Xorg doesn't start and some other issues with the RC1 of kernel 6.10

[Thorsten Leemhuis]

On 31.05.24 11:03, Michael Ellerman wrote:
> Michael Ellerman <mpe at ellerman.id.au> writes:
>> Christian Zigotzky <chzigotzky at xenosoft.de> writes:
>>> On 28.05.24 22:00, Christian Zigotzky wrote:
>>>> Hi All,
>>>>
>>>> Xorg doesn't start anymore since the RC1 of kernel 6.10. We tested it 
>>>> with the VirtIO GPU and with some Radeon cards.
>>>>
>>>> Another error message: Failed to start Setup Virtual Console.
>>>>
>>>> Maybe this is the issue: + CONFIG_ARCH_HAS_KERNEL_FPU_SUPPORT=y
>>>>
>>>> Tested with FSL P5040, FSL P5020, and PASEMI boards.
>>>>
>>>> Could you please test Xorg on your PowerPC machines?
>>>>
>>>> Thanks,
>>>> Christian
>>> I tested the RC1 in a virtual e5500 QEMU PowerPC machine with Bochs VGA 
>>> (-device VGA,vgamem_mb=256) and Xorg doesn't start either.
>>>
>>> Error message: xf86OpenConsole: KDSETMODE KD_GRAPHICS failed 
>>> Inappropriate ioctl for device.
>>
>> That is presumably because of this:
>>   https://lore.kernel.org/all/0da9785e-ba44-4718-9d08-4e96c1ba7ab2@kernel.org/
> 
> Attempting to regzbot this.
> 
> #regzbot introduced: 8c467f330059
> #regzbot monitor: https://lore.kernel.org/all/0da9785e-ba44-4718-9d08-4e96c1ba7ab2@kernel.org/

Thx, I already had an eye on this, but thought tracking would not be
needed, as Greg (now CCed) wanted to revert 8c467f3300591a ("VT: Use
macros to define ioctls") two days ago:
https://lore.kernel.org/all/2024052901-police-trash-e9f9@gregkh/

But that commit is not yet in -next afaics. :-/

/me meanwhile wonders if it would be wise to fix this before -rc2

Ciao, Thorsten