Application: kwin_x11 (5.6.2)
 (Compiled from sources)
Qt Version: 5.5.1
Frameworks Version: 5.21.0
Operating System: Linux 4.2.0-gentoo x86_64
Distribution (Platform): Gentoo Packages

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

I was dragging the window of Popcorn Time to the edge of the screen in order to resize to 1/4 of the screen (create a tile).

(Gentoo Linux)

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f79a03ff7c0 (LWP 4641))]

Thread 4 (Thread 0x7f7982440700 (LWP 4676)):
#0  0x00007f799fcddad3 in select () from /lib64/libc.so.6
#1  0x00007f799e5b13bf in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f799e5b2b2e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib64/libQt5Core.so.5
#3  0x00007f799e5b305e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f799e56783a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f799e3c4834 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f7998a7bb85 in ?? () from /usr/lib64/libQt5Qml.so.5
#7  0x00007f799e3c8d72 in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f799ff9d484 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f799fce4e7d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f7979ad4700 (LWP 4704)):
#0  0x00007f799ffa310f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f799d550b14 in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007f799d550b59 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007f799ff9d484 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f799fce4e7d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f7982fc2700 (LWP 12115)):
#0  0x00007f799ffa310f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f799e3c93ea in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f7998f649de in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f7998f65263 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f799e3c8d72 in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f799ff9d484 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f799fce4e7d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f79a03ff7c0 (LWP 4641)):
[KCrash Handler]
#6  0x00007f799e8adb30 in QScreen::handle() const () from /usr/lib64/libQt5Gui.so.5
#7  0x00007f798aa72269 in QXcbIntegration::createPlatformWindow(QWindow*) const () from /usr/lib64/libQt5XcbQpa.so.5
#8  0x00007f799e8912a2 in QWindowPrivate::create(bool) () from /usr/lib64/libQt5Gui.so.5
#9  0x00007f799e8918d0 in QWindow::setVisible(bool) () from /usr/lib64/libQt5Gui.so.5
#10 0x00007f79990d9e3b in QQuickWindowQmlImpl::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Quick.so.5
#11 0x00007f79989f7d50 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib64/libQt5Qml.so.5
#12 0x00007f79989f986b in QQmlPropertyPrivate::writeValueProperty(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib64/libQt5Qml.so.5
#13 0x00007f79989fa2bc in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib64/libQt5Qml.so.5
#14 0x00007f7998a6809f in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib64/libQt5Qml.so.5
#15 0x00007f7998a684ce in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) () from /usr/lib64/libQt5Qml.so.5
#16 0x00007f7998a4442e in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib64/libQt5Qml.so.5
#17 0x00007f79989e6fcc in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib64/libQt5Qml.so.5
#18 0x00007f799e58faa0 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#19 0x00007f799f830e9d in ?? () from /usr/lib64/libkwin.so.5
#20 0x00007f799f871c3a in KWin::AbstractClient::setElectricBorderMaximizing(bool) () from /usr/lib64/libkwin.so.5
#21 0x00007f799f7ea1e8 in KWin::AbstractClient::checkQuickTilingMaximizationZones(int, int) () from /usr/lib64/libkwin.so.5
#22 0x00007f799f8342d6 in ?? () from /usr/lib64/libkwin.so.5
#23 0x00007f799f8356a1 in ?? () from /usr/lib64/libkwin.so.5
#24 0x00007f799f836dbb in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () from /usr/lib64/libkwin.so.5
#25 0x00007f799e56693c in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /usr/lib64/libQt5Core.so.5
#26 0x00007f798aa6e214 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /usr/lib64/libQt5XcbQpa.so.5
#27 0x00007f798aa6efc3 in QXcbConnection::processXcbEvents() () from /usr/lib64/libQt5XcbQpa.so.5
#28 0x00007f799e5910d1 in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f799eda092c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#30 0x00007f799eda5df6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#31 0x00007f799e56892d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#32 0x00007f799e56b476 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#33 0x00007f799e5b2f22 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#34 0x00007f798aad19cd in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#35 0x00007f799e56783a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#36 0x00007f799e56e8dc in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#37 0x00007f79a01b793f in kdemain () from /usr/lib64/libkdeinit5_kwin_x11.so
#38 0x00007f799fc1d710 in __libc_start_main () from /lib64/libc.so.6
#39 0x0000000000400809 in _start ()

Possible duplicates by query: bug 358605, bug 356144, bug 356107, bug 355882, bug 355118.

Reported using DrKonqi