On Fri, Dec 20, 2019 at 04:32:13PM -0800, Dan Williams wrote: > > > There's already a limit, it's just a much larger one. :) What does "no limit" > > > really mean, numerically, to you in this case? > > > > I guess I mean 'hidden limit' - hitting the limit and failing would > > be managable. > > > > I think 7 is probably too low though, but we are not using 1GB huge > > pages, only 2M.. > > What about RDMA to 1GB-hugetlbfs and 1GB-device-dax mappings? I don't think the failing testing is doing that. It is also less likely that 1GB regions will need multi-mapping, IMHO. Jason
