Application that crashed: dolphin
Version of the application: 1.3
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3)) "release 147"
Qt Version: 4.5.2
Operating System: Linux 2.6.30-git i686
Distribution: "openSUSE 11.1 (i586)"

What I was doing when the application crashed:
I tried to drag a file from Dolphin to Lokalize. Since Lokalize was in background I pressed Alt-Tab, brought Lokalize to front and when I released the mouse both applications crashed. When I retried and both applications were beneath each other everything worked fine.

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[KCrash Handler]
#6  0xb683ad11 in QWidget::testAttribute_helper(Qt::WidgetAttribute) const () from /usr/lib/libQtGui.so.4
#7  0xb67fb55b in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#8  0xb754e27d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#9  0xb65d816b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#10 0xb67fa4ce in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#11 0xb686a6e6 in ?? () from /usr/lib/libQtGui.so.4
#12 0xb6869ab5 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#13 0xb68935ca in ?? () from /usr/lib/libQtGui.so.4
#14 0xb5dd29c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#15 0xb5dd6083 in ?? () from /usr/lib/libglib-2.0.so.0
#16 0xb5dd6241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#17 0xb66038d8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#18 0xb6892cc5 in ?? () from /usr/lib/libQtGui.so.4
#19 0xb65d678a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#20 0xb65d6bd2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#21 0xb687c57b in QDragManager::drag(QDrag*) () from /usr/lib/libQtGui.so.4
#22 0xb6805e8a in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () from /usr/lib/libQtGui.so.4
#23 0xb7aed98e in DragAndDropHelper::startDrag (this=0x9f4fd90, itemView=0x9fa8b48, supportedActions={i = -1080686860}, controller=0x9fe7380)
    at /usr/src/debug/kdebase-4.2.98/apps/dolphin/src/draganddrophelper.cpp:93
#24 0xb7ad2c5b in DolphinIconsView::startDrag (this=0x9fa8b48, supportedActions={i = -1080686604}) at /usr/src/debug/kdebase-4.2.98/apps/dolphin/src/dolphiniconsview.cpp:198
#25 0xb6d2897d in QAbstractItemView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#26 0xb6d415e2 in QListView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#27 0xb7535789 in KCategorizedView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libkdeui.so.5
#28 0xb684923d in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#29 0xb6bdaaa3 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#30 0xb6c7ad5f in QAbstractScrollArea::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#31 0xb6d2d4f7 in QAbstractItemView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#32 0xb6c7d365 in ?? () from /usr/lib/libQtGui.so.4
#33 0xb65d737a in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#34 0xb67f27da in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#35 0xb67fb461 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#36 0xb754e27d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#37 0xb65d816b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#38 0xb67fa4ce in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#39 0xb686a6e6 in ?? () from /usr/lib/libQtGui.so.4
#40 0xb6869ab5 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#41 0xb68935ca in ?? () from /usr/lib/libQtGui.so.4
#42 0xb5dd29c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#43 0xb5dd6083 in ?? () from /usr/lib/libglib-2.0.so.0
#44 0xb5dd6241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#45 0xb66038d8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#46 0xb6892cc5 in ?? () from /usr/lib/libQtGui.so.4
#47 0xb65d678a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#48 0xb65d6bd2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#49 0xb65d9079 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#50 0xb67f2677 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#51 0x0807aacf in main (argc=2, argv=0xbf962c84) at /usr/src/debug/kdebase-4.2.98/apps/dolphin/src/main.cpp:94

Reported using DrKonqi