--- mm/memory.c	25 Jan 2002 20:15:16 -0000	1.2
+++ mm/memory.c	13 May 2002 00:05:05 -0000
@@ -118,8 +118,11 @@ static inline void free_one_pgd(pgd_t * 
 	}
 	pmd = pmd_offset(dir, 0);
 	pgd_clear(dir);
-	for (j = 0; j < PTRS_PER_PMD ; j++) {
+	for (j = 0; j < (PTRS_PER_PMD - (PREFETCH_STRIDE/sizeof(*pmd))) ; j++) {
 		prefetchw(pmd + j + PREFETCH_STRIDE/sizeof(*pmd));
+		free_one_pmd(pmd+j);
+	}
+	for (; j < PTRS_PER_PMD ; j++) {
 		free_one_pmd(pmd+j);
 	}
 	pmd_free(pmd);