diff -Napur -X /home/jbarnes/dontdiff linux-2.5-memmap.orig/arch/ia64/mm/init.c linux-2.5-memmap/arch/ia64/mm/init.c
--- linux-2.5-memmap.orig/arch/ia64/mm/init.c	2004-07-28 15:42:32.000000000 -0700
+++ linux-2.5-memmap/arch/ia64/mm/init.c	2004-07-28 15:38:19.000000000 -0700
@@ -433,14 +433,17 @@ virtual_memmap_init (u64 start, u64 end,
 }
 
 void
-memmap_init (struct page *start, unsigned long size, int nid,
-	     unsigned long zone, unsigned long start_pfn)
+memmap_init (unsigned long size, int nid, unsigned long zone,
+	     unsigned long start_pfn)
 {
 	if (!vmem_map)
 		memmap_init_zone(size, nid, zone, start_pfn);
 	else {
+		struct page *start;
 		struct memmap_init_callback_data args;
 
+		start = pfn_to_page(start_pfn);
+
 		args.start = start;
 		args.end = start + size;
 		args.nid = nid;
diff -Napur -X /home/jbarnes/dontdiff linux-2.5-memmap.orig/include/asm-ia64/pgtable.h linux-2.5-memmap/include/asm-ia64/pgtable.h
--- linux-2.5-memmap.orig/include/asm-ia64/pgtable.h	2004-07-28 15:42:04.000000000 -0700
+++ linux-2.5-memmap/include/asm-ia64/pgtable.h	2004-07-28 15:38:45.000000000 -0700
@@ -515,7 +515,7 @@ do {											\
 #  ifdef CONFIG_VIRTUAL_MEM_MAP
   /* arch mem_map init routine is needed due to holes in a virtual mem_map */
 #   define __HAVE_ARCH_MEMMAP_INIT
-    extern void memmap_init (struct page *start, unsigned long size, int nid, unsigned long zone,
+    extern void memmap_init (unsigned long size, int nid, unsigned long zone,
 			     unsigned long start_pfn);
 #  endif /* CONFIG_VIRTUAL_MEM_MAP */
 # endif /* !__ASSEMBLY__ */