On Tue, Mar 9, 2021 at 12:04 AM Vasily Averin <vvs@xxxxxxxxxxxxx> wrote: > > OpenVZ many years accounted memory of few kernel objects, > this helps us to prevent host memory abuse from inside memcg-limited container. > The text is cryptic but I am assuming you wanted to say that OpenVZ has remained on a kernel which was still on opt-out kmem accounting i.e. <4.5. Now OpenVZ wants to move to a newer kernel and thus these patches are needed, right?