Re: [PATCH v2 2/4] x86, kdump: Retore crashkernel= to allocate low

[Yinghai Lu]

On Thu, Apr 4, 2013 at 7:16 AM, Vivek Goyal <vgoyal@xxxxxxxxxx> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/