Messages in this thread | | | Date | Wed, 15 Nov 2006 16:57:56 -0800 (PST) | From | Christoph Lameter <> | Subject | Re: [patch 2/2] enables booting a NUMA system where some nodes have no memory |
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On Thu, 16 Nov 2006, KAMEZAWA Hiroyuki wrote:
> > But there is no memory on the node. Does the zonelist contain the zones of > > the node without memory or not? We simply fall back each allocation to the > > next node as if the node was overflowing? > yes. just fallback.
Ok, so we got a useless pglist_data struct and the struct zone contains a zonelist that does not include the zone.
numa_node_id() points to this and we always get allocations redirected to other nodes. The slab duplicates its per node structures on the fallback node.
> The zonelist[] donen't contain empty-zone.
So we will never encounter that zone except when going to the pglist_data struct through numa_node_id()? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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