reproduce using our linux-mm random bug collection on NUMA systems. >> >> OK, I must have missed that this was on ppc. The order makes more sense >> now. I will have a look at this next week. > > OK, so I've had a look and I know what's going on there. The > move_pages12 is migrating hugetlb pages. Those are not charged to any > memcg. We have completely missed this case. There are two ways going > around that. Drop the warning and update the comment so that we do not > forget about that or special case hugetlb pages. > > I think the first option is better. > Hi Michal, Compare to ignore the warning which is designed to give, seems addressing the hugetlb out of charge issue is a better solution, otherwise the memcg memory usage is out of control on hugetlb, is that right? Thanks Alex