On Thu, Mar 24, 2022 at 7:46 PM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: > > On Thu, Mar 24, 2022 at 11:50:47AM +0800, Jason Wang wrote: > > > It's simply because we don't want to break existing userspace. [1] > > I'm still waiting to hear what exactly breaks in real systems. > > As I explained this is not a significant change, but it could break > something in a few special scenarios. > > Also the one place we do have ABI breaks is security, and ulimit is a > security mechanism that isn't working right. So we do clearly need to > understand *exactly* what real thing breaks - if anything. > > Jason > To tell the truth, I don't know. I remember that Openstack may do some accounting so adding Sean for more comments. But we really can't image openstack is the only userspace that may use this. To me, it looks more easier to not answer this question by letting userspace know about the change, Thanks
