--- linux-2.6/init/main.c~	2006-07-11 02:35:10.000000000 -0400
+++ linux-2.6/init/main.c	2006-07-11 02:49:01.000000000 -0400
@@ -350,6 +350,10 @@ static void __init setup_per_cpu_areas(v
 }
 #endif /* CONFIG_HAVE_SETUP_PER_CPU_AREA */
 
+#include <linux/ext3_fs_i.h>
+#include <linux/skbuff.h>
+#include <linux/sched.h>
+
 /* Called by boot processor to activate the rest. */
 static void __init smp_init(void)
 {
--- linux-2.6.20.noarch/init/main.c~	2007-02-14 11:47:41.000000000 -0500
+++ linux-2.6.20.noarch/init/main.c	2007-02-14 11:48:39.000000000 -0500
@@ -403,6 +403,15 @@ static void __init smp_init(void)
 	/* Any cleanup work */
 	printk(KERN_INFO "Brought up %ld CPUs\n", (long)num_online_cpus());
 	smp_cpus_done(setup_max_cpus);
+
+	printk(KERN_DEBUG "sizeof(vma)=%u bytes\n", (unsigned int) sizeof(struct vm_area_struct));
+	printk(KERN_DEBUG "sizeof(page)=%u bytes\n", (unsigned int) sizeof(struct page));
+	printk(KERN_DEBUG "sizeof(inode)=%u bytes\n", (unsigned int) sizeof(struct inode));
+	printk(KERN_DEBUG "sizeof(dentry)=%u bytes\n", (unsigned int) sizeof(struct dentry));
+	printk(KERN_DEBUG "sizeof(ext3inode)=%u bytes\n", (unsigned int) sizeof(struct ext3_inode_info));
+	printk(KERN_DEBUG "sizeof(buffer_head)=%u bytes\n", (unsigned int) sizeof(struct buffer_head));
+	printk(KERN_DEBUG "sizeof(skbuff)=%u bytes\n", (unsigned int) sizeof(struct sk_buff));
+	printk(KERN_DEBUG "sizeof(task_struct)=%u bytes\n", (unsigned int) sizeof(struct task_struct));
 }
 
 #endif