> On Jan 8, 2022, at 8:44 AM, Andy Lutomirski <luto@xxxxxxxxxx> wrote: > > The purpose of mmgrab() and mmdrop() is to make "lazy tlb" mode safe. Just wondering: In a world of ASID/PCID - does the “lazy TLB” really have a worthy advantage? Considering the fact that with PTI anyhow address spaces are switched all the time, can’t we just get rid of it?