.snip.. > >>> David Vrabel has a patchset which I presumed would be pulled through > >the > >>> Xen tree this merge window: > >>> > >>> [PATCHv5 0/8] x86/xen: fixes for mapping high MMIO regions (and > >remove > >>> _PAGE_IOMAP) > >>> > >>> That frees up this bit. > >>> > >> > >> Thanks, I was not aware of that patch. Based on it, I intend to > >force > >> automatic NUMA balancing to depend on !XEN and see what the reaction > >is. If > >> support for Xen is really required then it potentially be re-enabled > >if/when > >> that series is merged assuming they do not need the bit for something > >else. > >> > > > >Amazon EC2 does have large memory instance types with NUMA exposed to > >the guest (e.g. c3.8xlarge, i2.8xlarge, etc), so it'd be preferable > >(to me anyway) if we didn't require !XEN. What about the patch that David Vrabel posted: http://osdir.com/ml/general/2014-03/msg41979.html Has anybody taken it for a spin? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>