431863 2021-01-21 00:18:57 +0000 kwin crash+restart when alt+tab between windows on different desktops 2021-02-09 17:48:02 +0000 1 1 4 Plasma kwin general 5.20.5 Fedora RPMs Linux RESOLVED DUPLICATE 432570 drkonqi NOR crash --- 0 joshua.rich kwin-bugs-null nate 0 oldest_to_newest 1996436 0 joshua.rich 2021-01-21 00:18:57 +0000 Application: kwin_x11 (5.20.5) Qt Version: 5.15.2 Frameworks Version: 5.78.0 Operating System: Linux 5.10.8-200.fc33.x86_64 x86_64 Windowing system: X11 Distribution: Fedora 33 (KDE Plasma) -- Information about the crash: - What I was doing when the application crashed: Alt+Tab switched between Zoom and Konsole windows (on different desktops). When I went to select text in Konsole, the GUI locked up briefly after which kwin crashed and restarted. After that, I can Alt+Tab and switch between windows (as well as selecting text) without issues. I can see under Compositor in System Settings that OpenGL compositing is disabled at this point (was enabled before the crash). The crash does not seem to be reproducible. -- Backtrace: Application: KWin (kwin_x11), signal: Segmentation fault [KCrash Handler] #3 0x00007f9e53ea29d5 in raise () at /lib64/libc.so.6 #4 0x00007f9e53e8b8a4 in abort () at /lib64/libc.so.6 #5 0x00007f9e542f548f in qt_message_output(QtMsgType, QMessageLogContext const&, QString const&) [clone .cold] () at /lib64/libQt5Core.so.5 #6 0x00007f9e38c29596 in QtPrivate::QFunctorSlotObject<KWin::X11StandalonePlatform::createOpenGLSafePoint(KWin::Platform::OpenGLSafePoint)::{lambda()#1}, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) [clone .lto_priv.0] () at /usr/lib64/qt5/plugins/org.kde.kwin.platforms/KWinX11Platform.so #7 0x00007f9e544f5386 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5 #8 0x00007f9e544f91fe in QTimer::timeout(QTimer::QPrivateSignal) () at /lib64/libQt5Core.so.5 #9 0x00007f9e544edc7f in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5 #10 0x00007f9e54f5aec3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5 #11 0x00007f9e544c5bd8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5 #12 0x00007f9e54511a03 in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5 #13 0x00007f9e5450fe6f in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #14 0x00007f9e544c457b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #15 0x00007f9e54329b67 in QThread::exec() () at /lib64/libQt5Core.so.5 #16 0x00007f9e5432adf0 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #17 0x00007f9e537b13f9 in start_thread () at /lib64/libpthread.so.0 #18 0x00007f9e53f66903 in clone () at /lib64/libc.so.6 Thread 7 (Thread 0x7f9d448c6640 (LWP 262631) "QSGRenderThread"): #1 0x00007f9e543309bb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5 #2 0x00007f9e530eac65 in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5 #3 0x00007f9e5432adf0 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #4 0x00007f9e537b13f9 in start_thread () at /lib64/libpthread.so.0 #5 0x00007f9e53f66903 in clone () at /lib64/libc.so.6 Thread 6 (Thread 0x7f9e15efd640 (LWP 5593) "CPMMListener"): #1 0x00007f9e39c15ee1 in () at /lib64/libnvidia-glcore.so.460.32.03 #2 0x00007f9e39c139ca in () at /lib64/libnvidia-glcore.so.460.32.03 #3 0x00007f9e537b13f9 in start_thread () at /lib64/libpthread.so.0 #4 0x00007f9e53f66903 in clone () at /lib64/libc.so.6 Thread 5 (Thread 0x7f9e18924640 (LWP 3122) "QQmlThread"): #1 0x00007f9e5450e9c9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /lib64/libQt5Core.so.5 #2 0x00007f9e5450fd43 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #3 0x00007f9e544c457b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #4 0x00007f9e54329b67 in QThread::exec() () at /lib64/libQt5Core.so.5 #5 0x00007f9e52d705ec in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #6 0x00007f9e5432adf0 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #7 0x00007f9e537b13f9 in start_thread () at /lib64/libpthread.so.0 #8 0x00007f9e53f66903 in clone () at /lib64/libc.so.6 Thread 4 (Thread 0x7f9e35a49640 (LWP 2342) "kwin_x11"): #1 0x00007f9e53c55cec in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5 #2 0x00007f9e53c55d1f in () at /lib64/libQt5Script.so.5 #3 0x00007f9e537b13f9 in start_thread () at /lib64/libpthread.so.0 #4 0x00007f9e53f66903 in clone () at /lib64/libc.so.6 Thread 3 (Thread 0x7f9e36c8a640 (LWP 2311) "QQmlThread"): #1 0x00007ffcd9b839e7 in clock_gettime () #2 0x00007f9e53f2d715 in clock_gettime@GLIBC_2.2.5 () at /lib64/libc.so.6 #3 0x00007f9e54511f95 in qt_gettime() () at /lib64/libQt5Core.so.5 #4 0x00007f9e545108dd in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5 #5 0x00007f9e54510d29 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5 #6 0x00007f9e5450ff34 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #7 0x00007f9e544c457b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #8 0x00007f9e54329b67 in QThread::exec() () at /lib64/libQt5Core.so.5 #9 0x00007f9e52d705ec in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #10 0x00007f9e5432adf0 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #11 0x00007f9e537b13f9 in start_thread () at /lib64/libpthread.so.0 #12 0x00007f9e53f66903 in clone () at /lib64/libc.so.6 Thread 2 (Thread 0x7f9e3869c640 (LWP 2287) "QDBusConnection"): #1 0x00007f9e5450e9c9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /lib64/libQt5Core.so.5 #2 0x00007f9e5450fd43 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #3 0x00007f9e544c457b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #4 0x00007f9e54329b67 in QThread::exec() () at /lib64/libQt5Core.so.5 #5 0x00007f9e555a910b in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5 #6 0x00007f9e5432adf0 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #7 0x00007f9e537b13f9 in start_thread () at /lib64/libpthread.so.0 #8 0x00007f9e53f66903 in clone () at /lib64/libc.so.6 Thread 1 (Thread 0x7f9e4e36d0c0 (LWP 2256) "kwin_x11"): #1 0x00007f9e556ce730 in KCrash::startProcess(int, char const**, bool) [clone .constprop.0] () at /lib64/libKF5Crash.so.5 #2 0x00007f9e556cf048 in KCrash::defaultCrashHandler(int) () at /lib64/libKF5Crash.so.5 #3 0x00007f9e53ea2a60 in <signal handler called> () at /lib64/libc.so.6 #4 0x0000000000000111 in () #5 0x00007f9e38af1564 in KWin::SceneOpenGL::createScene(QObject*) () at /usr/lib64/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so #6 0x00007f9e38b0041d in KWin::OpenGLFactory::create(QObject*) const () at /usr/lib64/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so #7 0x00007f9e558259e3 in KWin::Compositor::setupStart() [clone .part.0] () at /lib64/libkwin.so.5 #8 0x00007f9e5582903e in KWin::X11Compositor::start() () at /lib64/libkwin.so.5 #9 0x00007f9e55826e57 in KWin::Compositor::reinitialize() () at /lib64/libkwin.so.5 #10 0x00007f9e544f5386 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5 #11 0x00007f9e544edd1e in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5 #12 0x00007f9e54f5aec3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5 #13 0x00007f9e544c5bd8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5 #14 0x00007f9e544c88c7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5 #15 0x00007f9e5450fafe in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #16 0x00007f9e40d4b852 in QXcbUnixEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5XcbQpa.so.5 #17 0x00007f9e544c457b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #18 0x00007f9e544cc1b4 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5 #19 0x00005579edf69aff in main () [Inferior 1 (process 2256) detached] The reporter indicates this bug may be a duplicate of or related to bug 431328. Possible duplicates by query: bug 431795, bug 431783, bug 431773, bug 431564, bug 431529. Reported using DrKonqi 1996475 1 vlad.zahorodnii 2021-01-21 09:02:10 +0000 It sounds like a freeze occurred in OpenGL initialization. This might be a driver issue. 2001380 2 nate 2021-02-09 17:48:02 +0000 *** This bug has been marked as a duplicate of bug 432570 ***