fix OOM killing processes wrongly thought MPOL_BIND

I only have CONFIG_NUMA=y for build testing: surprised when trying a memhog to see lots of other processes killed with "No available memory (MPOL_BIND)". memhog is killed correctly once we initialize nodemask in constrained_alloc(). Signed-off-by: Hugh Dickins <[email protected]> Acked-by: Christoph Lameter <[email protected]> Acked-by: William Irwin <[email protected]> Acked-by: KAMEZAWA Hiroyuki <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
rtvt123 · Apr 24, 2007 · 3d124cb · 3d124cb
1 parent fdc30b3
commit 3d124cb
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
@@ -176,6 +176,8 @@ static inline int constrained_alloc(struct zonelist *zonelist, gfp_t gfp_mask)
 	struct zone **z;
 	nodemask_t nodes;
 	int node;
+
+	nodes_clear(nodes);
 	/* node has memory ? */
 	for_each_online_node(node)
 		if (NODE_DATA(node)->node_present_pages)