On Wed, 7 Feb 2007 11:19:02 +0100 Andi Kleen <[EMAIL PROTECTED]> wrote:
> > > AFAIK, ia64 creates nodes just depends on SRAT's possible resource > > information. > > Then, ia64 can create cpu-memory-less-node(node with no available > > resource.). > > (*)I don't like this. > > > > If we don't allow memory-less-node, we may have to add several codes for > > cpu-hot-add. > > cpus should be moved to nearby node at hotadd . > > And node-hot-add have to care that cpus mustn't be added before memory, > > cpu-driven > > node-hot-add will never occur. (ACPI's 'container' device spec can't > > guaranntee this.) > > You can also alias node numbers to solve this: just point multiple node > numbers > to the same pgdat. For a memory less node this would be a nearby one. > Hmm, interesting...the 'alias' means follwing ? == NODE_DATA(A) = pgdat_for_A NODE_DATA(B) = pgdat_for_A // B is memory-less. - NODE_DATA(B) is valid but B is not online. == looks complicated..and we have to care /sys/devices/system/node handling. -Kame - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
