[PATCH v2] powerpc: Add reloc_offset() to font bitmap pointer used for bootx_printf()

[Cedar Maxwell]

Maddy (and everyone else),


Thank you all for your hard work in solving this issue!


Cedar Maxwell

On 12/26/25 10:23 PM, Madhavan Srinivasan wrote:
> On Mon, 10 Nov 2025 10:30:22 +1100, Finn Thain wrote:
>> Since Linux v6.7, booting using BootX on an Old World PowerMac produces
>> an early crash. Stan Johnson writes, "the symptoms are that the screen
>> goes blank and the backlight stays on, and the system freezes (Linux
>> doesn't boot)."
>>
>> Further testing revealed that the failure can be avoided by disabling
>> CONFIG_BOOTX_TEXT. Bisection revealed that the regression was caused by
>> a change to the font bitmap pointer that's used when btext_init() begins
>> painting characters on the display, early in the boot process.
>>
>> [...]
> Applied to powerpc/fixes.
>
> [1/1] powerpc: Add reloc_offset() to font bitmap pointer used for bootx_printf()
>        https://git.kernel.org/powerpc/c/b94b73567561642323617155bf4ee24ef0d258fe
>
> cheers