diff -Nupr src/fs/proc/meminfo.c src/fs/proc/meminfo.c
--- src/fs/proc/meminfo.c	2020-03-11 11:23:26.882602572 +0000
+++ src/fs/proc/meminfo.c	2020-03-11 11:33:19.732537882 +0000
@@ -40,6 +40,7 @@ static int meminfo_proc_show(struct seq_
 	unsigned long sreclaimable, sunreclaim;
 	int lru;
 
+	printk("a\n");
 	si_meminfo(&i);
 	si_swapinfo(&i);
 	committed = percpu_counter_read_positive(&vm_committed_as);
@@ -151,6 +152,7 @@ static int meminfo_proc_show(struct seq_
 
 static int __init proc_meminfo_init(void)
 {
+	printk("a\n");
 	proc_create_single("meminfo", 0, NULL, meminfo_proc_show);
 	return 0;
 }