Application: kwin_x11 (5.3.0) Qt Version: 5.4.1 Operating System: Linux 4.0.4-301.fc22.i686+PAE i686 Distribution (Platform): Fedora RPMs -- Information about the crash: - What I was doing when the application crashed: installing bind from command line and had one other konsole window open. -- Backtrace: Application: KWin (kwin_x11), signal: Segmentation fault Using host libthread_db library "/lib/libthread_db.so.1". [Current thread is 1 (Thread 0xb76d1800 (LWP 3701))] Thread 3 (Thread 0xb5381b40 (LWP 3726)): #0 0xb7715be8 in __kernel_vsyscall () #1 0x4b3a97b1 in select () from /lib/libc.so.6 #2 0x4cfb5d95 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib/libQt5Core.so.5 #3 0x4cfb790d in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib/libQt5Core.so.5 #4 0x4cfb7e1f in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5 #5 0x4cf57b37 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5 #6 0x4cf57fb4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5 #7 0x4cd6b19c in QThread::exec() () from /lib/libQt5Core.so.5 #8 0x42a82b70 in QQmlThreadPrivate::run() () from /lib/sse2/libQt5Qml.so.5 #9 0x4cd70e50 in QThreadPrivate::start(void*) () from /lib/libQt5Core.so.5 #10 0x4b497380 in start_thread () from /lib/libpthread.so.0 #11 0x4b3b3d4e in clone () from /lib/libc.so.6 Thread 2 (Thread 0xb3bafb40 (LWP 3815)): #0 0xb7715be8 in __kernel_vsyscall () #1 0x4b49be3c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #2 0x4b3c180d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libc.so.6 #3 0x425610fe in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib/libQt5Script.so.5 #4 0x42561140 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib/libQt5Script.so.5 #5 0x4b497380 in start_thread () from /lib/libpthread.so.0 #6 0x4b3b3d4e in clone () from /lib/libc.so.6 Thread 1 (Thread 0xb76d1800 (LWP 3701)): [KCrash Handler] #6 0x00000000 in ?? () #7 0xb3db6cd0 in run_vertex_stage () from /usr/lib/dri/radeon_dri.so #8 0xb3da2548 in _tnl_run_pipeline () from /usr/lib/dri/radeon_dri.so #9 0xb409295c in radeonWrapRunPipeline () from /usr/lib/dri/radeon_dri.so #10 0xb3da1c69 in _tnl_draw_prims () from /usr/lib/dri/radeon_dri.so #11 0xb3d86c3a in vbo_validated_drawrangeelements () from /usr/lib/dri/radeon_dri.so #12 0xb3d871ac in vbo_exec_DrawElements () from /usr/lib/dri/radeon_dri.so #13 0x4c6f50ac in glDrawElements () from /lib/libGL.so.1 #14 0x42cdd46c in QSGBatchRenderer::Renderer::renderMergedBatch(QSGBatchRenderer::Batch const*) () from /lib/libQt5Quick.so.5 #15 0x42cdddd0 in QSGBatchRenderer::Renderer::renderBatches() () from /lib/libQt5Quick.so.5 #16 0x42ce28f8 in QSGBatchRenderer::Renderer::render() () from /lib/libQt5Quick.so.5 #17 0x42cee4ee in QSGRenderer::renderScene(QSGBindable const&) () from /lib/libQt5Quick.so.5 #18 0x42ceeb23 in QSGRenderer::renderScene(unsigned int) () from /lib/libQt5Quick.so.5 #19 0x42cff880 in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /lib/libQt5Quick.so.5 #20 0x42d53567 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /lib/libQt5Quick.so.5 #21 0x42d1da79 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () from /lib/libQt5Quick.so.5 #22 0x42d1f1a7 in QSGGuiThreadRenderLoop::exposureChanged(QQuickWindow*) () from /lib/libQt5Quick.so.5 #23 0x42d4e6e1 in QQuickWindow::exposeEvent(QExposeEvent*) () from /lib/libQt5Quick.so.5 #24 0x4d26bd59 in QWindow::event(QEvent*) () from /lib/libQt5Gui.so.5 #25 0x42d5d0ec in QQuickWindow::event(QEvent*) () from /lib/libQt5Quick.so.5 #26 0xaeeae16c in PlasmaQuick::Dialog::event(QEvent*) () from /lib/libKF5PlasmaQuick.so.5 #27 0x4d7b5f64 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/libQt5Widgets.so.5 #28 0x4d7bbd22 in QApplication::notify(QObject*, QEvent*) () from /lib/libQt5Widgets.so.5 #29 0x4154d545 in KWin::Application::notify(QObject*, QEvent*) () from /lib/libkwin.so.5 #30 0x4cf5af85 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib/libQt5Core.so.5 #31 0x4d262ffe in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /lib/libQt5Gui.so.5 #32 0x4d264000 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib/libQt5Gui.so.5 #33 0x4d244df6 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Gui.so.5 #34 0xb736b960 in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/qt5/plugins/platforms/libqxcb.so #35 0x4cf57b37 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5 #36 0x4cf57fb4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5 #37 0x4cf60a6a in QCoreApplication::exec() () from /lib/libQt5Core.so.5 #38 0x4d258ee5 in QGuiApplication::exec() () from /lib/libQt5Gui.so.5 #39 0x4d7b1aa5 in QApplication::exec() () from /lib/libQt5Widgets.so.5 #40 0x4c137ffc in kdemain () from /lib/libkdeinit5_kwin_x11.so #41 0x08048a08 in main () Reported using DrKonqi
Smells upstream (Qt) - pretty much bug #346729, to a minor degree bug #334884 Crash trigger was likely rather invocation of th tabbox ("Alt+Tab") ? (nb. that bug #346729 is intel while this is radeon - so if it's not in some shared MESA code, it'll be QtQuick)
Crash in QtQuick in combination with driver. Sorry there is nothing we can do about that.