https://bugs.kde.org/show_bug.cgi?id=458234
Bug ID: 458234
Summary: Kwin crashes while using task switcher
Product: kwin
Version: 5.25.4
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: emaster...@gmail.com
Target Milestone: ---
SUMMARY
If I have at least three windows and I use task switcher by the shortcut
Alt+Tab then Kwin crashes. It crashes several times if I continue to use that
shortcut.
STEPS TO REPRODUCE
1. open at least three windows
2. use task switcher (i.e. Alt+Tab)
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 35
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.2
Kernel Version: 5.18.18-100.fc35.x86_64 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-1065G7 CPU @ 1.30GHz
Memory: 7.4 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Plus Graphics
Manufacturer: Dell Inc.
Product Name: Inspiron 15 5501
ADDITIONAL INFORMATION:
Application: KWin (kwin_x11), signal: Aborted
[KCrash Handler]
#4 0x00007fb40d18556c in __pthread_kill_implementation () at /lib64/libc.so.6
#5 0x00007fb40d138d16 in raise () at /lib64/libc.so.6
#6 0x00007fb40d10c7f3 in abort () at /lib64/libc.so.6
#7 0x00007fb3f88fd712 in blorp_update_clear_color.part[cold] () at
/usr/lib64/dri/iris_dri.so
#8 0x00007fb3f954dce9 in iris_fence_flush () at /usr/lib64/dri/iris_dri.so
#9 0x00007fb3f8ae2479 in fence_sync () at /usr/lib64/dri/iris_dri.so
#10 0x00007fb40f54f833 in KWin::WindowThumbnailItem::updateOffscreenTexture()
() at /lib64/libkwin.so.5
#11 0x00007fb40e58d7d9 in void doActivate<false>(QObject*, int, void**) () at
/lib64/libQt5Core.so.5
#12 0x00007fb40f52f784 in KWin::Scene::prePaint(KWin::Output*) () at
/lib64/libkwin.so.5
#13 0x00007fb40f482c63 in KWin::Compositor::prePaintPass(KWin::RenderLayer*) ()
at /lib64/libkwin.so.5
#14 0x00007fb40f484fa5 in KWin::Compositor::composite(KWin::RenderLoop*) () at
/lib64/libkwin.so.5
#15 0x00007fb40f485a45 in KWin::X11Compositor::composite(KWin::RenderLoop*) ()
at /lib64/libkwin.so.5
#16 0x00007fb40e58d7d9 in void doActivate<false>(QObject*, int, void**) () at
/lib64/libQt5Core.so.5
#17 0x00007fb40f449f46 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*)
() at /lib64/libkwin.so.5
#18 0x00007fb40f51cae7 in KWin::RenderLoopPrivate::dispatch() () at
/lib64/libkwin.so.5
#19 0x00007fb40e58d7d9 in void doActivate<false>(QObject*, int, void**) () at
/lib64/libQt5Core.so.5
#20 0x00007fb40e590a7e in QTimer::timeout(QTimer::QPrivateSignal) () at
/lib64/libQt5Core.so.5
#21 0x00007fb40e5842cf in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#22 0x00007fb40d8e0443 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#23 0x00007fb40e559be8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#24 0x00007fb40e5aa283 in QTimerInfoList::activateTimers() () at
/lib64/libQt5Core.so.5
#25 0x00007fb40e5a8850 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#26 0x00007fb3fafe94e2 in
QXcbUnixEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /lib64/libQt5XcbQpa.so.5
#27 0x00007fb40e5585f2 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#28 0x00007fb40e560b34 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#29 0x0000561872c98398 in main ()
[Inferior 1 (process 11852) detached]
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