--- linux-2.6.20-rc6-mm1/arch/x86_64/Kconfig.orig	2007-01-28 17:32:09.000000000 -0500
+++ linux-2.6.20-rc6-mm1/arch/x86_64/Kconfig	2007-01-28 17:32:48.000000000 -0500
@@ -405,7 +405,7 @@
 config ARCH_HAS_SETUP_ADDITIONAL_PAGES
 	bool
 	default y
-	depends on X86_64
+	depends on X86_64 && IA32_EMULATION
 
 config OUT_OF_LINE_PFN_TO_PAGE
 	def_bool y