Netbooting image results in EFI stub: ERROR: Failed to alloc highmem for files

[CMCDragonkai]

Describe the bug

I've built a custom netbootable image, and the resulting initrd is 923 MiB.

Booting this succeeds, however I see these 2 messages during early stage 1:

EFI stub: ERROR: Failed to alloc highmem for files
Trying to load files to higher address

The boot continues and gets into the userspace.

To Reproduce

Can't really show how to build our custom image. However you could try building your own netboot image and add in alot of things to increase the size of the image.

The nixpkgs revision was: f6dac8083874408fe287525007d3da9decd9bf44

{
  pkgs ? import <nixpkgs> {}
}:
  with pkgs;
  let
    configuration = import ./nixos/configuration.nix;
    system = nixos [
      configuration
    ];
  in
    symlinkJoin {
      name = "custom-netboot";
      paths = [
        system.netbootRamdisk
        system.kernel
        system.netbootIpxeScript
      ];
    }

Expected behavior

I expected this not to occur. And I never saw it occur when running it virtualized in QEMU/KVM, only on real hardware.

Screenshots

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