Bug 366198

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: "Fedora release 23 (Twenty Three)"

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

crash occurs shortly after login, there's no way to tell kwin crashed except the frowny emoticon appears on the systray

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff19291c940 (LWP 1689))]

Thread 6 (Thread 0x7ff18b2b9700 (LWP 1760)):
#0  0x00007ff1a2e2db1d in poll () from /lib64/libc.so.6
#1  0x00007ff1a5583272 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007ff1a5584ee7 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007ff18bd65039 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007ff1a3a3800c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007ff1a5cac61a in start_thread () from /lib64/libpthread.so.0
#6  0x00007ff1a2e3959d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7ff189bc3700 (LWP 1770)):
#0  0x00007ff1a3a310f9 in QMutex::lock() () from /lib64/libQt5Core.so.5
#1  0x00007ff1a3bd61fc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#2  0x00007ff1a3c20ae2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#3  0x00007ff1a3bd325a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007ff1a3a33bd4 in QThread::exec() () from /lib64/libQt5Core.so.5
#5  0x00007ff1a57b0675 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#6  0x00007ff1a3a3800c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#7  0x00007ff1a5cac61a in start_thread () from /lib64/libpthread.so.0
#8  0x00007ff1a2e3959d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7ff1835e0700 (LWP 1822)):
#0  0x00007ff1a2e2f8a3 in select () from /lib64/libc.so.6
#1  0x00007ff1a3c1f03f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007ff1a3c206ee in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007ff1a3c20c02 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007ff1a3bd325a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ff1a3a33bd4 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007ff1aa9407f5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007ff1a3a3800c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007ff1a5cac61a in start_thread () from /lib64/libpthread.so.0
#9  0x00007ff1a2e3959d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7ff1777fe700 (LWP 1837)):
#0  0x00007ff1a5cb1b20 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff1ab6ef2e4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007ff1ab6ef329 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007ff1a5cac61a in start_thread () from /lib64/libpthread.so.0
#4  0x00007ff1a2e3959d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7ff176bed700 (LWP 2044)):
#0  0x00007ff1a3bd2e6c in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#1  0x00007ff1a3bd325a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#2  0x00007ff1a3a33bd4 in QThread::exec() () from /lib64/libQt5Core.so.5
#3  0x00007ff1aa9407f5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#4  0x00007ff1a3a3800c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007ff1a5cac61a in start_thread () from /lib64/libpthread.so.0
#6  0x00007ff1a2e3959d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff19291c940 (LWP 1689)):
[KCrash Handler]
#6  0x00007ff1aa92c739 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /lib64/libQt5Qml.so.5
#7  0x00007ff1aa92d64a in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /lib64/libQt5Qml.so.5
#8  0x00007ff1aa93696f in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from /lib64/libQt5Qml.so.5
#9  0x00007ff1aa8c336e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () from /lib64/libQt5Qml.so.5
#10 0x00007ff1aa8c3437 in QQmlComponentPrivate::completeCreate() () from /lib64/libQt5Qml.so.5
#11 0x00007ff1aa8c32a0 in QQmlComponent::create(QQmlContext*) () from /lib64/libQt5Qml.so.5
#12 0x00007ff1881e3187 in Aurorae::Decoration::init() () from /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007ff1ac0fa431 in KWin::Decoration::DecorationBridge::createDecoration(KWin::AbstractClient*) () from /lib64/libkwin.so.5
#14 0x00007ff1abfe2e59 in KWin::Client::createDecoration(QRect const&) () from /lib64/libkwin.so.5
#15 0x00007ff1abfe3813 in KWin::Client::updateDecoration(bool, bool) () from /lib64/libkwin.so.5
#16 0x00007ff1ac03f401 in KWin::Client::manage(unsigned int, bool) () from /lib64/libkwin.so.5
#17 0x00007ff1abfc6aef in KWin::Workspace::createClient(unsigned int, bool) () from /lib64/libkwin.so.5
#18 0x00007ff1ac02cdf4 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () from /lib64/libkwin.so.5
#19 0x00007ff1a3bd233c in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /lib64/libQt5Core.so.5
#20 0x00007ff18bd68fb5 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /lib64/libQt5XcbQpa.so.5
#21 0x00007ff18bd69f16 in QXcbConnection::processXcbEvents() () from /lib64/libQt5XcbQpa.so.5
#22 0x00007ff1a3bfc871 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#23 0x00007ff1a446410c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#24 0x00007ff1a4469646 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#25 0x00007ff1a3bd43ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#26 0x00007ff1a3bd640a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#27 0x00007ff1a3c20ae2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#28 0x00007ff18bdd8fdd in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5
#29 0x00007ff1a3bd325a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#30 0x00007ff1a3bdabdc in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#31 0x00007ff1ac3f3636 in kdemain () from /lib64/libkdeinit5_kwin_x11.so
#32 0x00007ff1a2d57580 in __libc_start_main () from /lib64/libc.so.6
#33 0x0000556957eb5d49 in _start ()

Possible duplicates by query: bug 366126, bug 366097, bug 366096, bug 365988, bug 365896.

Reported using DrKonqi