Index: sys/platform/pc32/i386/mp_machdep.c
===================================================================
RCS file: /home/dcvs/src/sys/platform/pc32/i386/mp_machdep.c,v
retrieving revision 1.60
diff -u -r1.60 mp_machdep.c
--- sys/platform/pc32/i386/mp_machdep.c	7 Jun 2008 12:03:52 -0000	1.60
+++ sys/platform/pc32/i386/mp_machdep.c	17 Jul 2008 19:31:32 -0000
@@ -347,7 +347,7 @@
 			goto found;
 	} else {
 		/* last 1K of base memory, effective 'top of base' passed in */
-		target = (u_int32_t) (base_memory - 0x400);
+		target = (u_int32_t) ((base_memory * 1024) - 0x400);
 		if ((x = search_for_sig(target, 1024 / 4)) >= 0)
 			goto found;
 	}