Bug 366097

Application: kwin_x11 (5.7.1)

Qt Version: 5.6.1
Frameworks Version: 5.24.0
Operating System: Linux 4.6.4-201.fc23.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
The system has just been loaded and I logged in.

- Unusual behavior I noticed:
I've recently upgraded Fedora 22 up to 23 version. Some time before that I started facing strange rendering issues (screen flickering when scrolling the webpages in the browser, with bad rendering rudiments - the browser window was re-drawn only partially). 

I believe those issues are connected somehow.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f88ab874940 (LWP 2370))]

Thread 7 (Thread 0x7f88a420d700 (LWP 2431)):
#0  0x00007f88bbd88b1d in poll () at /lib64/libc.so.6
#1  0x00007f88be4df272 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f88be4e0ee7 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f88a4cb9039 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f88bc99400c in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f88bec0861a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f88bbd9459d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f88a2ace700 (LWP 2432)):
#0  0x00007f88bbd8a8a3 in select () at /lib64/libc.so.6
#1  0x00007f88bcb7b03f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /lib64/libQt5Core.so.5
#2  0x00007f88bcb7c6ee in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /lib64/libQt5Core.so.5
#3  0x00007f88bcb7cc02 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f88bcb2f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f88bc98fbd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f88be70c675 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#7  0x00007f88bc99400c in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f88bec0861a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f88bbd9459d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f8893fff700 (LWP 2446)):
#0  0x00007f88bbd8a8a3 in select () at /lib64/libc.so.6
#1  0x00007f88bcb7b03f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /lib64/libQt5Core.so.5
#2  0x00007f88bcb7c6ee in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /lib64/libQt5Core.so.5
#3  0x00007f88bcb7cc02 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f88bcb2f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f88bc98fbd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f88c389c7f5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f88bc99400c in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f88bec0861a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f88bbd9459d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f8891852700 (LWP 2451)):
#0  0x00007f88bec0db20 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f88929a2e43 in radeon_drm_cs_emit_ioctl () at /usr/lib64/dri/r600_dri.so
#2  0x00007f88929a2597 in impl_thrd_routine () at /usr/lib64/dri/r600_dri.so
#3  0x00007f88bec0861a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f88bbd9459d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f8889b2c700 (LWP 2465)):
#0  0x00007f88bec0db20 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f88c464b2e4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f88c464b329 in  () at /lib64/libQt5Script.so.5
#3  0x00007f88bec0861a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f88bbd9459d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f88019fd700 (LWP 2891)):
#0  0x00007f88bbd8a8a3 in select () at /lib64/libc.so.6
#1  0x00007f88bcb7b03f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /lib64/libQt5Core.so.5
#2  0x00007f88bcb7c6ee in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /lib64/libQt5Core.so.5
#3  0x00007f88bcb7cc02 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f88bcb2f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f88bc98fbd4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f88c389c7f5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f88bc99400c in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f88bec0861a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f88bbd9459d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f88ab874940 (LWP 2370)):
[KCrash Handler]
#6  0x00007f88c3888739 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#7  0x00007f88c388964a in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#8  0x00007f88c389296f in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /lib64/libQt5Qml.so.5
#9  0x00007f88c381f36e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /lib64/libQt5Qml.so.5
#10 0x00007f88c381f437 in QQmlComponentPrivate::completeCreate() () at /lib64/libQt5Qml.so.5
#11 0x00007f88c381f2a0 in QQmlComponent::create(QQmlContext*) () at /lib64/libQt5Qml.so.5
#12 0x00007f88a0881187 in Aurorae::Decoration::init() () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007f88c5056431 in KWin::Decoration::DecorationBridge::createDecoration(KWin::AbstractClient*) () at /lib64/libkwin.so.5
#14 0x00007f88c4f3ee59 in KWin::Client::createDecoration(QRect const&) () at /lib64/libkwin.so.5
#15 0x00007f88c4f3f813 in KWin::Client::updateDecoration(bool, bool) () at /lib64/libkwin.so.5
#16 0x00007f88c4f9b401 in KWin::Client::manage(unsigned int, bool) () at /lib64/libkwin.so.5
#17 0x00007f88c4f22aef in KWin::Workspace::createClient(unsigned int, bool) () at /lib64/libkwin.so.5
#18 0x00007f88c4f88df4 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /lib64/libkwin.so.5
#19 0x00007f88bcb2e33c in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /lib64/libQt5Core.so.5
#20 0x00007f88a4cbcfb5 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /lib64/libQt5XcbQpa.so.5
#21 0x00007f88a4cbdf16 in QXcbConnection::processXcbEvents() () at /lib64/libQt5XcbQpa.so.5
#22 0x00007f88bcb58871 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#23 0x00007f88bd3c010c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#24 0x00007f88bd3c5646 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#25 0x00007f88bcb303ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#26 0x00007f88bcb3240a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#27 0x00007f88bcb7cae2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#28 0x00007f88a4d2cfdd in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5XcbQpa.so.5
#29 0x00007f88bcb2f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#30 0x00007f88bcb36bdc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#31 0x00007f88c534f636 in kdemain () at /lib64/libkdeinit5_kwin_x11.so
#32 0x00007f88bbcb2580 in __libc_start_main () at /lib64/libc.so.6
#33 0x0000564b1e0aad49 in _start ()

Possible duplicates by query: bug 366096, bug 365988, bug 365896, bug 365842, bug 365644.

Reported using DrKonqi