On Fri, Apr 5, 2013 at 1:51 PM, Michael R. Hines <mrhi...@linux.vnet.ibm.com> wrote: > Sorry, I was wrong. ignore the comments about cgroups. That's still broken. > (i.e. trying to register RDMA memory while using a cgroup swap limit cause > the process get killed). > > But the GIFT flag patch works (my understanding is that GIFT flag allows the > adapter to transmit stale memory information, it does not have anything to > do with cgroups specifically).
The point of the GIFT patch is to avoid triggering copy-on-write so that memory doesn't blow up during migration. If that doesn't work then there's no point to the patch. - R.
