Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on boot

From: Yinghai Lu
Date: Mon Oct 22 2012 - 17:06:44 EST


On Mon, Oct 22, 2012 at 2:00 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> On 10/22/2012 01:50 PM, Yinghai Lu wrote:
>>>
>>> We should not map a partial page at the end of RAM; it is functionally
>>> lost.
>>
>> Now we did not, we have max_low_pfn, and max_pfn to cap out end partial page.
>>
>
> Well, it is not just end of RAM, which is where the entire current
> implementation falls apart, obviously.
>

ok, I will fix that from memblock_x86_fill().

after we put the E820_RAM and E820_RESERVED_KERN in to memblock, do
one trim in memblock.memory.

Thanks

Yinghai Lu
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