Application: plasma-desktop (4.11.5)
KDE Platform Version: 4.11.5
Qt Version: 4.8.5
Operating System: Linux 3.12.10-300.fc20.x86_64 x86_64
Distribution: "Fedora release 20 (Heisenbug)"

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

I don't remember well what I was doing when Plasma crashed. Maybe I was moving Firefox windows from desktop n.2 to desktop n.1

-- 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 0x7f7dbd0dc900 (LWP 1429))]

Thread 3 (Thread 0x7f7dabf28700 (LWP 1436)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000398298f09b in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x3982c8df00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x000000398298f0d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00000039852aa8f4 in ?? () from /usr/lib64/nvidia-304xx/libGL.so.1
#4  0x000000396e807f33 in start_thread (arg=0x7f7dabf28700) at pthread_create.c:309
#5  0x000000396dcf4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f7d1ac6a700 (LWP 1437)):
#0  __pthread_mutex_unlock_usercnt (decr=1, mutex=0x7f7d14000a90) at pthread_mutex_unlock.c:59
#1  __GI___pthread_mutex_unlock (mutex=0x7f7d14000a90) at pthread_mutex_unlock.c:310
#2  0x000000396fc8a5d1 in g_mutex_unlock (mutex=mutex@entry=0x7f7d140009d0) at gthread-posix.c:232
#3  0x000000396fc496e6 in g_main_context_iteration (context=0x7f7d140009d0, may_block=<optimized out>) at gmain.c:3775
#4  0x00000039759b2ec6 in QEventDispatcherGlib::processEvents (this=0x7f7d140008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#5  0x0000003975982edf in QEventLoop::processEvents (this=this@entry=0x7f7d1ac69bc0, flags=...) at kernel/qeventloop.cpp:149
#6  0x000000397598322d in QEventLoop::exec (this=this@entry=0x7f7d1ac69bc0, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003975879baf in QThread::exec (this=this@entry=0x2bd27d0) at thread/qthread.cpp:536
#8  0x0000003975963863 in QInotifyFileSystemWatcherEngine::run (this=0x2bd27d0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x000000397587c3af in QThreadPrivate::start (arg=0x2bd27d0) at thread/qthread_unix.cpp:338
#10 0x00000039852aa8f4 in ?? () from /usr/lib64/nvidia-304xx/libGL.so.1
#11 0x000000396e807f33 in start_thread (arg=0x7f7d1ac6a700) at pthread_create.c:309
#12 0x000000396dcf4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f7dbd0dc900 (LWP 1429)):
[KCrash Handler]
#6  0x0000003975996247 in QObject::startTimer (this=this@entry=0x5605480, interval=800) at kernel/qobject.cpp:1583
#7  0x00000039759a21e6 in QTimer::start (this=0x5605480) at kernel/qtimer.cpp:218
#8  0x00007f7da9e660d2 in MouseEventListener::mousePressEvent(QGraphicsSceneMouseEvent*) () from /usr/lib64/kde4/imports/org/kde/qtextracomponents/libqtextracomponentsplugin.so
#9  0x00000039771a0d1a in QGraphicsItem::sceneEvent (this=this@entry=0x4b69dd0, event=event@entry=0x7fffa91a3d20) at graphicsview/qgraphicsitem.cpp:6747
#10 0x0000003986355354 in QDeclarativeItem::sceneEvent (this=0x4b69dc0, event=0x7fffa91a3d20) at graphicsitems/qdeclarativeitem.cpp:3047
#11 0x00000039771c9acf in QGraphicsScenePrivate::sendMouseEvent (this=0x1e62400, mouseEvent=0x7fffa91a3d20) at graphicsview/qgraphicsscene.cpp:1295
#12 0x00000039771d5bd6 in QGraphicsScenePrivate::mousePressEventHandler (this=this@entry=0x1e62400, mouseEvent=mouseEvent@entry=0x7fffa91a3d20) at graphicsview/qgraphicsscene.cpp:1422
#13 0x00000039771d6079 in QGraphicsScene::mousePressEvent (this=<optimized out>, mouseEvent=0x7fffa91a3d20) at graphicsview/qgraphicsscene.cpp:4074
#14 0x00000039771df110 in QGraphicsScene::event (this=0x1e30b30, event=0x7fffa91a3d20) at graphicsview/qgraphicsscene.cpp:3455
#15 0x0000003976bc9d8c in QApplicationPrivate::notify_helper (this=0x1de8410, receiver=0x1e30b30, e=0x7fffa91a3d20) at kernel/qapplication.cpp:4562
#16 0x0000003976bd0725 in QApplication::notify (this=this@entry=0x1d83660, receiver=receiver@entry=0x1e30b30, e=e@entry=0x7fffa91a3d20) at kernel/qapplication.cpp:4348
