On Thu, 20 Nov 2014, Thor Lancelot Simon wrote: > On Thu, Nov 20, 2014 at 01:05:05PM +0800, Dennis Ferguson wrote: > > > > find hardware which behaves like this to test on). I haven't > > heard anything one way or the other concerning support for MP > > Alphas, but the implicit message from the current state of > > the code is that an MP Alpha isn't a NetBSD target. > > We do run on a pretty good variety of multiprocessor Alpha systems. > Whether it's worth the effort to ensure we continue to do so... well, > it might be worth at least a policy of "do no harm" (in other words, > declaring the necessary barrier operation and using it where we notice > it is needed).
Or you could try to get the kernel to run on a SPARC V9 machine running with RMO memory ordering. There's a lot more of those around. I'm not convinced the existing APIs are sufficient to get that working. Eduardo