On Thu, 21 Aug 2025 17:58:58 +0000 Evangelos Petrongonas <epet...@amazon.de> 
wrote:

> This patch series fixes a kernel panic that occurs when booting with
> both EFI and KHO (Kexec HandOver) enabled.
> 
> The issue arises because EFI's `reserve_regions()` clears all memory
> regions with `memblock_remove(0, PHYS_ADDR_MAX)` before rebuilding them
> from EFI data. This destroys KHO scratch regions that were set up early
> during device tree scanning, causing a panic as the kernel has no valid
> memory regions for early allocations.

Do you think we should backport this into 6.16.x kernels?  If so, is
there a suitable Fixes: target we can include?

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