On Tue, 7 Jul 2020 16:02:04 +1200 Barry Song <song.bao.hua@xxxxxxxxxxxxx> wrote: > hugetlb_cma[0] can be NULL due to various reasons, for example, node0 has > no memory. so NULL hugetlb_cma[0] doesn't necessarily mean cma is not > enabled. gigantic pages might have been reserved on other nodes. I'm trying to figure out whether this should be backported into 5.7.1, but the changelog doesn't describe any known user-visible effects of the bug. Are there any?