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SubjectRe: [PATCH 1/1] x86: Exclude E820_RESERVED regions and memory holes above 4 GB from direct mapping.
On 10/20/2011 03:26 PM, Jacob Shin wrote:
> On Thu, 2011-10-20 at 17:20 -0500, H. Peter Anvin wrote:
>> On 10/20/2011 02:15 PM, Jacob Shin wrote:
>>> On systems with very large memory (1 TB in our case), BIOS may report a
>>> reserved region or a hole in the E820 map, even above the 4 GB range. Exclude
>>> these from the direct mapping.
>>
>>> + if (ei->type == E820_RESERVED)
>>> + continue;
>>
>> This should probably be ei->type != E820_RAM or something similar. I
>> haven't looked yet, what does the < 4 GiB code do?
>
> Hm, okay, it calls e820_end_of_low_ram_pfn() which effectively is !=
> E820_RAM.
>
> I'll fix this, test, then resend.
>

I never got any kind of updated patch, did I?

-hpa



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