On Fri 28-12-18 11:54:17, Vlastimil Babka wrote: [...] > Michal has a patch [2] that reports the prctl() status separately, but > that doesn't help David's existing userspace. This is something that is not really clear to me. I have asked several times already and never got any reply IIRC. The code is obviously very specific for their setup. Why is it not viable to update the code in question now that a long term, easily backportable and properly supported API exists? I do understand that a lack of such an API pushes people to use whatever sounds usable (even when undocumented) but we do have that interface now. So what is the roadblock? Or do we really want to make vma flags properly supported and carved in stone interface? -- Michal Hocko SUSE Labs