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SubjectRe: [PATCH 1/2] acpi memory hotplug, add parameter to disable memory hotplug [v2]
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On Fri, 2014-01-10 at 14:04 -0500, Prarit Bhargava wrote:
:
> ---
> Documentation/kernel-parameters.txt | 3 +++
> drivers/acpi/acpi_memhotplug.c | 12 ++++++++++++
> 2 files changed, 15 insertions(+)
>
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> index b9e9bd8..41374f9 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -2117,6 +2117,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
>
> nomce [X86-32] Machine Check Exception
>
> + acpi_no_memhotplug [ACPI] Disable memory hotplug. Useful for kexec
> + and kdump kernels.
> +

Please move it to where other acpi_xxx are described.

For kdump kernel, this option will be used when memmap=exactmap is
deprecated. IOW, it is not useful yet. Not sure what you mean by kexec
kernel. Memory hotplug does not need to be disabled for kexec reboot.

Thanks,
-Toshi





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