fff38a68a00, alienWidget=0x2d86a70, nativeWidget=0x42cb220, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at kernel/qapplication.cpp:2924
#41 0x00007f6566c26a0e in QETWidget::translateMouseEvent (this=0x42cb220, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#42 0x00007f6566c25aa9 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff38a6a530) at kernel/qapplication_x11.cpp:3550
#43 0x00007f6566c4ed0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#44 0x00007f6562244bce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#45 0x00007f6562248598 in ?? () from /lib/libglib-2.0.so.0
#46 0x00007f65622486c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#47 0x00007f656674f1a6 in QEventDispatcherGlib::processEvents (this=0xcf2d20, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#48 0x00007f6566c4e4be in QGuiEventDispatcherGlib::processEvents (this=0x7f65662cde40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#49 0x00007f6566725532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#50 0x00007f6566725904 in QEventLoop::exec (this=0x7fff38a6a860, flags=) at kernel/qeventloop.cpp:201
#51 0x00007f6566727ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#52 0x00000000004394e5 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../../apps/dolphin/src/main.cpp:94

This bug may be a duplicate of or related to bug 219947

Reported using DrKonqi