[PATCH] x86 e820: only void usable memory areas in memmap=exactmap case

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On Fri, Jan 11, 2013 at 12:06 PM, H. Peter Anvin <hpa at zytor.com> wrote:
> On 01/11/2013 11:59 AM, Yinghai Lu wrote:
>> On Fri, Jan 11, 2013 at 10:24 AM, Thomas Renninger <trenn at suse.de> wrote:
>>>> We may need to keep exactmap intact.
>>> Why?
>>> Kexec/kdump should have been the only user?
>>> If older/current kexec calls still add ACPI maps via memmap=X#Y,
>>> they should already exist in the original e820 map and fall off or
>>> get glued to one region if (wrongly) overlapping via sanitize_map.
>>
>> No, kexec/kdump is not the only user for memmap=exactmap.
>>
>
> Who is using it then, since you seem to know?

http://forums.gentoo.org/viewtopic-t-487476-highlight-proliant.html

http://forums.fedoraforum.org/archive/index.php/t-225347.html



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