https://bugs.kde.org/show_bug.cgi?id=471447
--- Comment #2 from TYY331 <sebastian.p...@gmail.com> ---
(In reply to David Edmundson from comment #1)
I can confirm it's kwin_wayland that crashes
> That sounds more like kwin crashed and restarted. Please check for crashlogs
> of kwin (coredumpctl gbd kwin_wayland) and upload a trace.
Message: Process 14039 (kwin_wayland) of user 1000 dumped core.
Stack trace of thread 14039:
#0 0x00007fb71aa18954 _ZNK7QRegion7isEmptyEv (libQt5Gui.so.5 +
0x418954)
#1 0x00007fb71aa18ade _ZNK7QRegion12boundingRectEv
(libQt5Gui.so.5 + 0x418ade)
#2 0x00007fb70402718b
_ZN4KWin20LightlyShadersEffect14prePaintWindowEPNS_12EffectWindowERNS_18WindowPrePaintDataENSt6chrono8durationIlSt5ratioILl1ELl1000EEEE
(kwin4_effect_lightlyshaders.so + 0xb18b)
#3 0x00007fb71bbfaebe
_ZN4KWin18EffectsHandlerImpl14prePaintWindowEPNS_12EffectWindowERNS_18WindowPrePaintDataENSt6chrono8durationIlSt5ratioILl1ELl1000EEEE
(libkwin.so.5 + 0x1faebe)
#4 0x000055b58bceb0e6 n/a (kwin_wayland + 0xa50e6)
#5 0x00007fb71bbfaebe
_ZN4KWin18EffectsHandlerImpl14prePaintWindowEPNS_12EffectWindowERNS_18WindowPrePaintDataENSt6chrono8durationIlSt5ratioILl1ELl1000EEEE
(libkwin.so.5 + 0x1faebe)
#6 0x000055b58bd070e9 n/a (kwin_wayland + 0xc10e9)
#7 0x00007fb71bbfaebe
_ZN4KWin18EffectsHandlerImpl14prePaintWindowEPNS_12EffectWindowERNS_18WindowPrePaintDataENSt6chrono8durationIlSt5ratioILl1ELl1000EEEE
(libkwin.so.5 + 0x1faebe)
#8 0x00007fb71bc81a53
_ZN4KWin14WorkspaceScene24preparePaintSimpleScreenEv (libkwin.so.5 + 0x281a53)
#9 0x00007fb71bc8460e
_ZN4KWin14WorkspaceScene8prePaintEPNS_13SceneDelegateE (libkwin.so.5 +
0x28460e)
#10 0x00007fb71bbbd844
_ZN4KWin10Compositor12prePaintPassEPNS_11RenderLayerE (libkwin.so.5 + 0x1bd844)
#11 0x00007fb71bbc1ea0
_ZN4KWin10Compositor9compositeEPNS_10RenderLoopE (libkwin.so.5 + 0x1c1ea0)
#12 0x00007fb71a2d06a7 n/a (libQt5Core.so.5 + 0x2d06a7)
#13 0x00007fb71bb716f7
_ZN4KWin10RenderLoop14frameRequestedEPS0_ (libkwin.so.5 + 0x1716f7)
#14 0x00007fb71bbc85a8 _ZN4KWin17RenderLoopPrivate8dispatchEv
(libkwin.so.5 + 0x1c85a8)
#15 0x00007fb71a2d06a7 n/a (libQt5Core.so.5 + 0x2d06a7)
#16 0x00007fb71a2d21df _ZN6QTimer7timeoutENS_14QPrivateSignalE
(libQt5Core.so.5 + 0x2d21df)
#17 0x00007fb71a2c315e _ZN7QObject5eventEP6QEvent
(libQt5Core.so.5 + 0x2c315e)
#18 0x00007fb71997893f
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x17893f)
#19 0x00007fb71a29b778
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x29b778)
#20 0x00007fb71a2e9e2b _ZN14QTimerInfoList14activateTimersEv
(libQt5Core.so.5 + 0x2e9e2b)
#21 0x00007fb71a2ea301
_ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x2ea301)
#22 0x000055b58bd7a502 n/a (kwin_wayland + 0x134502)
#23 0x00007fb71a29a484
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x29a484)
#24 0x00007fb71a29b923 _ZN16QCoreApplication4execEv
(libQt5Core.so.5 + 0x29b923)
#25 0x000055b58bc962fb n/a (kwin_wayland + 0x502fb)
#26 0x00007fb719239850 n/a (libc.so.6 + 0x23850)
#27 0x00007fb71923990a __libc_start_main (libc.so.6 + 0x2390a)
#28 0x000055b58bc97ed5 n/a (kwin_wayland + 0x51ed5)
Stack trace of thread 14064:
#0 0x00007fb719299f0e n/a (libc.so.6 + 0x83f0e)
#1 0x00007fb71929c7a0 pthread_cond_wait (libc.so.6 + 0x867a0)
#2 0x00007fb7112c7a4c n/a (radeonsi_dri.so + 0xc7a4c)
#3 0x00007fb71131495c n/a (radeonsi_dri.so + 0x11495c)
#4 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#5 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14065:
#0 0x00007fb719299f0e n/a (libc.so.6 + 0x83f0e)
#1 0x00007fb71929c7a0 pthread_cond_wait (libc.so.6 + 0x867a0)
