Messages in this thread | | | Date | Mon, 13 Jan 2014 16:53:49 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 2/2] x86, e820 disable ACPI Memory Hotplug if memory mapping is specified by user [v2] |
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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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