kwin_x11 (version 5.4.2 in openSUSE Tumbleweed) crashes on session start (every time). After disabling drkonqui, kwin is restarted successfully and works fine after that. I was able to get a core dump but it's a bit large (over 2 GB, xz-compressed 2.7 MB) so I'm not going to attach it for now. Stack trace looks like this: raise KCrash::defaultCrashHandler(int) <signal handler called> as<QV4::RegExpObject> toVariant QV4::ExecutionEngine::toVariant QQmlPropertyPrivate::writeBinding QQmlBinding::update setEnabled QQmlObjectCreator::finalize QQmlComponentPrivate::complete QQmlComponentPrivate::completeCreate QQmlComponent::create Aurorae::Decoration::init KWin::Decoration::DecorationBridge::createDecoration KWin::Client::createDecoration KWin::Client::updateDecoration KWin::Client::manage KWin::Workspace::createClient KWin::Workspace::workspaceEvent QAbstractEventDispatcher::filterNativeEvent(QByteArray QXcbConnection::handleXcbEvent(xcb_generic_event_t*) QXcbConnection::processXcbEvents() QObject::event(QEvent*) QApplicationPrivate::notify_helper(QObject*, QApplication::notify(QObject*, QCoreApplication::notifyInternal(QObject*, QCoreApplicationPrivate::sendPostedEvents(QObject*, QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ?? QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) QCoreApplication::exec() kdemain __libc_start_main _start I'll attach full output of "bt full" in a moment. It looks like something isn't properly initialized yet and the code can't handle it. Unfortunately this part of Qt5 is not documented very well so I have no idea what the v4engine is supposed to do. Reproducible: Always
This is very most likely bug #352259 *** This bug has been marked as a duplicate of bug 352259 ***
Created attachment 95473 [details] output of "bt full" gdb command