Re: Bug in reclaim logic with exhausted nodes?

On 25.03.2014 [11:17:57 -0500], Christoph Lameter wrote:

On Mon, 24 Mar 2014, Nishanth Aravamudan wrote:

quoted

Anyone have any ideas here?

Dont do that? Check on boot to not allow exhausting a node with huge
pages?

Gigantic hugepages are allocated by the hypervisor (not the Linux VM),
and we don't control where the allocation occurs. Yes, ideally, they
would be interleaved to avoid this situation, but I can also see reasons
for having them all be from one node so that tasks can be affinitized
and get the guarantee of the 16GB pagesize benefit.

Thanks,
Nish