Re: [RFC v2 0/2] Early use of boot service memory

H. Peter Anvin
2013-11-22T01:13:39Z

On 11/21/2013 03:37 PM, Matthew Garrett wrote:
> On Thu, Nov 21, 2013 at 03:18:41PM -0800, H. Peter Anvin wrote:
>> On 11/21/2013 03:07 PM, Matthew Garrett wrote:
>>> This is a problem we have to solve, but I don't think this is the right
>>> way to solve it. Why do we not just reattempt to perform the allocation
>>> immediately after we've freed the boot services regions?
>>>
>>
>> Wouldn't the memory map already have gotten scrambled all to hell by then?
>
> If we couldn't map a 64MB region in low memory earlier then it's likely
> to have been because there was a 64MB or greater boot services region.
>

I thought the problem was that they wanted to map a fairly large chunk
for faster kdump and fragmentation was being a problem.

-hpa