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

[H. Peter Anvin]

Various DMA-deficient devices, at least without an iommu.

Vivek Goyal <vgoyal@xxxxxxxxxx> wrote:
>On Thu, Nov 21, 2013 at 05:31:54PM -0800, H. Peter Anvin wrote:
>> On 11/21/2013 05:29 PM, Yinghai Lu wrote:
>> > On Thu, Nov 21, 2013 at 5:25 PM,  <jerry.hoemann@xxxxxx> wrote:
>> >> On Thu, Nov 21, 2013 at 05:12:57PM -0800, H. Peter Anvin wrote:
>> >>
>> >> Large systems w/ lots of IO require large crash kernel allocations
>for
>> >> the kernel to boot.  Then you have to worry about the OOM
>killer.....
>> > 
>> > so go with crashkernel=1024M,high.
>> > 
>> 
>> Yes, there is no bloody excuse to hog that much low memory.
>
>Curious, why is low memory precious on x86_64? Who is going to use it?
>
>Thanks
>Vivek

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