On Thu, Apr 4, 2013 at 7:16 AM, Vivek Goyal <vgo...@redhat.com> wrote:
>> +     crashkernel_high=size[KMG]
>> +                     [KNL, x86_64] range could be above 4G. Allow kernel
>> +                     to allocate physical memory region from top, so could
>> +                     be above 4G if system have more than 4G ram installed.
>
> Also specify "otherwise memory will be allocated below 4G, if available".
>
...
>> @@ -614,6 +619,8 @@ bytes respectively. Such letter suffixes
>>                       0: to disable low allocation on systems that do not
>>                       need swiotlb, that will save 72M low ram in first
>>                       kernel.
>> +                     It will be ignored when crashkernel_high=X is not used
>> +                     or return from that is below 4G.
>
> Replace "return from that" with "memory reserved".

updated.

Thanks

Yinghai
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