Application: plasma-desktop (4.11.5)
KDE Platform Version: 4.11.5
Qt Version: 4.8.5
Operating System: Linux 3.12.6-300.fc20.x86_64 x86_64
Distribution: "Fedora release 20 (Heisenbug)"

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

I was switching applications between the two desktop I have, when Plasma crashed suddendly

-- Backtrace:
Application: Shell del desktop di Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f2539edf900 (LWP 1447))]

Thread 3 (Thread 0x7f2528d51700 (LWP 1454)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000035ee38f08b in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x35ee68ef00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00000035ee38f0c9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00000035edeaa8f4 in ?? () from /usr/lib64/nvidia-304xx/libGL.so.1
#4  0x00000035da207f33 in start_thread (arg=0x7f2528d51700) at pthread_create.c:309
#5  0x00000035d96f4ead in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f249806a700 (LWP 1455)):
#0  0x00000035da20a0d8 in __GI___pthread_mutex_lock (mutex=0x7f2490000a90) at ../nptl/pthread_mutex_lock.c:125
#1  0x00000035db68a5a1 in g_mutex_lock (mutex=mutex@entry=0x7f24900009d0) at gthread-posix.c:213
#2  0x00000035db6496c8 in g_main_context_iteration (context=0x7f24900009d0, may_block=1) at gmain.c:3773
#3  0x00000035e0fb31a6 in QEventDispatcherGlib::processEvents (this=0x7f24900008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#4  0x00000035e0f8312f in QEventLoop::processEvents (this=this@entry=0x7f2498069bc0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00000035e0f8347d in QEventLoop::exec (this=this@entry=0x7f2498069bc0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00000035e0e79bdf in QThread::exec (this=this@entry=0x2e34eb0) at thread/qthread.cpp:536
#7  0x00000035e0f63a93 in QInotifyFileSystemWatcherEngine::run (this=0x2e34eb0) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00000035e0e7c3df in QThreadPrivate::start (arg=0x2e34eb0) at thread/qthread_unix.cpp:338
#9  0x00000035edeaa8f4 in ?? () from /usr/lib64/nvidia-304xx/libGL.so.1
#10 0x00000035da207f33 in start_thread (arg=0x7f249806a700) at pthread_create.c:309
#11 0x00000035d96f4ead in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f2539edf900 (LWP 1447)):
[KCrash Handler]
#6  0x00000035e0f75c09 in QAbstractEventDispatcher::registerTimer (this=0x35f1dc0290 <QDeclarativeExpression::~QDeclarativeExpression()>, interval=800, object=object@entry=0x55f8f90) at kernel/qabstracteventdispatcher.cpp:381
#7  0x00000035e0f96509 in QObject::startTimer (this=this@entry=0x55f8f90, interval=<optimized out>) at kernel/qobject.cpp:1587
#8  0x00000035e0fa24a6 in QTimer::start (this=0x55f8f90) at kernel/qtimer.cpp:218
#9  0x00007f24a2ca6ea5 in MouseEventListener::sceneEventFilter(QGraphicsItem*, QEvent*) () from /usr/lib64/kde4/imports/org/kde/qtextracomponents/libqtextracomponentsplugin.so
#10 0x00000035e27c59b5 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x16fe2d0, item=item@entry=0x46abc70, event=event@entry=0x7fff18c8c6a0) at graphicsview/qgraphicsscene.cpp:1159
#11 0x00000035e27ca4be in QGraphicsScenePrivate::sendEvent (this=0x16fe2d0, item=0x46abc70, event=0x7fff18c8c6a0) at graphicsview/qgraphicsscene.cpp:1211
#12 0x00000035e27ca9ff in QGraphicsScenePrivate::sendMouseEvent (this=0x16fe2d0, mouseEvent=0x7fff18c8c6a0) at graphicsview/qgraphicsscene.cpp:1295
#13 0x00000035e27d6b26 in QGraphicsScenePrivate::mousePressEventHandler (this=this@entry=0x16fe2d0, mouseEvent=mouseEvent@entry=0x7fff18c8c6a0) at graphicsview/qgraphicsscene.cpp:1422
#14 0x00000035e27d6fc9 in QGraphicsScene::mousePressEvent (this=<optimized out>, mouseEvent=0x7fff18c8c6a0) at graphicsview/qgraphicsscene.cpp:4074
#15 0x00000035e27e0090 in QGraphicsScene::event (this=0x182d530, event=0x7fff18c8c6a0) at graphicsview/qgraphicsscene.cpp:3455
#16 0x00000035e21c9dfc in QApplicationPrivate::notify_helper (this=0x1654ed0, receiver=0x182d530, e=0x7fff18c8c6a0) at kernel/qapplication.cpp:4562
