Application: kded4 (4.13.0)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Ubuntu 14.04 LTS

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

- Unusual behavior I noticed:
The was somethingun usual, 'cos the first time I open each menu, no items were displayed. Only when I clicked a second time, the items were shown

- Custom settings of the application:
I'm using the "Top screen menubar" option on the "Menubar style" in KDE style settings

-- Backtrace:
Application: KDE Daemon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f24e0de17c0 (LWP 1820))]

Thread 6 (Thread 0x7f24c4992700 (LWP 1823)):
#0  0x00007f24de645fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f24db743fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24db7440ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24dfa7f7be in QEventDispatcherGlib::processEvents (this=0x7f24bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f24dfa510af in QEventLoop::processEvents (this=this@entry=0x7f24c4991e20, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f24dfa513a5 in QEventLoop::exec (this=this@entry=0x7f24c4991e20, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f24df94dc5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#7  0x00007f24df95032f in QThreadPrivate::start (arg=0x213d1d0) at thread/qthread_unix.cpp:349
#8  0x00007f24dbe26182 in start_thread (arg=0x7f24c4992700) at pthread_create.c:312
#9  0x00007f24de65330d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f24bb940700 (LWP 1831)):
#0  0x00007fff9b9fea1f in ?? ()
#1  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f24ab9e1700 (LWP 1857)):
#0  0x00007f24dbe28569 in __GI___pthread_mutex_lock (mutex=0x7f24a0000a60) at ../nptl/pthread_mutex_lock.c:125
#1  0x00007f24db785991 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24db743699 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24db743f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24db7440ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f24dfa7f7be in QEventDispatcherGlib::processEvents (this=0x7f24a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f24dfa510af in QEventLoop::processEvents (this=this@entry=0x7f24ab9e0de0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f24dfa513a5 in QEventLoop::exec (this=this@entry=0x7f24ab9e0de0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f24df94dc5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#9  0x00007f24c1f99027 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#10 0x00007f24df95032f in QThreadPrivate::start (arg=0x22adfa0) at thread/qthread_unix.cpp:349
#11 0x00007f24dbe26182 in start_thread (arg=0x7f24ab9e1700) at pthread_create.c:312
#12 0x00007f24de65330d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f24ab1e0700 (LWP 1858)):
#0  0x00007f24de6446bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f24db784c20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24db743b14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24db743f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24db7440ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f24dfa7f7be in QEventDispatcherGlib::processEvents (this=0x7f24980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f24dfa510af in QEventLoop::processEvents (this=this@entry=0x7f24ab1dfe20, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f24dfa513a5 in QEventLoop::exec (this=this@entry=0x7f24ab1dfe20, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f24df94dc5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#9  0x00007f24df95032f in QThreadPrivate::start (arg=0x22bb090) at thread/qthread_unix.cpp:349
#10 0x00007f24dbe26182 in start_thread (arg=0x7f24ab1e0700) at pthread_create.c:312
#11 0x00007f24de65330d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f2489f0c700 (LWP 1975)):
#0  0x00007f24dbe28569 in __GI___pthread_mutex_lock (mutex=0x7f2484000a60) at ../nptl/pthread_mutex_lock.c:125
#1  0x00007f24db785991 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24db743ed5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24db7440ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24dfa7f7be in QEventDispatcherGlib::processEvents (this=0x7f24840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007f24dfa510af in QEventLoop::processEvents (this=this@entry=0x7f2489f0bde0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f24dfa513a5 in QEventLoop::exec (this=this@entry=0x7f2489f0bde0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f24df94dc5f in QThread::exec (this=this@entry=0x21421e0) at thread/qthread.cpp:537
#8  0x00007f24dfa32823 in QInotifyFileSystemWatcherEngine::run (this=0x21421e0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f24df95032f in QThreadPrivate::start (arg=0x21421e0) at thread/qthread_unix.cpp:349
#10 0x00007f24dbe26182 in start_thread (arg=0x7f2489f0c700) at pthread_create.c:312
