From: Michal Hocko <mhocko@xxxxxxxx>
We have seen several bugs where zonelists have not been initialized
properly and it is not really straightforward to track those bugs down.
One way to help a bit at least is to dump zonelists of each node when
they are (re)initialized.
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
---
mm/page_alloc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2e097f336126..c30d59f803fb 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5259,6 +5259,11 @@ static void build_zonelists(pg_data_t *pgdat)
build_zonelists_in_node_order(pgdat, node_order, nr_nodes);
build_thisnode_zonelists(pgdat);
+
+ pr_info("node[%d] zonelist: ", pgdat->node_id);
+ for_each_zone_zonelist(zone, z, &pgdat->node_zonelists[ZONELIST_FALLBACK], MAX_NR_ZONES-1)
+ pr_cont("%d:%s ", zone_to_nid(zone), zone->name);
+ pr_cont("\n");
}
#ifdef CONFIG_HAVE_MEMORYLESS_NODES
--
2.20.1
|