#17 0x000000397e44a7da in KApplication::notify (this=0x1d83660, receiver=0x1e30b30, event=0x7fffa91a3d20) at /usr/src/debug/kdelibs-4.11.5/kdeui/kernel/kapplication.cpp:311
#18 0x000000397598439d in QCoreApplication::notifyInternal (this=0x1d83660, receiver=0x1e30b30, event=event@entry=0x7fffa91a3d20) at kernel/qcoreapplication.cpp:949
#19 0x0000003976bc8606 in sendSpontaneousEvent (event=event@entry=0x7fffa91a3d20, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:234
#20 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fffa91a3d20) at kernel/qapplication.cpp:5560
#21 0x00000039771f6caf in QGraphicsView::mousePressEvent (this=0x40e5310, event=0x7fffa91a4310) at graphicsview/qgraphicsview.cpp:3164
#22 0x0000003976c1cc71 in QWidget::event (this=this@entry=0x40e5310, event=event@entry=0x7fffa91a4310) at kernel/qwidget.cpp:8372
#23 0x0000003976fd315e in QFrame::event (this=0x40e5310, e=0x7fffa91a4310) at widgets/qframe.cpp:557
#24 0x00000039771f7a99 in QGraphicsView::viewportEvent (this=0x40e5310, event=0x7fffa91a4310) at graphicsview/qgraphicsview.cpp:2866
#25 0x0000003975984506 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x40fb440, event=0x7fffa91a4310) at kernel/qcoreapplication.cpp:1059
#26 0x0000003976bc9d6c in QApplicationPrivate::notify_helper (this=0x1de8410, receiver=0x40fb440, e=0x7fffa91a4310) at kernel/qapplication.cpp:4558
#27 0x0000003976bd0879 in QApplication::notify (this=this@entry=0x1d83660, receiver=receiver@entry=0x40fb440, e=e@entry=0x7fffa91a4310) at kernel/qapplication.cpp:4105
#28 0x000000397e44a7da in KApplication::notify (this=0x1d83660, receiver=0x40fb440, event=0x7fffa91a4310) at /usr/src/debug/kdelibs-4.11.5/kdeui/kernel/kapplication.cpp:311
#29 0x000000397598439d in QCoreApplication::notifyInternal (this=0x1d83660, receiver=0x40fb440, event=0x7fffa91a4310) at kernel/qcoreapplication.cpp:949
#30 0x0000003976bcffa7 in QApplicationPrivate::sendMouseEvent (receiver=0x40fb440, event=0x7fffa91a4310, alienWidget=0x40fb440, nativeWidget=0x40e5310, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:231
#31 0x0000003976c456ab in QETWidget::translateMouseEvent (this=0x40e5310, event=<optimized out>) at kernel/qapplication_x11.cpp:4538
#32 0x0000003976c4411c in QApplication::x11ProcessEvent (this=0x1d83660, event=event@entry=0x7fffa91a4680) at kernel/qapplication_x11.cpp:3661
#33 0x0000003976c6bb24 in x11EventSourceDispatch (s=s@entry=0x1de57a0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#34 0x000000396fc492a6 in g_main_dispatch (context=0x1de87a0) at gmain.c:3066
#35 g_main_context_dispatch (context=context@entry=0x1de87a0) at gmain.c:3642
#36 0x000000396fc49628 in g_main_context_iterate (context=context@entry=0x1de87a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3713
#37 0x000000396fc496dc in g_main_context_iteration (context=0x1de87a0, may_block=1) at gmain.c:3774
#38 0x00000039759b2ea5 in QEventDispatcherGlib::processEvents (this=0x1d1d9b0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#39 0x0000003976c6bca6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#40 0x0000003975982edf in QEventLoop::processEvents (this=this@entry=0x7fffa91a4a70, flags=...) at kernel/qeventloop.cpp:149
#41 0x000000397598322d in QEventLoop::exec (this=this@entry=0x7fffa91a4a70, flags=...) at kernel/qeventloop.cpp:204
#42 0x0000003975988749 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#43 0x0000003976bc83fc in QApplication::exec () at kernel/qapplication.cpp:3823
#44 0x0000003986c3d9bc in kdemain (argc=1, argv=0x7fffa91a4ce8) at /usr/src/debug/kde-workspace-4.11.5/plasma/desktop/shell/main.cpp:126
#45 0x000000396dc21d65 in __libc_start_main (main=0x400940 <main(int, char**)>, argc=1, argv=0x7fffa91a4ce8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa91a4cd8) at libc-start.c:285
#46 0x0000000000400971 in _start ()

Possible duplicates by query: bug 328123, bug 327139.

Reported using DrKonqi