diff -Nupr src/mm/slub.c src/mm/slub.c

--- src/mm/slub.c	2020-03-11 11:23:32.406727384 +0000

+++ src/mm/slub.c	2020-03-11 11:28:27.973568215 +0000

@@ -5836,6 +5836,9 @@ void get_slabinfo(struct kmem_cache *s,

 	int node;

 	struct kmem_cache_node *n;

+	if (!jiffies)

+		printk("slabinfo\n");

+

 	for_each_kmem_cache_node(s, node, n) {

 		nr_slabs += node_nr_slabs(n);

 		nr_objs += node_nr_objs(n);