Bug 316527

Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.00
Qt Version: 4.8.4
Operating System: Linux 3.8.1-desktop-1.mga3 x86_64
Distribution: "Mageia 3"

-- Information about the crash:
- What I was doing when the application crashed:

Adding Widget to panel left side. Widget disappeared, next try give a crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe41366b780 (LWP 5152))]

Thread 3 (Thread 0x7fe3f0c28700 (LWP 5154)):
#0  0x00007fe411f205c4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fe3fe4fd207 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQtScript.so.4
#2  0x00007fe3fe4fd239 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQtScript.so.4
#3  0x00007fe411f1cd18 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fe410caf87d in clone () from /lib64/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe3623ed700 (LWP 5159)):
#0  0x00007fe410ca5e4d in poll () from /lib64/libc.so.6
#1  0x00007fe40dde69a4 in g_main_context_iterate.isra.24 () from /lib64/libglib-2.0.so.0
#2  0x00007fe40dde6ac4 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fe4122d75e6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#4  0x00007fe4122a7f5f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#5  0x00007fe4122a81e8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x00007fe4121a9610 in QThread::exec() () from /lib64/libQtCore.so.4
#7  0x00007fe4122887af in QInotifyFileSystemWatcherEngine::run() () from /lib64/libQtCore.so.4
#8  0x00007fe4121ac5ec in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#9  0x00007fe411f1cd18 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe410caf87d in clone () from /lib64/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe41366b780 (LWP 5152)):
[KCrash Handler]
#5  0x00007fe4122be3d9 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#6  0x00007fe36cf9f351 in DeclarativeDragArea::drop(int) () from /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#7  0x00007fe36cfa19b6 in DeclarativeDragArea::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#8  0x00007fe36cfa1a79 in DeclarativeDragArea::sceneEventFilter(QGraphicsItem*, QEvent*) () from /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#9  0x00007fe411a1cae5 in QGraphicsScenePrivate::filterDescendantEvent(QGraphicsItem*, QEvent*) () from /lib64/libQtGui.so.4
#10 0x00007fe411a22b8e in QGraphicsScenePrivate::sendEvent(QGraphicsItem*, QEvent*) () from /lib64/libQtGui.so.4
#11 0x00007fe411a237b0 in QGraphicsScenePrivate::sendMouseEvent(QGraphicsSceneMouseEvent*) () from /lib64/libQtGui.so.4
#12 0x00007fe411a242ec in QGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /lib64/libQtGui.so.4
#13 0x00007fe411a365f0 in QGraphicsScene::event(QEvent*) () from /lib64/libQtGui.so.4
#14 0x00007fe41143e30c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#15 0x00007fe41144278a in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#16 0x00007fe413055c56 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#17 0x00007fe4122a920e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#18 0x00007fe411a497d4 in QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent*) () from /lib64/libQtGui.so.4
#19 0x00007fe411a4c84e in QGraphicsView::mouseMoveEvent(QMouseEvent*) () from /lib64/libQtGui.so.4
#20 0x00007fe41148dcbb in QWidget::event(QEvent*) () from /lib64/libQtGui.so.4
#21 0x00007fe411838216 in QFrame::event(QEvent*) () from /lib64/libQtGui.so.4
#22 0x00007fe411a4fb6b in QGraphicsView::viewportEvent(QEvent*) () from /lib64/libQtGui.so.4
#23 0x00007fe4122a9376 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#24 0x00007fe41143e2dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#25 0x00007fe411442feb in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#26 0x00007fe413055c56 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#27 0x00007fe4122a920e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#28 0x00007fe41143f14b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /lib64/libQtGui.so.4
#29 0x00007fe4114b9824 in QETWidget::translateMouseEvent(_XEvent const*) () from /lib64/libQtGui.so.4
#30 0x00007fe4114b85b1 in QApplication::x11ProcessEvent(_XEvent*) () from /lib64/libQtGui.so.4
