Re: [PATCH 2/2] x86, e820 disable ACPI Memory Hotplug if memorymapping is specified by user [v2]

[7eggert]

On Fri, 10 Jan 2014, Prarit Bhargava wrote:

> kdump uses memmap=exactmap and mem=X values to configure the memory
> mapping for the kdump kernel.  If memory is hotadded during the boot of
> the kdump kernel it is possible that the page tables for the new memory
> cause the kdump kernel to run out of memory.
> 
> Since the user has specified a specific mapping ACPI Memory Hotplug should be
> disabled in this case.

I'll ask just in case: Is it possible to want memory hotplug in spite of 
using memmap=exactmap or mem=X?
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