Index: linux-2.6.16-rc6/mm/mempolicy.c
===================================================================
--- linux-2.6.16-rc6.orig/mm/mempolicy.c	2006-03-11 14:12:55.000000000 -0800
+++ linux-2.6.16-rc6/mm/mempolicy.c	2006-03-13 18:51:49.000000000 -0800
@@ -744,13 +744,16 @@ long do_mbind(unsigned long start, unsig
 	int err;
 	LIST_HEAD(pagelist);
 
+	printk("mbind 1\n");
 	if ((flags & ~(unsigned long)(MPOL_MF_STRICT |
 				      MPOL_MF_MOVE | MPOL_MF_MOVE_ALL))
 	    || mode > MPOL_MAX)
 		return -EINVAL;
+	printk("mbind 2\n");
 	if ((flags & MPOL_MF_MOVE_ALL) && !capable(CAP_SYS_RESOURCE))
 		return -EPERM;
 
+	printk("mbind 3\n");
 	if (start & ~PAGE_MASK)
 		return -EINVAL;
 
@@ -760,14 +763,20 @@ long do_mbind(unsigned long start, unsig
 	len = (len + PAGE_SIZE - 1) & PAGE_MASK;
 	end = start + len;
 
+	printk("mbind 4\n");
+
 	if (end < start)
 		return -EINVAL;
 	if (end == start)
 		return 0;
+	printk("mbind 5 mode=%ld nmask=%lx onlinemap=%lx\n", mode,
+			*((unsigned long *)(nmask)),
+			*((unsigned long *)(&node_online_map)));
 
 	if (mpol_check_policy(mode, nmask))
 		return -EINVAL;
 
+	printk("mbind 6\n");
 	new = mpol_new(mode, nmask);
 	if (IS_ERR(new))
 		return PTR_ERR(new);
@@ -884,6 +893,9 @@ asmlinkage long sys_mbind(unsigned long 
 	err = get_nodes(&nodes, nmask, maxnode);
 	if (err)
 		return err;
+	printk("sysmbind mode=%ld nmask=%lx nodes=%lx\n", mode,
+			*((unsigned long *)(nmask)),
+			*((unsigned long *)(&nodes)));
 	return do_mbind(start, len, mode, &nodes, flags);
 }