Bug 482207

Application: kwin_x11 (5.27.10)

Qt Version: 5.15.12
Frameworks Version: 5.115.0
Operating System: Linux 6.7.6-200.fc39.x86_64 x86_64
Windowing System: X11
Distribution: "Fedora release 39 (Thirty Nine)"
DrKonqi: 5.27.10 [KCrashBackend]

-- Information about the crash:
At boot, during desktop load, Kwin will always crash and recover. It then runs for an unpredictable period, minutes or hours or nearly a day.  Using 'kwin_x11 --replace' followed by 'plasmashell --no-respawn' restores function but the next crash may be seconds or hours away. It doesn't matter whether the system is being actively used or just sitting there displaying a slideshow or idling. Probably the system has finally met the software too evolved for it to run; it is an interesting experiment and in fact is perfectly usable as a daily driver for business-type use.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault

[KCrash Handler]
#4  0x00007fe89e5c80fc in i915_drm_batchbuffer_validate_buffers () at /usr/lib64/dri/i915_dri.so
#5  0x00007fe89e5c2724 in i915_emit_hardware_state () at /usr/lib64/dri/i915_dri.so
#6  0x00007fe89e5bebde in setup_tri () at /usr/lib64/dri/i915_dri.so
#7  0x00007fe89e08fdbc in pipe_run_linear () at /usr/lib64/dri/i915_dri.so
#8  0x00007fe89e090d93 in draw_pipeline_run_linear () at /usr/lib64/dri/i915_dri.so
#9  0x00007fe89e108527 in llvm_pipeline_generic.constprop.0.isra () at /usr/lib64/dri/i915_dri.so
#10 0x00007fe89e108899 in llvm_middle_end_linear_run () at /usr/lib64/dri/i915_dri.so
#11 0x00007fe89e09eb62 in vsplit_run_linear () at /usr/lib64/dri/i915_dri.so
#12 0x00007fe89e097922 in draw_pt_arrays.isra () at /usr/lib64/dri/i915_dri.so
#13 0x00007fe89e097cf0 in draw_instances () at /usr/lib64/dri/i915_dri.so
#14 0x00007fe89e0981ad in draw_vbo () at /usr/lib64/dri/i915_dri.so
#15 0x00007fe89e5b8926 in i915_draw_vbo () at /usr/lib64/dri/i915_dri.so
#16 0x00007fe89dd64289 in _mesa_draw_arrays.part.0 () at /usr/lib64/dri/i915_dri.so
#17 0x00007fe8bacae697 in KWin::ItemRendererOpenGL::renderItem(KWin::Item*, int, QRegion const&, KWin::WindowPaintData const&) () at /lib64/libkwin.so.5
#18 0x00007fe8bacb2fb7 in KWin::WorkspaceScene::finalPaintWindow(KWin::EffectWindowImpl*, int, QRegion const&, KWin::WindowPaintData&) () at /lib64/libkwin.so.5
#19 0x00007fe8bac3488b in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () at /lib64/libkwin.so.5
#20 0x00007fe8bacb7b81 in KWin::WorkspaceScene::paintWindow(KWin::WindowItem*, int, QRegion const&) () at /lib64/libkwin.so.5
#21 0x00007fe8bacb7e5e in KWin::WorkspaceScene::paintSimpleScreen(int, QRegion const&) () at /lib64/libkwin.so.5
#22 0x00007fe8bac347d9 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () at /lib64/libkwin.so.5
#23 0x00007fe8bacb7a9a in KWin::WorkspaceScene::paint(KWin::RenderTarget*, QRegion const&) () at /lib64/libkwin.so.5
#24 0x00007fe8baca9751 in KWin::SceneDelegate::paint(KWin::RenderTarget*, QRegion const&) () at /lib64/libkwin.so.5
#25 0x00007fe8babf28b8 in KWin::Compositor::paintPass(KWin::RenderLayer*, KWin::RenderTarget*, QRegion const&) () at /lib64/libkwin.so.5
#26 0x00007fe8babf73c3 in KWin::Compositor::composite(KWin::RenderLoop*) () at /lib64/libkwin.so.5
#27 0x00007fe8babf772d in KWin::X11Compositor::composite(KWin::RenderLoop*) () at /lib64/libkwin.so.5
#28 0x00007fe8b92e9151 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5
#29 0x00007fe8baba6c24 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*) () at /lib64/libkwin.so.5
#30 0x00007fe8babfd48f in KWin::RenderLoopPrivate::dispatch() () at /lib64/libkwin.so.5
#31 0x00007fe8b92e9151 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5
#32 0x00007fe8b92ec6cd in QTimer::timeout(QTimer::QPrivateSignal) () at /lib64/libQt5Core.so.5
#33 0x00007fe8b92df97b in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#34 0x00007fe8b87aeb95 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#35 0x00007fe8b92b4e78 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#36 0x00007fe8b930670b in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#37 0x00007fe8b9307009 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#38 0x00007fe8b6b11e5c in g_main_context_dispatch_unlocked.lto_priv () at /lib64/libglib-2.0.so.0
#39 0x00007fe8b6b6cf18 in g_main_context_iterate_unlocked.isra () at /lib64/libglib-2.0.so.0
#40 0x00007fe8b6b0fad3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#41 0x00007fe8b93073b9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#42 0x00007fe8b92b383b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#43 0x00007fe8b92bbacb in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#44 0x000055b78cce6c01 in main ()
[Inferior 1 (process 5766) detached]

Reported using DrKonqi