#17 0x00000035e21d0795 in QApplication::notify (this=this@entry=0x16096c0, receiver=receiver@entry=0x182d530, e=e@entry=0x7fff18c8c6a0) at kernel/qapplication.cpp:4348
#18 0x00000035e8e4a7da in KApplication::notify (this=0x16096c0, receiver=0x182d530, event=0x7fff18c8c6a0) at /usr/src/debug/kdelibs-4.11.5/kdeui/kernel/kapplication.cpp:311
#19 0x00000035e0f845ed in QCoreApplication::notifyInternal (this=0x16096c0, receiver=0x182d530, event=event@entry=0x7fff18c8c6a0) at kernel/qcoreapplication.cpp:949
#20 0x00000035e21c8676 in sendSpontaneousEvent (event=event@entry=0x7fff18c8c6a0, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:234
#21 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff18c8c6a0) at kernel/qapplication.cpp:5560
#22 0x00000035e27f7c3f in QGraphicsView::mousePressEvent (this=0x1a0be30, event=0x7fff18c8cc90) at graphicsview/qgraphicsview.cpp:3164
#23 0x00000035e221cd83 in QWidget::event (this=this@entry=0x1a0be30, event=event@entry=0x7fff18c8cc90) at kernel/qwidget.cpp:8372
#24 0x00000035e25d3bbe in QFrame::event (this=0x1a0be30, e=0x7fff18c8cc90) at widgets/qframe.cpp:557
#25 0x00000035e27f8a29 in QGraphicsView::viewportEvent (this=0x1a0be30, event=0x7fff18c8cc90) at graphicsview/qgraphicsview.cpp:2866
#26 0x00000035e0f84756 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x39ff6c0, event=0x7fff18c8cc90) at kernel/qcoreapplication.cpp:1059
#27 0x00000035e21c9ddc in QApplicationPrivate::notify_helper (this=0x1654ed0, receiver=0x39ff6c0, e=0x7fff18c8cc90) at kernel/qapplication.cpp:4558
#28 0x00000035e21d08e9 in QApplication::notify (this=this@entry=0x16096c0, receiver=receiver@entry=0x39ff6c0, e=e@entry=0x7fff18c8cc90) at kernel/qapplication.cpp:4105
#29 0x00000035e8e4a7da in KApplication::notify (this=0x16096c0, receiver=0x39ff6c0, event=0x7fff18c8cc90) at /usr/src/debug/kdelibs-4.11.5/kdeui/kernel/kapplication.cpp:311
#30 0x00000035e0f845ed in QCoreApplication::notifyInternal (this=0x16096c0, receiver=0x39ff6c0, event=0x7fff18c8cc90) at kernel/qcoreapplication.cpp:949
#31 0x00000035e21d0017 in QApplicationPrivate::sendMouseEvent (receiver=0x39ff6c0, event=0x7fff18c8cc90, alienWidget=0x39ff6c0, nativeWidget=0x1a0be30, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:231
#32 0x00000035e22457cb in QETWidget::translateMouseEvent (this=0x1a0be30, event=<optimized out>) at kernel/qapplication_x11.cpp:4538
#33 0x00000035e224423c in QApplication::x11ProcessEvent (this=0x16096c0, event=event@entry=0x7fff18c8d000) at kernel/qapplication_x11.cpp:3661
#34 0x00000035e226bc34 in x11EventSourceDispatch (s=s@entry=0x16526c0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#35 0x00000035db6492a6 in g_main_dispatch (context=0x1655260) at gmain.c:3066
#36 g_main_context_dispatch (context=context@entry=0x1655260) at gmain.c:3642
#37 0x00000035db649628 in g_main_context_iterate (context=context@entry=0x1655260, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3713
#38 0x00000035db6496dc in g_main_context_iteration (context=0x1655260, may_block=1) at gmain.c:3774
#39 0x00000035e0fb3185 in QEventDispatcherGlib::processEvents (this=0x158a9b0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#40 0x00000035e226bdb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#41 0x00000035e0f8312f in QEventLoop::processEvents (this=this@entry=0x7fff18c8d3f0, flags=...) at kernel/qeventloop.cpp:149
#42 0x00000035e0f8347d in QEventLoop::exec (this=this@entry=0x7fff18c8d3f0, flags=...) at kernel/qeventloop.cpp:204
#43 0x00000035e0f889bb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#44 0x00000035e21c846c in QApplication::exec () at kernel/qapplication.cpp:3823
#45 0x00000035f263d9bc in kdemain (argc=1, argv=0x7fff18c8d668) at /usr/src/debug/kde-workspace-4.11.5/plasma/desktop/shell/main.cpp:126
#46 0x00000035d9621d65 in __libc_start_main (main=0x400940 <main(int, char**)>, argc=1, argv=0x7fff18c8d668, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff18c8d658) at libc-start.c:285
#47 0x0000000000400971 in _start ()

Reported using DrKonqi