On Thu, Jun 18, 2020 at 07:55:35AM -0700, Shakeel Butt wrote: > Not sure if my email went through, so, re-sending. No, I've got it, jut was busy with the other stuff. > > On Mon, Jun 8, 2020 at 4:07 PM Roman Gushchin <guro@xxxxxx> wrote: > > > > From: Johannes Weiner <hannes@xxxxxxxxxxx> > > > [...] > > @@ -3003,13 +3004,16 @@ void __memcg_kmem_uncharge_page(struct page *page, int order) > > */ > > void mem_cgroup_split_huge_fixup(struct page *head) > > { > > + struct mem_cgroup *memcg = head->mem_cgroup; > > int i; > > > > if (mem_cgroup_disabled()) > > return; > > > > A memcg NULL check is needed here. Thanks for the heads up! I'll double check it and send a follow-up fix.