https://bugs.kde.org/show_bug.cgi?id=489878
Bug ID: 489878
Summary: 100% CPU and system hang on login
Classification: Plasma
Product: kwin
Version: 6.1.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: ase1...@hotmail.com
Target Milestone: ---
SOFTWARE/OS VERSIONS
OS: Arch Linux
Kernel: 6.6.37
KDE Plasma Version: 6.1.2
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2
GPU: AMD Radeon RX 7900 XTX
SUMMARY:
On login, kwin_wayland will max out the system's CPU by having multiple
instances running, all at 100%, causing the system's desktop to entirely freeze
up.
This began occuring on mesa 1.24.1.2-1 on arch, however mesa 1.24.1.1-1 was
working fine and not triggering this issue.
I will have multiple instances of the following process, all using 100% CPU:
`/usr/bin/kwin_wayland --wayland-fd 7 --socket wayland-@ --xwayland-fd 8
--xwayland-fd 9 --xwayland-display :1 --xwayland-xauthority
/run/user/10@@/xauth_pzjRIB --xwayland`
If I ssh in and kill *one* of the kwin_wayland processes, it will cause it to
kill the others and restart kwin normally, making the system usable again.
logs from `journalctl --user -u plasma-kwin_wayland.service -b`:
```
Jul 07 08:55:45 thegatekeeper systemd[1349]: Starting KDE Window Manager...
Jul 07 08:55:45 thegatekeeper systemd[1349]: Started KDE Window Manager.
Jul 07 08:55:45 thegatekeeper kwin_wayland[1401]: No backend specified,
automatically choosing drm
Jul 07 08:55:45 thegatekeeper kwin_wayland_wrapper[1401]:
_amdgpu_device_initialize: amdgpu_query_info(ACCEL_WORKING) failed (-13)
Jul 07 08:55:45 thegatekeeper kwin_wayland_wrapper[1401]: amdgpu:
amdgpu_device_initialize failed.
Jul 07 08:55:58 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:55:59 thegatekeeper kwin_wayland_wrapper[1651]: The XKEYBOARD keymap
compiler (xkbcomp) reports:
Jul 07 08:55:59 thegatekeeper kwin_wayland_wrapper[1651]: > Warning:
Unsupported maximum keycode 708, clipping.
Jul 07 08:55:59 thegatekeeper kwin_wayland_wrapper[1651]: >
X11 cannot support keycodes above 255.
Jul 07 08:55:59 thegatekeeper kwin_wayland_wrapper[1651]: > Warning:
Could not resolve keysym XF86KbdInputAssistPrevgrou
Jul 07 08:55:59 thegatekeeper kwin_wayland_wrapper[1651]: > Warning:
Could not resolve keysym XF86KbdInputAssistNextgrou
Jul 07 08:55:59 thegatekeeper kwin_wayland_wrapper[1651]: Errors from xkbcomp
are not fatal to the X server
Jul 07 08:56:09 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:56:10 thegatekeeper kcminit[1632]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
Jul 07 08:56:10 thegatekeeper kcminit[1632]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_style.so"
Jul 07 08:56:52 thegatekeeper kwin_wayland_wrapper[1557]: [dix] couldn't enable
device 10
Jul 07 08:56:52 thegatekeeper kwin_wayland_wrapper[1557]: [dix] couldn't enable
device 11
Jul 07 08:56:52 thegatekeeper kwin_wayland_wrapper[1557]: [dix] couldn't enable
device 12
Jul 07 08:57:06 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:57:31 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:57:40 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:57:48 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:57:57 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:58:05 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:58:14 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:58:22 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:58:31 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:58:39 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:58:48 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:58:56 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:59:05 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:59:13 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:59:21 thegatekeeper kwin_wayland[1401]: kwin_wayland_drm: Pageflip
timed out! This is a kernel bug
Jul 07 08:59:25 thegatekeeper kwin_wayland[2399]: No backend specified,
automatically choosing drm
Jul 07 08:59:25 thegatekeeper kwin_wayland_wrapper[2574]: The XKEYBOARD keymap
compiler (xkbcomp) reports:
Jul 07 08:59:25 thegatekeeper kwin_wayland_wrapper[2574]: > Warning:
Unsupported maximum keycode 708, clipping.
Jul 07 08:59:25 thegatekeeper kwin_wayland_wrapper[2574]: >
X11 cannot support keycodes above 255.
Jul 07 08:59:25 thegatekeeper kwin_wayland_wrapper[2574]: > Warning:
Could not resolve keysym XF86KbdInputAssistPrevgrou
Jul 07 08:59:25 thegatekeeper kwin_wayland_wrapper[2574]: > Warning:
Could not resolve keysym XF86KbdInputAssistNextgrou
Jul 07 08:59:25 thegatekeeper kwin_wayland_wrapper[2574]: Errors from xkbcomp
are not fatal to the X server
Jul 07 08:59:25 thegatekeeper kcminit[2589]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
Jul 07 08:59:25 thegatekeeper kcminit[2589]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_style.so"
Jul 07 09:00:31 thegatekeeper kwin_wayland[2399]: kf.windowsystem: static bool
KX11Extras::mapViewport() may only be used on X11
Jul 07 09:00:31 thegatekeeper kwin_wayland[2399]: kwin_scene_opengl: 0x2:
GL_INVALID_VALUE in glTexStorage2D(width, height or depth < 1)
Jul 07 09:00:31 thegatekeeper kwin_wayland[2399]: kwin_scene_opengl: Invalid
framebuffer status: "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
Jul 07 09:00:31 thegatekeeper kwin_wayland[2399]: kwin_scene_opengl: 0x2:
GL_INVALID_OPERATION in glBindFramebuffer(non-gen name)
Jul 07 09:00:31 thegatekeeper kwin_wayland[2399]: kwin_scene_opengl: 0x2:
GL_INVALID_FRAMEBUFFER_OPERATION in glClear(incomplete framebuffer)
```
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