Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.32-ARCH x86_64

What I was doing when the application crashed:
I was moving a bulk of files back and fourth past some folders (after dragging them up to scroll) when the folder previews opened and closed, resulting in a tidy crash handler appearing.
If it's of any relevance, I've got two folder view plasmoids on my desktop.

 -- Backtrace:
Application: Plasma-arbeidsområde (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f0e13c91760 (LWP 2507))]

Thread 2 (Thread 0x7f0df3aa1710 (LWP 2509)):
#0  0x00007f0e1347f07c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f0e136eac6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007f0e0fb64c9c in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007f0e136e9ba5 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f0e1347a81a in start_thread () from /lib/libpthread.so.0
#5  0x00007f0e10e42c7d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0e13c91760 (LWP 2507)):
[KCrash Handler]
#5  0x00007f0df5d8fbd0 in IconView::popupVisible() const () from /usr/lib/kde4/plasma_applet_folderview.so
#6  0x00007f0df5d9ffcd in PopupView::dragLeaveEvent(QDragLeaveEvent*) () from /usr/lib/kde4/plasma_applet_folderview.so
#7  0x00007f0e115b850d in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#8  0x00007f0e1156a07c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#9  0x00007f0e1157184d in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#10 0x00007f0e1219d8f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#11 0x00007f0e137cebfc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#12 0x00007f0e115e314e in ?? () from /usr/lib/libQtGui.so.4
#13 0x00007f0e115e32bb in ?? () from /usr/lib/libQtGui.so.4
#14 0x00007f0e115e502d in QDragManager::move(QPoint const&) () from /usr/lib/libQtGui.so.4
#15 0x00007f0e115e8be9 in QDragManager::eventFilter(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#16 0x00007f0e137ce00b in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x00007f0e11569ff6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x00007f0e11571191 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00007f0e1219d8f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x00007f0e137cebfc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x00007f0e11570a60 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#22 0x00007f0e115d6a04 in ?? () from /usr/lib/libQtGui.so.4
#23 0x00007f0e115d56da in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#24 0x00007f0e115fd96c in ?? () from /usr/lib/libQtGui.so.4
#25 0x00007f0e104c926e in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0x00007f0e104ccc28 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#27 0x00007f0e104ccd50 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0x00007f0e137f7123 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#29 0x00007f0e115fd14e in ?? () from /usr/lib/libQtGui.so.4
#30 0x00007f0e137cd532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x00007f0e137cd904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0x00007f0e115e8549 in QDragManager::drag(QDrag*) () from /usr/lib/libQtGui.so.4
#33 0x00007f0e1157c2e8 in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () from /usr/lib/libQtGui.so.4
#34 0x00007f0e1157c3a3 in QDrag::exec(QFlags<Qt::DropAction>) () from /usr/lib/libQtGui.so.4
#35 0x00007f0df5d98bf4 in IconView::startDrag(QPointF const&, QWidget*) () from /usr/lib/kde4/plasma_applet_folderview.so
#36 0x00007f0df5d98f0e in IconView::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /usr/lib/kde4/plasma_applet_folderview.so
#37 0x00007f0e11aeddb1 in QGraphicsItem::sceneEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#38 0x00007f0e11b135b9 in ?? () from /usr/lib/libQtGui.so.4
#39 0x00007f0e11b1bc01 in QGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /usr/lib/libQtGui.so.4
#40 0x00007f0e11b1d6bf in QGraphicsScene::event(QEvent*) () from /usr/lib/libQtGui.so.4
#41 0x00007f0e1156a07c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#42 0x00007f0e1157134e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#43 0x00007f0e1219d8f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#44 0x00007f0e137cebfc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#45 0x00007f0e11b2b3ad in QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#46 0x00007f0e11b2fb0e in QGraphicsView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#47 0x00007f0e115b8932 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#48 0x00007f0e11911d26 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#49 0x00007f0e11b2f32b in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#50 0x00007f0e137cdf47 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#51 0x00007f0e1156a04c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#52 0x00007f0e11571191 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#53 0x00007f0e1219d8f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#54 0x00007f0e137cebfc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#55 0x00007f0e11570a60 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#56 0x00007f0e115d6a04 in ?? () from /usr/lib/libQtGui.so.4
#57 0x00007f0e115d56da in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#58 0x00007f0e115fd96c in ?? () from /usr/lib/libQtGui.so.4
#59 0x00007f0e104c926e in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#60 0x00007f0e104ccc28 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#61 0x00007f0e104ccd50 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#62 0x00007f0e137f7123 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#63 0x00007f0e115fd14e in ?? () from /usr/lib/libQtGui.so.4
#64 0x00007f0e137cd532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#65 0x00007f0e137cd904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#66 0x00007f0e137cfab9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#67 0x00007f0e0806d28f in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#68 0x0000000000406eae in _start ()

This bug may be a duplicate of or related to bug 207872

Reported using DrKonqi