434459 2021-03-15 19:28:55 +0000 Kwin crash when ALT+TAB after waking laptop from sleep 2021-03-15 23:43:17 +0000 1 1 4 Plasma kwin general 5.20.5 Fedora RPMs Linux RESOLVED DUPLICATE 414823 drkonqi NOR crash --- 0 rabin kwin-bugs-null nate 0 oldest_to_newest 2015581 0 rabin 2021-03-15 19:28:55 +0000 Application: kwin_x11 (5.20.5) Qt Version: 5.15.2 Frameworks Version: 5.79.0 Operating System: Linux 5.10.19-200.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: This happen a lot, - putting the laptop to sleep, - and then when I wake up the lapotp if I try to ALT+TAB to switch windows, kwin will crash. - but it will respown and after that, everting works... (until the next sleep,resume cycle) The crash can be reproduced sometimes. -- Backtrace: Application: KWin (kwin_x11), signal: Segmentation fault [KCrash Handler] #4 0x00007fe37a493bfb in QXcbConnection::glIntegration() const () from /lib64/libQt5XcbQpa.so.5 #5 0x00007fe37a495a05 in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const () from /lib64/libQt5XcbQpa.so.5 #6 0x00007fe38e09d071 in QOpenGLContext::create() () from /lib64/libQt5Gui.so.5 #7 0x00007fe38c8483aa in QSGRenderThread::syncAndRender(QImage*) () from /lib64/libQt5Quick.so.5 #8 0x00007fe38c84b7cf in QSGRenderThread::run() () from /lib64/libQt5Quick.so.5 #9 0x00007fe38da8bdf0 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5 #10 0x00007fe38cf123f9 in start_thread () from /lib64/libpthread.so.0 #11 0x00007fe38d6c7b53 in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7fe31ca6f640 (LWP 3445656) "kwin_x11"): #1 0x00007fe38d3b6cec in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5 #2 0x00007fe38d3b6d1f in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5 #3 0x00007fe38cf123f9 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fe38d6c7b53 in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7fe353fff640 (LWP 3445645) "QQmlThread"): #1 0x00007fe38dc6f9c9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib64/libQt5Core.so.5 #2 0x00007fe38dc70d43 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #3 0x00007fe38dc2557b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #4 0x00007fe38da8ab67 in QThread::exec() () from /lib64/libQt5Core.so.5 #5 0x00007fe38c4d15ec in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5 #6 0x00007fe38da8bdf0 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5 #7 0x00007fe38cf123f9 in start_thread () from /lib64/libpthread.so.0 #8 0x00007fe38d6c7b53 in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7fe370ee4640 (LWP 3445631) "QQmlThread"): #1 0x00007fe38dc6f9c9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib64/libQt5Core.so.5 #2 0x00007fe38dc70d43 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #3 0x00007fe38dc2557b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #4 0x00007fe38da8ab67 in QThread::exec() () from /lib64/libQt5Core.so.5 #5 0x00007fe38c4d15ec in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5 #6 0x00007fe38da8bdf0 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5 #7 0x00007fe38cf123f9 in start_thread () from /lib64/libpthread.so.0 #8 0x00007fe38d6c7b53 in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7fe3796c8640 (LWP 3445619) "QDBusConnection"): #1 0x00007fe38dc6f9c9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib64/libQt5Core.so.5 #2 0x00007fe38dc70d43 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #3 0x00007fe38dc2557b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #4 0x00007fe38da8ab67 in QThread::exec() () from /lib64/libQt5Core.so.5 #5 0x00007fe38ed0b10b in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5 #6 0x00007fe38da8bdf0 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5 #7 0x00007fe38cf123f9 in start_thread () from /lib64/libpthread.so.0 #8 0x00007fe38d6c7b53 in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7fe387ad60c0 (LWP 3445615) "kwin_x11"): #1 0x00007fe38da919bb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt5Core.so.5 #2 0x00007fe38c847426 in QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) () from /lib64/libQt5Quick.so.5 #3 0x00007fe38c84ca39 in QSGThreadedRenderLoop::exposureChanged(QQuickWindow*) () from /lib64/libQt5Quick.so.5 #4 0x00007fe38e06d7b5 in QWindow::event(QEvent*) () from /lib64/libQt5Gui.so.5 #5 0x00007fe38e6bbec3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5 #6 0x00007fe38dc26bd8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5 #7 0x00007fe38e0637d5 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /lib64/libQt5Gui.so.5 #8 0x00007fe38e0438cc in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Gui.so.5 #9 0x00007fe37a4b6867 in QXcbUnixEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5 #10 0x00007fe38dc2557b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #11 0x00007fe38dc2d1b4 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5 #12 0x000055a2131a0aff in main () [Inferior 1 (process 3445615) detached] The reporter indicates this bug may be a duplicate of or related to bug 417796. Possible duplicates by query: bug 432604, bug 422489, bug 422283, bug 417796, bug 416886. Reported using DrKonqi 2015652 1 nate 2021-03-15 23:43:17 +0000 *** This bug has been marked as a duplicate of bug 414823 ***