Thread 1 (Thread 0x7ffff7f9c5c0 (LWP 2265)):
#0  0x00007ffff1302179 in poll () at /lib64/libc.so.6
#1  0x00007ffff635a387 in _xcb_conn_wait () at /usr/lib64/libxcb.so.1
#2  0x00007ffff635c09a in xcb_wait_for_special_event () at /usr/lib64/libxcb.so.1
#3  0x00007fffd139240b in dri3_wait_for_event_locked () at /usr/lib64/libGLX_mesa.so.0
#4  0x00007fffd1392568 in dri3_find_back () at /usr/lib64/libGLX_mesa.so.0
#5  0x00007fffd139364e in dri3_get_buffer.isra () at /usr/lib64/libGLX_mesa.so.0
#6  0x00007fffd139441f in loader_dri3_get_buffers () at /usr/lib64/libGLX_mesa.so.0
#7  0x00007fff476713cf in intel_update_renderbuffers () at /usr/lib64/dri/i965_dri.so
#8  0x00007fff476716d1 in intel_prepare_render () at /usr/lib64/dri/i965_dri.so
#9  0x00007fff4766cbbc in brw_clear () at /usr/lib64/dri/i965_dri.so
#10 0x00007ffff577e467 in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib64/libQt5Quick.so.5
#11 0x00007ffff5783acc in QSGBatchRenderer::Renderer::render() () at /usr/lib64/libQt5Quick.so.5
---Type <return> to continue, or q <return> to quit---
#12 0x00007ffff577493d in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib64/libQt5Quick.so.5
#13 0x00007ffff5774dcb in QSGRenderer::renderScene(unsigned int) () at /usr/lib64/libQt5Quick.so.5
#14 0x00007ffff57ac940 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib64/libQt5Quick.so.5
#15 0x00007ffff580afe8 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib64/libQt5Quick.so.5
#16 0x00007ffff579f784 in  () at /usr/lib64/libQt5Quick.so.5
#17 0x00007ffff5815b1e in QQuickWindow::event(QEvent*) () at /usr/lib64/libQt5Quick.so.5
#18 0x0000555555583a4b in  ()
#19 0x00007ffff2dc601c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#20 0x00007ffff2dcd314 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#21 0x00007ffff1be9148 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#22 0x00007ffff21754c1 in QWindowPrivate::deliverUpdateRequest() () at /usr/lib64/libQt5Gui.so.5
#23 0x00007ffff2175989 in QWindow::event(QEvent*) () at /usr/lib64/libQt5Gui.so.5
#24 0x00007ffff5815ad5 in QQuickWindow::event(QEvent*) () at /usr/lib64/libQt5Quick.so.5
#25 0x0000555555583a4b in  ()
#26 0x00007ffff2dc601c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#27 0x00007ffff2dcd314 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#28 0x00007ffff1be9148 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#29 0x00007ffff1c3ffbe in QTimerInfoList::activateTimers() () at /usr/lib64/libQt5Core.so.5
#30 0x00007ffff1c40709 in  () at /usr/lib64/libQt5Core.so.5
#31 0x00007fffeb919277 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#32 0x00007fffeb9194b0 in  () at /usr/lib64/libglib-2.0.so.0
#33 0x00007fffeb91953c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#34 0x00007ffff1c40a0f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
    at /usr/lib64/libQt5Core.so.5
#35 0x00007fffe3f4e781 in  () at /usr/lib64/libQt5XcbQpa.so.5
#36 0x00007ffff1be795a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#37 0x00007ffff1bf0494 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#38 0x0000555555574e23 in  ()
#39 0x00007ffff1234a87 in __libc_start_main () at /lib64/libc.so.6
#40 0x00005555555751ca in _start ()