Switch meson edge to 6.13 kernel

[kernelzru]

Switch meson edge to 6.13 kernel
Hdmi patches from xdarklight github repo

[igorpecovnik]

Can you also try to switch CURRENT to 6.12.y, which is going to be LTS?

[SteeManMI]

iMHO, it would be best to first switch edge to 6.12 so that 6.12 gets some testing on it. Then move legacy to 6.6, current to 6.12 and edge to 6.13.
I don't think it is wise to move current to a version that wasn't first tested as an edge build first.

[igorpecovnik]

iMHO, it would be best to first switch edge to 6.12 so that 6.12 gets some testing on it. Then move legacy to 6.6, current to 6.12 and edge to 6.13

Yes, better.

[domin144]

Hello @kernelzru . I tried your version on MXQ clone, which also uses s805 soc.

To get any HDMI output, I had to apply the same I apply for 6.12 kernel (https://github.com/armbian/build/blob/main/patch/kernel/archive/meson-6.12/0067-meson8b-mxq-add-HDMI-support.patch)

I am getting Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read error, when trying to switch the resolution from 1920x1200 to 1920x1080.
When time will allow, I will look through the patches, but letting you know in case the error message rings any bells.
hdmi_6.13_fail.txt

[kernelzru]

Hello @kernelzru . I tried your version on MXQ clone, which also uses s805 soc.

To get any HDMI output, I had to apply the same I apply for 6.12 kernel (https://github.com/armbian/build/blob/main/patch/kernel/archive/meson-6.12/0067-meson8b-mxq-add-HDMI-support.patch)

I am getting Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read error, when trying to switch the resolution from 1920x1200 to 1920x1080. When time will allow, I will look through the patches, but letting you know in case the error message rings any bells. hdmi_6.13_fail.txt

Hello. I've taken patches from xdarklight repository. There is also dts for MXQ device. Can you try with it? Not shure, that it will help, but may be:)

https://github.com/xdarklight/linux/blob/meson-mx-integration-6.13-20250112/arch/arm/boot/dts/amlogic/meson8b-mxq.dts

[domin144]

The dts file you pointed me to, has exactly the same fixes as those already in armbian patches (except minor reordering), so it won't help.

I did some experiments. I can confirm that the issue is introduced with one of the xdarklight's patches. I looked through the patches to find something, that would resemble any of the functions in the crash callstack. I found two suspicious callbacks added and commented them out. Patches rebased on kernel v6.13.5, some patches copied over from 6.12 (not sure if still needed, but preferred to keep them for now) and the workaround are available on this branch: https://github.com/domin144/armbian-build/tree/meson_6.12_on_xdarklight_6.13_clean_up

With this workaround added, I no longer observed the crash. I did some tests and it worked really nicely. Even HDMI audio was working. Not yet sure, what got broken (the callbacks were there for some reason).

While this is definitely a workaround, not a solution, there is so much good staff in the xdarklight's patches, that I think it's worth giving it a try.

@xdarklight : no sure what would be the correct way to file an issue against the patches. Maybe you would like to take a look at the kernel crash above?