On 9/5/07, David Mosberger-Tang <dmosberger@xxxxxxxxx> wrote: > In my opinion, machvec is a bad idea for a temporary workaround. > You'll need to create new header files etc etc all just for a > short-lived workaround. Just my 2 cents. > > --david This is actually a feature. Can be a workaround for platform that didn't manage to make ptcg work, but can be intentionally disabled by design. Big modular scaled out systems may choose to disable it intentionally. I think it's more of feature implementation, which is offered by architecture and has found some users, so I'd say this might stay and not be short-lived. In this case, will machvec be more appropriate? Thanks, --Natalie > > On 9/5/07, Natalie Protasevich <protasnb@xxxxxxxxx> wrote: > > On 9/5/07, Robin Holt <holt@xxxxxxx> wrote: > > > > No :) those interested are big hardware makers of large scaled out > > > > boxes, such as HP, UIS. They are using own asics and are not > > > > necessarily being able to keep chipset native capabilities intact. As > > > > I said in the preamble, the mechanism has to be there so they can turn > > > > the ptc.g off and run the OS. > > > > > > This really sounds like it is best done as a machvec. Currently, Altix > > > (sn2) does not have a ptc.g that spans nodes. We have our own tlb purge > > > mechanism which is very flexible and scalable. Maybe it would be best > > > to follow that example. To repeat Bjorn's comments, this area can be > > > fraught with _VERY_ difficult to diagnose problems. A boot test can > > > hardly be expected to uncover all the races so be patient while we walk > > > through this code. > > > > > All right, all right ... :) I'll do the machvec then. Thanks guys, > > will peek into the sn2 to get an idea. > > > > Regards, > > --Natalie > > - > > To unsubscribe from this list: send the line "unsubscribe linux-ia64" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > -- > Mosberger Consulting LLC, http://www.mosberger-consulting.com/ > - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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