--- a/mm/page_alloc.c~mm-page_allocc-use-node_mask_none-in-build_zonelists +++ a/mm/page_alloc.c @@ -5692,14 +5692,13 @@ static void build_zonelists(pg_data_t *p { static int node_order[MAX_NUMNODES]; int node, load, nr_nodes = 0; - nodemask_t used_mask; + nodemask_t used_mask = NODE_MASK_NONE; int local_node, prev_node; /* NUMA-aware ordering of nodes */ local_node = pgdat->node_id; load = nr_online_nodes; prev_node = local_node; - nodes_clear(used_mask); memset(node_order, 0, sizeof(node_order)); while ((node = find_next_best_node(local_node, &used_mask)) >= 0) {