Application: kwin_x11 (5.26.4)
 (Compiled from sources)
Qt Version: 5.15.7
Frameworks Version: 5.101.0
Operating System: Linux 6.0.7-gentoo x86_64
Windowing System: X11
Distribution: "Gentoo Linux"
DrKonqi: 5.26.4 [KCrashBackend]

-- Information about the crash:
kwin crashed when deleting qemu disks after selecting the vm to delete from (Virt-Manager). The window flickered then black screened, then kwin restarted itself.

The reporter is unsure if this crash is reproducible.

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

[KCrash Handler]
#4  0x000055fcac25dbd9 in ?? ()
#5  0x000055fcac25e3ab in ?? ()
#6  0x00007fa0ddeb55c6 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /usr/lib64/libkwin.so.5
#7  0x00007fa0dbe6383c in KWin::AnimationEffect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib64/libkwineffects.so.14
#8  0x00007fa0ddeb55c6 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /usr/lib64/libkwin.so.5
#9  0x00007fa0dbe6383c in KWin::AnimationEffect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib64/libkwineffects.so.14
#10 0x00007fa0ddeb55c6 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /usr/lib64/libkwin.so.5
#11 0x00007fa0ddf3a285 in KWin::Scene::paintWindow(KWin::WindowItem*, int, QRegion const&) () from /usr/lib64/libkwin.so.5
#12 0x00007fa0ddf3a557 in KWin::Scene::paintSimpleScreen(int, QRegion const&) () from /usr/lib64/libkwin.so.5
#13 0x00007fa0ddeb5487 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /usr/lib64/libkwin.so.5
#14 0x00007fa0ddeb5487 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /usr/lib64/libkwin.so.5
#15 0x00007fa0ddeb5487 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /usr/lib64/libkwin.so.5
#16 0x00007fa0ddeb5487 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /usr/lib64/libkwin.so.5
#17 0x00007fa0ddeb5487 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /usr/lib64/libkwin.so.5
#18 0x00007fa0ddf39046 in KWin::Scene::paintScreen(QRegion const&) () from /usr/lib64/libkwin.so.5
#19 0x00007fa0de08c465 in KWin::SceneOpenGL::paint(KWin::RenderTarget*, QRegion const&) () from /usr/lib64/libkwin.so.5
#20 0x00007fa0ddf385fe in ?? () from /usr/lib64/libkwin.so.5
#21 0x00007fa0dde6fd74 in KWin::Compositor::paintPass(KWin::RenderLayer*, KWin::RenderTarget*, QRegion const&) () from /usr/lib64/libkwin.so.5
#22 0x00007fa0dde73565 in KWin::Compositor::composite(KWin::RenderLoop*) () from /usr/lib64/libkwin.so.5
#23 0x00007fa0dde73873 in KWin::X11Compositor::composite(KWin::RenderLoop*) () from /usr/lib64/libkwin.so.5
#24 0x00007fa0dc9a9016 in ?? () from /usr/lib64/libQt5Core.so.5
#25 0x00007fa0dde2a842 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*) () from /usr/lib64/libkwin.so.5
#26 0x00007fa0dde7bef3 in KWin::RenderLoopPrivate::dispatch() () from /usr/lib64/libkwin.so.5
#27 0x00007fa0dc9a9016 in ?? () from /usr/lib64/libQt5Core.so.5
#28 0x00007fa0dc9ad20a in QTimer::timeout(QTimer::QPrivateSignal) () from /usr/lib64/libQt5Core.so.5
#29 0x00007fa0dc9a0d0f in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#30 0x00007fa0dbffa9ff in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#31 0x00007fa0dc9751e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#32 0x00007fa0dc9c6c9b in QTimerInfoList::activateTimers() () from /usr/lib64/libQt5Core.so.5
#33 0x00007fa0dc9c75a1 in ?? () from /usr/lib64/libQt5Core.so.5
#34 0x00007fa0da1531ab in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#35 0x00007fa0da153468 in ?? () from /usr/lib64/libglib-2.0.so.0
#36 0x00007fa0da15351f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#37 0x00007fa0dc9c7974 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#38 0x00007fa0dc973bcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#39 0x00007fa0dc97c22d in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#40 0x000055fcac2290e1 in ?? ()
#41 0x00007fa0db42134c in ?? () from /lib64/libc.so.6
#42 0x00007fa0db4213fc in __libc_start_main () from /lib64/libc.so.6
#43 0x000055fcac22a501 in ?? ()
[Inferior 1 (process 3379) detached]

Reported using DrKonqi