Re: [PATCH] x86: only load initrd above 4g on second try

From: Yinghai Lu
Date: Wed Aug 27 2014 - 13:13:28 EST


On Wed, Aug 27, 2014 at 3:59 AM, Matt Fleming <matt@xxxxxxxxxxxxxxxxx> wrote:
> On Tue, 26 Aug, at 02:45:44PM, Yinghai Lu wrote:
> The reason I suggested introducing some kind of kernel parameter to
> allow loading above 4G is because if Mantas loads a 5GB initrd with your
> patch, his machine is still going to hang, with no indication of why it
> hung.
>
> At least with a kernel paramter, by default we can try to load under 4G,
> and if that fails because the file is too big we can print something
> along the lines of,
>
> "initramfs file too large: try booting with efi=file-max"
>
> No, it's not ideal, but I think it's a worthwhile compromise because
> you're only going to run into this issue when loading a huge initramfs
> with the EFI boot stub.

I would like to avoid adding more kernel parameter.

How about adding more info print out like:
"Try to load initrd file to higher address..."

Thanks

Yinghai
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