Bug 372495

Application: kwin_x11 (5.8.3)

Qt Version: 5.7.0
Frameworks Version: 5.27.0
Operating System: Linux 4.8.6-2-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
-Suse Studio ImageWrite opened, Konsole opened, Dolphin opened, Opened Kate... then crash

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 0x7f8dda5c4940 (LWP 2246))]

Thread 5 (Thread 0x7f8db116c700 (LWP 2448)):
#0  0x00007f8dd9f4d751 in ppoll () at /lib64/libc.so.6
#1  0x00007f8dd7621b41 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f8dd7623428 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f8dd75d01ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f8dd73fe8b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#5  0x00007f8dd1d99a75 in  () at /usr/lib64/libQt5Qml.so.5
#6  0x00007f8dd7403558 in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f8dd3268454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f8dd9f5639f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f8db096b700 (LWP 2366)):
#0  0x00007f8dd326e10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f8dd658b834 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f8dd658b879 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f8dd3268454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f8dd9f5639f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f8db3d57700 (LWP 2354)):
#0  0x00007f8dd9f4d751 in ppoll () at /lib64/libc.so.6
#1  0x00007f8dd7621b41 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f8dd7623428 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f8dd75d01ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f8dd73fe8b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#5  0x00007f8dd1d99a75 in  () at /usr/lib64/libQt5Qml.so.5
#6  0x00007f8dd7403558 in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f8dd3268454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f8dd9f5639f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f8dc30bc700 (LWP 2267)):
#0  0x00007f8dd9f4d68d in poll () at /lib64/libc.so.6
#1  0x00007f8dcea43876 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f8dcea4398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f8dd762679b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f8dd75d01ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f8dd73fe8b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f8dd0f723e5 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007f8dd7403558 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f8dd3268454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8dd9f5639f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f8dda5c4940 (LWP 2246)):
[KCrash Handler]
#6  0x00007f8dd1d85130 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f8dd1d86095 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f8dd1d8fd35 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f8dd1d195fe in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f8dd1d196c7 in QQmlComponentPrivate::completeCreate() () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f8dd1d19530 in QQmlComponent::create(QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f8db3d774b7 in  () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007f8dd9b75ed9 in  () at /usr/lib64/libkwin.so.5
#14 0x00007f8dd9a56572 in KWin::Client::createDecoration(QRect const&) () at /usr/lib64/libkwin.so.5
#15 0x00007f8dd9a5715d in KWin::Client::updateDecoration(bool, bool) () at /usr/lib64/libkwin.so.5
#16 0x00007f8dd9ab6175 in KWin::Client::manage(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#17 0x00007f8dd9a39a84 in KWin::Workspace::createClient(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#18 0x00007f8dd9aa3387 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /usr/lib64/libkwin.so.5
#19 0x00007f8dd75cf32f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f8dc0b46dc4 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib64/libQt5XcbQpa.so.5
#21 0x00007f8dc0b47a55 in QXcbConnection::processXcbEvents() () at /usr/lib64/libQt5XcbQpa.so.5
#22 0x00007f8dd75fed59 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#23 0x00007f8dd82c792c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#24 0x00007f8dd82cf0e1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#25 0x00007f8dd75d2200 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f8dd75d498d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f8dd762326a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#28 0x00007f8dc0bbe54d in  () at /usr/lib64/libQt5XcbQpa.so.5
#29 0x00007f8dd75d01ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#30 0x00007f8dd75d895c in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#31 0x00007f8dda215a56 in kdemain () at /usr/lib64/libkdeinit5_kwin_x11.so
#32 0x00007f8dd9e8d291 in __libc_start_main () at /lib64/libc.so.6
#33 0x00000000004006ea in _start ()

Reported using DrKonqi