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huge page corner cases???

Hey all,

Sorry if its a second time I am posting this topic. I posted it
earlier but couldn't find it in the archive..hence a second post

I read about the huge page corner cases i.e problems may occur on
using hueg pages in Linux , the linux of the page is:
http://linux-mm.org/HugePageCornerCases

The first corner case is given as

-NUMA-aware allocation -- don't want all the memory accesses going
through a common controller.

Can anyone please specify what the statement means as I didn't clearly
get its meaning?

what do they mean by -- "don't want all the memory accesses going
through a common controller."

And what can be a possible solution for it?

-Adheer

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