Application: kwin (4.11.9)
KDE Platform Version: 4.12.5 (Compiled from sources)
Qt Version: 4.8.5
Operating System: Linux 3.12.21-gentoo-r1-f1r31c3r-NV x86_64
Distribution: "NAME=Gentoo"

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

- Custom settings of the application:

Custom window settings for unity game engine for interstellar marines. As soon as i right click window manager bar to select the menus it crashes.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff798c38800 (LWP 6963))]

Thread 2 (Thread 0x7ff773575700 (LWP 6978)):
#0  0x00007ff79222012d in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007ff79763a0ab in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/qt4/libQtScript.so.4
#2  0x00007ff79763a0f9 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtScript.so.4
#3  0x00007ff79221c039 in start_thread () from /lib64/libpthread.so.0
#4  0x00007ff79844513d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff798c38800 (LWP 6963)):
[KCrash Handler]
#5  0x00007ff79173dda5 in QActionGroup::addAction(QAction*) () from /usr/lib64/qt4/libQtGui.so.4
#6  0x00007ff7987ab3ec in KWin::UserActionsMenu::activityPopupAboutToShow() () from /usr/lib64/libkdeinit4_kwin.so
#7  0x00007ff7925c89a8 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007ff791b518bd in QMenu::popup(QPoint const&, QAction*) () from /usr/lib64/qt4/libQtGui.so.4
#9  0x00007ff791b52f9b in QMenu::internalDelayedPopup() () from /usr/lib64/qt4/libQtGui.so.4
#10 0x00007ff791b54a14 in QMenu::timerEvent(QTimerEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#11 0x00007ff7925ccc31 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x00007ff7917915cb in QWidget::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#13 0x00007ff791b5705b in QMenu::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#14 0x00007ff791740eec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#15 0x00007ff791747650 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#16 0x00007ff797083b3a in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#17 0x00007ff7925b49dd in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#18 0x00007ff7925e4aa3 in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4
#19 0x00007ff7925e5490 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#20 0x00007ff7917e04d1 in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#21 0x00007ff7925b361f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#22 0x00007ff7925b3915 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#23 0x00007ff791b55e37 in QMenu::exec(QPoint const&, QAction*) () from /usr/lib64/qt4/libQtGui.so.4
#24 0x00007ff7987a7cda in KWin::UserActionsMenu::show(QRect const&, QWeakPointer<KWin::Client> const&) () from /usr/lib64/libkdeinit4_kwin.so
#25 0x00007ff7987a7d9b in KWin::Workspace::showWindowMenu(QRect const&, KWin::Client*) () from /usr/lib64/libkdeinit4_kwin.so
#26 0x00007ff79879bd3e in KWin::Bridge::showWindowMenu(QPoint const&) () from /usr/lib64/libkdeinit4_kwin.so
#27 0x00007ff798148d58 in KDecoration::showWindowMenu(QPoint) () from /usr/lib64/libkdecorations.so.4
#28 0x00007ff773580c4f in Aurorae::AuroraeClient::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.54] () from /usr/lib64/kde4/kwin3_aurorae.so
#29 0x00007ff773581583 in Aurorae::AuroraeClient::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/kde4/kwin3_aurorae.so
#30 0x00007ff797bb8ba6 in QDeclarativeObjectMethodScriptClass::callMethod(QObject*, int, int, int, int*, QScriptContext*) () from /usr/lib64/qt4/libQtDeclarative.so.4
#31 0x00007ff797bba1db in QDeclarativeObjectMethodScriptClass::callPrecise(QObject*, QDeclarativePropertyCache::Data const&, QScriptContext*) () from /usr/lib64/qt4/libQtDeclarative.so.4
#32 0x00007ff797bbac8b in QDeclarativeObjectMethodScriptClass::call(QScriptDeclarativeClass::Object*, QScriptContext*) () from /usr/lib64/qt4/libQtDeclarative.so.4
#33 0x00007ff7976b2334 in QScript::DeclarativeObjectDelegate::call(QTJSC::ExecState*, QTJSC::JSObject*, QTJSC::JSValue, QTJSC::ArgList const&) () from /usr/lib64/qt4/libQtScript.so.4
#34 0x00007ff7975aba08 in QTJSC::NativeFuncWrapper::operator()(QTJSC::ExecState*, QTJSC::JSObject*, QTJSC::JSValue, QTJSC::ArgList const&) const () from /usr/lib64/qt4/libQtScript.so.4
#35 0x00007ff797589770 in cti_op_call_NotJSFunction () from /usr/lib64/qt4/libQtScript.so.4
#36 0x00007ff6e41001d3 in ?? ()
#37 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 336006, bug 335459, bug 335378, bug 335244, bug 335230.

Reported using DrKonqi