#31 0x00007fe4114de6d2 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtGui.so.4
#32 0x00007fe40dde66d5 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#33 0x00007fe40dde6a08 in g_main_context_iterate.isra.24 () from /lib64/libglib-2.0.so.0
#34 0x00007fe40dde6ac4 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#35 0x00007fe4122d75c6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#36 0x00007fe4114de34e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#37 0x00007fe4122a7f5f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#38 0x00007fe4122a81e8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#39 0x00007fe4114c66b6 in QDragManager::drag(QDrag*) () from /lib64/libQtGui.so.4
#40 0x00007fe41144f798 in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () from /lib64/libQtGui.so.4
#41 0x00007fe36cfa19ac in DeclarativeDragArea::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#42 0x00007fe36cfa1a79 in DeclarativeDragArea::sceneEventFilter(QGraphicsItem*, QEvent*) () from /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#43 0x00007fe411a1cae5 in QGraphicsScenePrivate::filterDescendantEvent(QGraphicsItem*, QEvent*) () from /lib64/libQtGui.so.4
#44 0x00007fe411a22b8e in QGraphicsScenePrivate::sendEvent(QGraphicsItem*, QEvent*) () from /lib64/libQtGui.so.4
#45 0x00007fe411a237b0 in QGraphicsScenePrivate::sendMouseEvent(QGraphicsSceneMouseEvent*) () from /lib64/libQtGui.so.4
#46 0x00007fe411a242ec in QGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /lib64/libQtGui.so.4
#47 0x00007fe411a365f0 in QGraphicsScene::event(QEvent*) () from /lib64/libQtGui.so.4
#48 0x00007fe41143e30c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#49 0x00007fe41144278a in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#50 0x00007fe413055c56 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#51 0x00007fe4122a920e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#52 0x00007fe411a497d4 in QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent*) () from /lib64/libQtGui.so.4
#53 0x00007fe411a4c84e in QGraphicsView::mouseMoveEvent(QMouseEvent*) () from /lib64/libQtGui.so.4
#54 0x00007fe41148dcbb in QWidget::event(QEvent*) () from /lib64/libQtGui.so.4
#55 0x00007fe411838216 in QFrame::event(QEvent*) () from /lib64/libQtGui.so.4
#56 0x00007fe411a4fb6b in QGraphicsView::viewportEvent(QEvent*) () from /lib64/libQtGui.so.4
#57 0x00007fe4122a9376 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#58 0x00007fe41143e2dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#59 0x00007fe411442feb in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#60 0x00007fe413055c56 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#61 0x00007fe4122a920e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#62 0x00007fe41143f14b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /lib64/libQtGui.so.4
#63 0x00007fe4114b9824 in QETWidget::translateMouseEvent(_XEvent const*) () from /lib64/libQtGui.so.4
#64 0x00007fe4114b85b1 in QApplication::x11ProcessEvent(_XEvent*) () from /lib64/libQtGui.so.4
#65 0x00007fe4114de6d2 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtGui.so.4
#66 0x00007fe40dde66d5 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#67 0x00007fe40dde6a08 in g_main_context_iterate.isra.24 () from /lib64/libglib-2.0.so.0
#68 0x00007fe40dde6ac4 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#69 0x00007fe4122d75c6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#70 0x00007fe4114de34e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#71 0x00007fe4122a7f5f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#72 0x00007fe4122a81e8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#73 0x00007fe4122acfd8 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#74 0x00007fe3f6ff5171 in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#75 0x0000000000408405 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#76 0x00000000004092eb in handle_launcher_request(int, char const*) [clone .isra.13] ()
#77 0x0000000000409940 in handle_requests(int) ()
#78 0x0000000000405361 in main ()

This bug may be a duplicate of or related to bug 310523.

Possible duplicates by query: bug 315253, bug 314851, bug 314137, bug 313876, bug 312934.

Reported using DrKonqi