Use %llu not %Lu in sscanf/printf format strings.
--- diff/drivers/md/dm.h	2005-01-12 15:21:22.000000000 +0000
+++ source/drivers/md/dm.h	2005-01-12 18:54:31.000000000 +0000
@@ -28,7 +28,7 @@
  * in types.h.
  */
 #ifdef CONFIG_LBD
-#define SECTOR_FORMAT "%Lu"
+#define SECTOR_FORMAT "%llu"
 #else
 #define SECTOR_FORMAT "%lu"
 #endif