--- linux-2.6.23/mm/hugetlb.c.orig	2008-01-16 12:05:41.496448000 -0500
+++ linux-2.6.23/mm/hugetlb.c	2008-01-17 10:27:21.740353000 -0500
@@ -377,6 +377,11 @@ int copy_hugetlb_page_range(struct mm_st
 		dst_pte = huge_pte_alloc(dst, addr);
 		if (!dst_pte)
 			goto nomem;
+
+		/* if the pagetables are shared dont copy or take references */
+		if(dst_pte == src_pte)
+			continue;
+
 		spin_lock(&dst->page_table_lock);
 		spin_lock(&src->page_table_lock);
 		if (!pte_none(*src_pte)) {