Index: linux-2.6.15-rc1-mm2/mm/mempolicy.c
===================================================================
--- linux-2.6.15-rc1-mm2.orig/mm/mempolicy.c	2005-11-18 12:28:40.000000000 -0800
+++ linux-2.6.15-rc1-mm2/mm/mempolicy.c	2005-11-18 12:28:50.000000000 -0800
@@ -189,13 +189,14 @@ static struct mempolicy *mpol_new(int mo
 }
 
 /* Check if we are the only process mapping the page in question */
-static inline int single_mm_mapping(struct mm_struct *mm,
+static int single_mm_mapping(struct mm_struct *mm,
 			struct address_space *mapping)
 {
 	struct vm_area_struct *vma;
 	struct prio_tree_iter iter;
 	int rc = 1;
 
+	printk(KERN_ERR "single_mm_mapping: %p %p\n", mm, mapping);
 	spin_lock(&mapping->i_mmap_lock);
 	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, 0, ULONG_MAX)
 		if (mm != vma->vm_mm) {
@@ -259,6 +260,7 @@ static int check_pte_range(struct vm_are
 			continue;
 		}
 		nid = pfn_to_nid(pfn);
+		printk(KERN_ERR "check_pte_range: Node=%d nodes=%lx flags=%lx\n", nid, nodes->bits[0], flags);
 		if (!node_isset(nid, *nodes) == !(flags & MPOL_MF_INVERT)) {
 			if (pagelist) {
 				struct page *page = pfn_to_page(pfn);
@@ -526,14 +528,17 @@ long do_mbind(unsigned long start, unsig
 	len = (len + PAGE_SIZE - 1) & PAGE_MASK;
 	end = start + len;
 
+	printk(KERN_ERR "3\n");
 	if (end < start)
 		return -EINVAL;
 	if (end == start)
 		return 0;
 
+	printk(KERN_ERR "4\n");
 	if (mpol_check_policy(mode, nmask))
 		return -EINVAL;
 
+	printk(KERN_ERR "5\n");
 	new = mpol_new(mode, nmask);
 	if (IS_ERR(new))
 		return PTR_ERR(new);
@@ -701,6 +706,7 @@ int migrate_to_node(struct mm_struct *mm
 	LIST_HEAD(pagelist);
 	int err = 0;
 
+	printk(KERN_ERR "migrate_to_node %p %d->%d %x\n",mm, source, dest,flags);
 	nodes_clear(nmask);
 	node_set(source, nmask);
 
@@ -715,7 +721,8 @@ int migrate_to_node(struct mm_struct *mm
 		if (!list_empty(&pagelist))
 			putback_lru_pages(&pagelist);
 
-	}
+	} else
+		printk(KERN_ERR "pagelist empty\n");
 	return err;
 }
 
@@ -874,6 +881,7 @@ asmlinkage long sys_mbind(unsigned long 
 	nodemask_t nodes;
 	int err;
 
+	printk(KERN_ERR "sys_mbind\n");
 	err = get_nodes(&nodes, nmask, maxnode);
 	if (err)
 		return err;
Index: linux-2.6.15-rc1-mm2/mm/vmscan.c
===================================================================
--- linux-2.6.15-rc1-mm2.orig/mm/vmscan.c	2005-11-18 12:28:44.000000000 -0800
+++ linux-2.6.15-rc1-mm2/mm/vmscan.c	2005-11-18 12:28:50.000000000 -0800
@@ -770,6 +770,7 @@ int migrate_page_remove_references(struc
 	__put_page(page);
 	write_unlock_irq(&mapping->tree_lock);
 
+
 	return 0;
 }
 EXPORT_SYMBOL(swap_page);
@@ -870,6 +871,7 @@ int migrate_pages(struct list_head *from
 	int swapwrite = current->flags & PF_SWAPWRITE;
 	int rc;
 
+	printk(KERN_ERR "migrate pages\n");
 	if (!swapwrite)
 		current->flags |= PF_SWAPWRITE;
 
Index: linux-2.6.15-rc1-mm2/mm/rmap.c
===================================================================
--- linux-2.6.15-rc1-mm2.orig/mm/rmap.c	2005-11-18 12:28:44.000000000 -0800
+++ linux-2.6.15-rc1-mm2/mm/rmap.c	2005-11-18 12:28:50.000000000 -0800
@@ -558,7 +558,8 @@ static int try_to_unmap_one(struct page 
 		goto out_unmap;
 	}
 
-	/* If the page is recently referenced (perhaps page_referenced
+	/*
+	 * If the page is recently referenced (perhaps page_referenced
 	 * skipped over this mm) then we should reactivate it.
  	 */
 	if (ptep_clear_flush_young(vma, address, pte)) {
@@ -592,6 +593,7 @@ static int try_to_unmap_one(struct page 
 			spin_unlock(&mmlist_lock);
 		}
 		set_pte_at(mm, address, pte, swp_entry_to_pte(entry));
+		printk(KERN_ERR "swap pte installed at %p %ld %p\n", page, address, pte);
 		BUG_ON(pte_file(*pte));
 		dec_mm_counter(mm, anon_rss);
 	} else
Index: linux-2.6.15-rc1-mm2/Makefile
===================================================================
--- linux-2.6.15-rc1-mm2.orig/Makefile	2005-11-18 09:47:15.000000000 -0800
+++ linux-2.6.15-rc1-mm2/Makefile	2005-11-18 12:28:50.000000000 -0800
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 15
-EXTRAVERSION =-rc1-mm2
+EXTRAVERSION =-rc1-mm2-mig
 NAME=Affluent Albatross
 
 # *DOCUMENTATION*