Re: [REGRESSION] Kernel booted via kexec fails to resume from hibernation

[Roberto Ricci]

On 2025-04-01 19:59 +0700, msizanoen wrote:
> [snip]
> It seems like `e820__register_nosave_regions` is erroneously marking some
> kernel memory as nosave in the presence of sub-page e820 regions. In theory
> backporting
> https://lore.kernel.org/all/20250214090651.3331663-1-rppt@xxxxxxxxxx/ should
> be sufficient to avoid this but a fix for the actual root cause is
> preferred.

When using kexec_file_load, this patch series fixes the issue not only
in theory but also in practice.
But the issue with kexec_load (see
https://lore.kernel.org/all/Z-hYWc9LtBU1Yhtg@desktop0a/
), which might be related, is not fixed.