--- linux-3.8.13a/arch/x86/Makefile 2013-05-11 16:57:46.000000000 -0400 +++ linux-3.8.13b/arch/x86/Makefile 2014-04-14 17:07:04.300722131 -0400 @@ -137,7 +137,7 @@ # KBUILD_CFLAGS += -fno-asynchronous-unwind-tables # prevent gcc from generating any FP code by mistake -KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) +#KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) KBUILD_CFLAGS += $(call cc-option,-mno-avx,) KBUILD_CFLAGS += $(mflags-y)