Application: kwin_x11 (5.8.0)

Qt Version: 5.6.1
Frameworks Version: 5.27.0
Operating System: Linux 4.8.1-desktop-1.mga6 x86_64
Distribution: "Mageia 6"

-- Information about the crash:
- What I was doing when the application crashed:
I've just clicked on a link in a Facebook discussion.

- Unusual behavior I noticed:
Few minutes earlier, I've noticed a shift (décalage, en Français) on the screen.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9fa286d840 (LWP 21294))]

Thread 5 (Thread 0x7f9f6cde4700 (LWP 24467)):
#0  0x00007f9fa2146dd3 in select () from /lib64/libc.so.6
#1  0x00007f9f9ffb4e5f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f9f9ffb677b in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007f9f9ffb6c42 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f9f9ff64c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f9f9fd9e37c in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f9f9b1c1805 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f9f9fda2fb9 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f9fa241566d in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9fa2150ded in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f9f6f7fe700 (LWP 21375)):
#0  0x00007f9fa241ac4f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9f9f146234 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f9f9f146279 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f9fa241566d in start_thread () from /lib64/libpthread.so.0
#4  0x00007f9fa2150ded in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f9f83340700 (LWP 21368)):
#0  0x00007f9fa2146dd3 in select () from /lib64/libc.so.6
#1  0x00007f9f9ffb4e5f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f9f9ffb677b in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007f9f9ffb6c42 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f9f9ff64c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f9f9fd9e37c in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f9f9b1c1805 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f9f9fda2fb9 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f9fa241566d in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9fa2150ded in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f9f88f0a700 (LWP 21304)):
#0  0x00007f9fa2146dd3 in select () from /lib64/libc.so.6
#1  0x00007f9f9ffb4e5f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f9f9ffb677b in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007f9f9ffb6c42 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f9f9ff64c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f9f9fd9e37c in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f9fa298a615 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#7  0x00007f9f9fda2fb9 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f9fa241566d in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9fa2150ded in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f9fa286d840 (LWP 21294)):
[KCrash Handler]
#6  0x00007f9f9b1adf89 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /lib64/libQt5Qml.so.5
#7  0x00007f9f9b1aee5a in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /lib64/libQt5Qml.so.5
#8  0x00007f9f9b1b7d02 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from /lib64/libQt5Qml.so.5
#9  0x00007f9f9b1490b4 in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () from /lib64/libQt5Qml.so.5
#10 0x00007f9f9b149187 in QQmlComponentPrivate::completeCreate() () from /lib64/libQt5Qml.so.5
#11 0x00007f9f9b149020 in QQmlComponent::create(QQmlContext*) () from /lib64/libQt5Qml.so.5
#12 0x00007f9f8357be94 in Aurorae::Decoration::init() () from /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007f9fa1d64542 in KWin::Decoration::DecorationBridge::createDecoration(KWin::AbstractClient*) () from /lib64/libkwin.so.5
#14 0x00007f9fa1c505a9 in KWin::Client::createDecoration(QRect const&) () from /lib64/libkwin.so.5
#15 0x00007f9fa1c50f1b in KWin::Client::updateDecoration(bool, bool) () from /lib64/libkwin.so.5
#16 0x00007f9fa1cac8a8 in KWin::Client::manage(unsigned int, bool) () from /lib64/libkwin.so.5
#17 0x00007f9fa1c34b54 in KWin::Workspace::createClient(unsigned int, bool) () from /lib64/libkwin.so.5
#18 0x00007f9fa1c9a6b0 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () from /lib64/libkwin.so.5
#19 0x00007f9f9ff63ea7 in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /lib64/libQt5Core.so.5
#20 0x00007f9f8bf71145 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /lib64/libQt5XcbQpa.so.5
#21 0x00007f9f8bf72066 in QXcbConnection::processXcbEvents() () from /lib64/libQt5XcbQpa.so.5
#22 0x00007f9f9ff92bca in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#23 0x00007f9fa08cc90c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#24 0x00007f9fa08d1a76 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#25 0x00007f9f9ff66e18 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#26 0x00007f9f9ff68c3b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#27 0x00007f9f9ffb6b32 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#28 0x00007f9f8bfdb9bd in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5
#29 0x00007f9f9ff64c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#30 0x00007f9f9ff6d001 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#31 0x00007f9fa26340e6 in kdemain () from /lib64/libkdeinit5_kwin_x11.so
#32 0x00007f9fa207b600 in __libc_start_main () from /lib64/libc.so.6
#33 0x00000000004007b9 in _start ()

Possible duplicates by query: bug 370614, bug 370432, bug 369534, bug 369013, bug 368993.

Reported using DrKonqi