On Mon 29-10-18 23:55:12, Dan Williams wrote: > On Mon, Oct 29, 2018 at 11:29 PM Michal Hocko <mhocko@xxxxxxxxxx> wrote: > > > > On Mon 29-10-18 12:59:11, Alexander Duyck wrote: > > > On Mon, 2018-10-29 at 19:18 +0100, Michal Hocko wrote: > [..] > > > The patches Andrew pushed addressed the immediate issue so that now > > > systems with nvdimm/DAX memory can at least initialize quick enough > > > that systemd doesn't refuse to mount the root file system due to a > > > timeout. > > > > This is about the first time you actually mention that. I have re-read > > the cover letter and all changelogs of patches in this serious. Unless I > > have missed something there is nothing about real users hitting issues > > out there. nvdimm is still considered a toy because there is no real HW > > users can play with. > > Yes, you have missed something, because that's incorrect. There's been > public articles about these parts sampling since May. > > https://www.anandtech.com/show/12828/intel-launches-optane-dimms-up-to-512gb-apache-pass-is-here indeed! > That testing identified this initialization performance problem and > thankfully got it addressed in time for the current merge window. And I still cannot see a word about that in changelogs. -- Michal Hocko SUSE Labs