Issue with the latest kernel 6.14.4-400 (iMac,M1,2021 - F42 KDE Plasma)

Hello all,

I upgraded to the latest kernel (6.14.4-400) this morning.
After the reboot, the system became very laggy.
A quick look at the top output in the terminal showed that kwin_wayland was constantly using a lot of CPU (almost 100% , with some peaks largely over 100%).

Booting with the previous kernel 6.14.2-401 solves this issue.

Thanks in advance, and please feel free to tell me if you need more details to investigate

That sounds like mesa was not upgraded. What does rpm -q mesa-dri-drivers report? It should report “mesa-dri-drivers-25.1.0~asahipre20250425-1.fc42.aarch64”.

There is one known issue due to the dropped libOSMesa which is required for asymptote (might be installed as texlive dependency). This one should be resolved during this day.

What does sudo dnf --assumeno upgrade reoport?

rpm -q mesa-dri-drivers reports :
mesa-dri-drivers-25.1.0~asahipre20250221-1.fc42.aarch64
(so it’s not the version you mentioned)

Yes, Asymptote is installed on my system as a texlive dependency.

sudo dnf --assumeno upgrade reports a lot of things : please see https://pastebin.com/7xi0NTqT , the very end being :
Paquets avec conflits ignorés :
mesa-dri-drivers aarch64 25.0.4-2.fc42 updates 106.9 MiB
mesa-filesystem aarch64 25.0.4-2.fc42 updates 3.6 KiB
mesa-dri-drivers aarch64 25.0.2-3.fc42 fedora 107.5 MiB
mesa-filesystem aarch64 25.0.2-3.fc42 fedora 3.6 KiB
mesa-dri-drivers aarch64 25.1.0~asahipre20250425-2.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 111.6 MiB
mesa-dri-drivers aarch64 25.1.0~asahipre20250425-3.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 111.6 MiB
mesa-filesystem aarch64 25.1.0~asahipre20250425-2.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 3.6 KiB
mesa-filesystem aarch64 25.1.0~asahipre20250425-3.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 3.6 KiB
Paquets avec dépendances défectueuses ignorés :
mesa-dri-drivers aarch64 25.0.4-2.fc42 updates 106.9 MiB
mesa-libGL aarch64 25.0.4-2.fc42 updates 596.1 KiB
asymptote aarch64 3.01-1.fc42 fedora 12.9 MiB
libglvnd-glx aarch64 1:1.7.0-7.fc42 fedora 1.0 MiB
mesa-dri-drivers aarch64 25.0.2-3.fc42 fedora 107.5 MiB
mesa-libGL aarch64 25.0.2-3.fc42 fedora 595.9 KiB
texlive-collection-binextra noarch 11:svn66381-76.fc42 fedora 0.0 B
texlive-scheme-full noarch 11:svn54074-76.fc42 fedora 0.0 B
mesa-dri-drivers aarch64 25.1.0~asahipre20250221-1.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 109.2 MiB
mesa-dri-drivers aarch64 25.1.0~asahipre20250425-2.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 111.6 MiB
mesa-libEGL aarch64 25.1.0~asahipre20250425-3.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 394.9 KiB
mesa-libGL aarch64 25.1.0~asahipre20250221-1.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 596.0 KiB
mesa-libGL aarch64 25.1.0~asahipre20250425-2.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 398.2 KiB
mesa-va-drivers aarch64 25.1.0~asahipre20250425-3.fc42 copr:copr.fedorainfracloud.org:group_asahi:mesa 148.0 B

Aucune tâche à effectuer.

What should I do then ?

There should be a fix in the next hour. dnf --refresh upgrade (or updates via Discover/GnomeSoftware after refreshing) should then upgrade mesa compatible with the new kernel.

fixed packages are in place now. All mesa package versions should be 25.1.0~asahipre20250425-4 except for mesa-libOSMesa which will still at 25.1.0~asahipre20250221-1.fc42

I’ve just done the upgrade of the mesa packages and rebooted with the latest kernel.

Everything is now fine, the issue is fixed.

Thank you very much for the quick support Janne ! It’s very appreciating and very appreciated.