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SubjectRe: [PATCH 2/2] x86, e820 disable ACPI Memory Hotplug if memory mapping is specified by user [v2]
On 01/13/2014 04:33 PM, Toshi Kani wrote:
>
> I do not think it makes sense. You needed memmap=exactmap as a
> workaround because the kernel did not boot with the firmware's memory
> info. So, it's broken, and you requested the kernel to ignore the
> firmware info.
>
> Why do you think memory hotplug needs to be supported under such
> condition, which has to use the broken firmware info?
>

Even more than memory hotplug: what do we do with NUMA? Since we have
already told the kernel "the firmware is bogus" it would seem that any
NUMA optimizations would be a bit ... cantankerous at best, no?

-hpa




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