Index: linux-2.6.18-mm2/arch/ia64/Kconfig
===================================================================
--- linux-2.6.18-mm2.orig/arch/ia64/Kconfig	2006-09-28 15:28:43.000000000 -0500
+++ linux-2.6.18-mm2/arch/ia64/Kconfig	2006-09-28 17:04:28.106879587 -0500
@@ -24,7 +24,7 @@ config 64BIT
 
 config ZONE_DMA
 	def_bool y
-	depends on !IA64_SGI_SN2
+#	depends on !IA64_SGI_SN2
 
 config MMU
 	bool