On 01/22/2013 07:20 AM, Thomas Renninger wrote:
> From: Yinghai Lu <[email protected]>
>
> memmap=exactmap will throw away all original, but also until then
> user defined (through other provided memmap= parameters) areas.
> That means all memmap= boot parameters passed before a memmap=exactmap
> parameter are not recognized.
> Without this fix:
> memmap=x@y memmap=exactmap memmap=i#k
> only i#k would get recognized.
>
> This is wrong, this fix will only throw away all original e820 areas once
> when memmap=exactmap is found in the whole boot command line and before
> any other memmap= option is parsed.
>
I don't understand why this is wrong. The kernel command line is always
parsed from left to right, and I don't see anything inherently
problematic with that with something like a big hammer like exactmap.
-hpa
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