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SubjectRe: [PATCH] x86: only load initrd above 4g on second try
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On Tue, Aug 26, 2014 at 3:16 PM, Mantas Mikulėnas <grawity@gmail.com> wrote:
>
> In particular, I just realized yesterday that I don't know whether
> it's referring to physical or virtual addresses in the initrd load
> code -- and the laptop only has 4 GB of memory, so the kernel
> shouldn't be using larger physical addresses in the first place.
> (Virtual ones, on the other hand, /would/ mean a weird bug like
> described above.)

When you have 4G ram installed, the mmio could take [3G,4G).
ram range will be [0,3G), [4G, 5G).

Yinghai
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