Application: kwin_x11 (5.8.4)

Qt Version: 5.7.0
Frameworks Version: 5.28.0
Operating System: Linux 4.4.38-1-MANJARO x86_64
Distribution: "Manjaro Linux"

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

Estaba usando virtualbox cuando mando un error, de hecho estaba configurando una maquina virtual
Esperemos que la informacion les sirva

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd4efbc2840 (LWP 977))]

Thread 5 (Thread 0x7fd4bf7ff700 (LWP 1628)):
#0  0x00007fd4eccb0345 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#1  0x00007fd4ecc5d24a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd4eca800f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#3  0x00007fd4e75f62d5 in  () at /usr/lib/libQt5Qml.so.5
#4  0x00007fd4eca84d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fd4e8898454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fd4ef60a7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fd4b7fff700 (LWP 1128)):
#0  0x00007fd4e889e10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd4ebbf4ac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007fd4ebbf4b09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007fd4e8898454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd4ef60a7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fd4cca73700 (LWP 1123)):
#0  0x00007fd4ef601551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fd4eccaead9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd4eccb03c8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fd4ecc5d24a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd4eca800f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fd4e75f62d5 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007fd4eca84d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fd4e8898454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fd4ef60a7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fd4cf19b700 (LWP 1041)):
#0  0x00007fd4ef601551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fd4eccaead9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd4eccb03c8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fd4ecc5d24a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd4eca800f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fd4e67c0e55 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007fd4eca84d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fd4e8898454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fd4ef60a7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fd4efbc2840 (LWP 977)):
[KCrash Handler]
#6  0x0000000080000028 in  ()
#7  0x00007fd4ecc90d00 in QObject::connect(QObject const*, char const*, QObject const*, char const*, Qt::ConnectionType) () at /usr/lib/libQt5Core.so.5
#8  0x00007fd4ebc36f6f in  () at /usr/lib/libQt5Script.so.5
#9  0x00007fd4ebc37034 in  () at /usr/lib/libQt5Script.so.5
#10 0x00007fd4ebc372b2 in QScriptEngine::newQObject(QObject*, QScriptEngine::ValueOwnership, QFlags<QScriptEngine::QObjectWrapOption> const&) () at /usr/lib/libQt5Script.so.5
#11 0x00007fd4ef20b97c in  () at /usr/lib/libkwin.so.5
#12 0x00007fd4ebc37565 in  () at /usr/lib/libQt5Script.so.5
#13 0x00007fd4ebc5ffb6 in  () at /usr/lib/libQt5Script.so.5
#14 0x00007fd4ebc68281 in  () at /usr/lib/libQt5Script.so.5
#15 0x00007fd4ecc8a804 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#16 0x00007fd4ec43ffc8 in KWin::EffectsHandler::desktopPresenceChanged(KWin::EffectWindow*, int, int) () at /usr/lib/libkwineffects.so.9
#17 0x00007fd4ec441981 in  () at /usr/lib/libkwineffects.so.9
#18 0x00007fd4ecc8b4c9 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#19 0x00007fd4ed93ee0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#20 0x00007fd4ed946581 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007fd4ecc5edf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#22 0x00007fd4ecc6157d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#23 0x00007fd4eccb020a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#24 0x00007fd4d5ff017d in  () at /usr/lib/libQt5XcbQpa.so.5
#25 0x00007fd4ecc5d24a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#26 0x00007fd4ecc6574c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#27 0x00007fd4ef8c9495 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#28 0x00007fd4ef542291 in __libc_start_main () at /usr/lib/libc.so.6
#29 0x000000000040069a in _start ()

Reported using DrKonqi