#11 0x00007f24de65330d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f24e0de17c0 (LWP 1820)):
[KCrash Handler]
#5  0x00007f24dfa69f73 in QMetaObject::changeGuard (ptr=ptr@entry=0x21bdc80, o=0x3d82f10) at kernel/qobject.cpp:445
#6  0x00007f24df3b30ac in operator= (p=<optimized out>, this=0x21bdc80) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#7  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0x21bdaa0, event=0x7fff9b8df7a0) at graphicsview/qgraphicsproxywidget.cpp:284
#8  0x00007f24df395592 in QGraphicsItem::sceneEvent (this=0x402d280, event=0x7fff9b8df7a0) at graphicsview/qgraphicsitem.cpp:6755
#9  0x00007f24df3bc5af in QGraphicsScenePrivate::sendMouseEvent (this=0x251cdb0, mouseEvent=0x7fff9b8df7a0) at graphicsview/qgraphicsscene.cpp:1295
#10 0x00007f24df3c521f in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fff9b8df7a0) at graphicsview/qgraphicsscene.cpp:4128
#11 0x00007f24df3d1140 in QGraphicsScene::event (this=0x249c1b0, event=0x7fff9b8df7a0) at graphicsview/qgraphicsscene.cpp:3458
#12 0x00007f24dedebe2c in QApplicationPrivate::notify_helper (this=this@entry=0x1f1a700, receiver=receiver@entry=0x249c1b0, e=e@entry=0x7fff9b8df7a0) at kernel/qapplication.cpp:4567
#13 0x00007f24dedf24a0 in QApplication::notify (this=0x7fff9b8e0580, receiver=0x249c1b0, e=0x7fff9b8df7a0) at kernel/qapplication.cpp:4353
#14 0x00007f24e07d1baa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#15 0x00007f24dfa524dd in QCoreApplication::notifyInternal (this=0x7fff9b8e0580, receiver=0x249c1b0, event=event@entry=0x7fff9b8df7a0) at kernel/qcoreapplication.cpp:953
#16 0x00007f24dedea556 in sendSpontaneousEvent (event=event@entry=0x7fff9b8df7a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#17 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff9b8df7a0) at kernel/qapplication.cpp:5565
#18 0x00007f24df3e7d97 in QGraphicsView::mouseReleaseEvent (this=0x2502d00, event=0x7fff9b8dfd00) at graphicsview/qgraphicsview.cpp:3338
#19 0x00007f24dee3b50a in QWidget::event (this=this@entry=0x2502d00, event=event@entry=0x7fff9b8dfd00) at kernel/qwidget.cpp:8376
#20 0x00007f24df1dcfce in QFrame::event (this=0x2502d00, e=0x7fff9b8dfd00) at widgets/qframe.cpp:557
#21 0x00007f24df3e87b9 in QGraphicsView::viewportEvent (this=0x2502d00, event=0x7fff9b8dfd00) at graphicsview/qgraphicsview.cpp:2866
#22 0x00007f24dfa52646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1f1a700, receiver=receiver@entry=0x25186d0, event=event@entry=0x7fff9b8dfd00) at kernel/qcoreapplication.cpp:1063
#23 0x00007f24dedebe0c in QApplicationPrivate::notify_helper (this=this@entry=0x1f1a700, receiver=receiver@entry=0x25186d0, e=e@entry=0x7fff9b8dfd00) at kernel/qapplication.cpp:4563
#24 0x00007f24dedf25dd in QApplication::notify (this=<optimized out>, receiver=0x25186d0, e=0x7fff9b8dfd00) at kernel/qapplication.cpp:4110
#25 0x00007f24e07d1baa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#26 0x00007f24dfa524dd in QCoreApplication::notifyInternal (this=0x7fff9b8e0580, receiver=receiver@entry=0x25186d0, event=event@entry=0x7fff9b8dfd00) at kernel/qcoreapplication.cpp:953
#27 0x00007f24dedf1d93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#28 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x25186d0, event=event@entry=0x7fff9b8dfd00, alienWidget=alienWidget@entry=0x25186d0, nativeWidget=nativeWidget@entry=0x2502d00, buttonDown=buttonDown@entry=0x7f24df8d1318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#29 0x00007f24dee669cb in QETWidget::translateMouseEvent (this=this@entry=0x2502d00, event=event@entry=0x7fff9b8e0080) at kernel/qapplication_x11.cpp:4634
#30 0x00007f24dee66269 in QApplication::x11ProcessEvent (this=0x7fff9b8e0580, event=event@entry=0x7fff9b8e0080) at kernel/qapplication_x11.cpp:3627
#31 0x00007f24dee8db02 in x11EventSourceDispatch (s=0x1f1beb0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007f24db743e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f24db744048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f24db7440ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f24dfa7f7a1 in QEventDispatcherGlib::processEvents (this=0x1e80460, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#36 0x00007f24dee8dbb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f24dfa510af in QEventLoop::processEvents (this=this@entry=0x7fff9b8e0450, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007f24dfa513a5 in QEventLoop::exec (this=this@entry=0x7fff9b8e0450, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007f24dfa56b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#40 0x00007f24ca269d1b in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kded4.so
#41 0x00000000004083ee in _start ()

Possible duplicates by query: bug 332662, bug 331293, bug 328758.

Reported using DrKonqi