#2 0x00007fb7112c7a4c n/a (radeonsi_dri.so + 0xc7a4c)
#3 0x00007fb71131495c n/a (radeonsi_dri.so + 0x11495c)
#4 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#5 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14069:
#0 0x00007fb719299f0e n/a (libc.so.6 + 0x83f0e)
#1 0x00007fb71929c7a0 pthread_cond_wait (libc.so.6 + 0x867a0)
#2 0x00007fb7112c7a4c n/a (radeonsi_dri.so + 0xc7a4c)
#3 0x00007fb71131495c n/a (radeonsi_dri.so + 0x11495c)
#4 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#5 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14066:
#0 0x00007fb719299f0e n/a (libc.so.6 + 0x83f0e)
#1 0x00007fb71929c7a0 pthread_cond_wait (libc.so.6 + 0x867a0)
#2 0x00007fb7112c7a4c n/a (radeonsi_dri.so + 0xc7a4c)
#3 0x00007fb71131495c n/a (radeonsi_dri.so + 0x11495c)
#4 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#5 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14046:
#0 0x00007fb719313c0f __poll (libc.so.6 + 0xfdc0f)
#1 0x00007fb717f6da9f n/a (libglib-2.0.so.0 + 0xb7a9f)
#2 0x00007fb717f0e032 g_main_context_iteration
(libglib-2.0.so.0 + 0x58032)
#3 0x00007fb71a2ea5cc
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x2ea5cc)
#4 0x00007fb71a29a484
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x29a484)
#5 0x00007fb71a0f72b6 _ZN7QThread4execEv (libQt5Core.so.5 +
0xf72b6)
#6 0x00007fb71c151a9a n/a (libQt5DBus.so.5 + 0x18a9a)
#7 0x00007fb71a0f34da n/a (libQt5Core.so.5 + 0xf34da)
#8 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#9 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14072:
#0 0x00007fb719313c0f __poll (libc.so.6 + 0xfdc0f)
#1 0x00007fb717f6da9f n/a (libglib-2.0.so.0 + 0xb7a9f)
#2 0x00007fb717f0e032 g_main_context_iteration
(libglib-2.0.so.0 + 0x58032)
#3 0x00007fb71a2ea5cc
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x2ea5cc)
#4 0x00007fb71a29a484
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x29a484)
#5 0x00007fb71a0f72b6 _ZN7QThread4execEv (libQt5Core.so.5 +
0xf72b6)
#6 0x00007fb71b0c2ab0 n/a (libQt5Qml.so.5 + 0x2c2ab0)
#7 0x00007fb71a0f34da n/a (libQt5Core.so.5 + 0xf34da)
#8 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#9 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14067:
#0 0x00007fb719299f0e n/a (libc.so.6 + 0x83f0e)
#1 0x00007fb71929c7a0 pthread_cond_wait (libc.so.6 + 0x867a0)
#2 0x00007fb7112c7a4c n/a (radeonsi_dri.so + 0xc7a4c)
#3 0x00007fb71131495c n/a (radeonsi_dri.so + 0x11495c)
#4 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#5 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14070:
#0 0x00007fb719299f0e n/a (libc.so.6 + 0x83f0e)
#1 0x00007fb71929c7a0 pthread_cond_wait (libc.so.6 + 0x867a0)
#2 0x00007fb7112c7a4c n/a (radeonsi_dri.so + 0xc7a4c)
#3 0x00007fb71131495c n/a (radeonsi_dri.so + 0x11495c)
#4 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#5 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
Stack trace of thread 14068:
#0 0x00007fb719313c0f __poll (libc.so.6 + 0xfdc0f)
#1 0x00007fb717f6da9f n/a (libglib-2.0.so.0 + 0xb7a9f)
#2 0x00007fb717f0e032 g_main_context_iteration
(libglib-2.0.so.0 + 0x58032)
#3 0x00007fb71a2ea5cc
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x2ea5cc)
#4 0x00007fb71a29a484
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x29a484)
#5 0x00007fb71a0f72b6 _ZN7QThread4execEv (libQt5Core.so.5 +
0xf72b6)
#6 0x00007fb71a0f34da n/a (libQt5Core.so.5 + 0xf34da)
#7 0x00007fb71929d44b n/a (libc.so.6 + 0x8744b)
#8 0x00007fb719320e40 n/a (libc.so.6 + 0x10ae40)
ELF object binary architecture: AMD x86-64
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