There is no need for testing the values because we already know what they should be. Just set them in straight way. Signed-off-by: Cyrill Gorcunov --- Index: linux-2.6.git/arch/x86/kernel/head_64.S =================================================================== --- linux-2.6.git.orig/arch/x86/kernel/head_64.S 2008-05-13 19:17:31.000000000 +0400 +++ linux-2.6.git/arch/x86/kernel/head_64.S 2008-05-13 19:35:11.000000000 +0400 @@ -155,9 +155,7 @@ ENTRY(secondary_startup_64) */ /* Enable PAE mode and PGE */ - xorq %rax, %rax - btsq $5, %rax - btsq $7, %rax + movq $(X86_CR4_PAE | X86_CR4_PGE), %rax movq %rax, %cr4 /* Setup early boot stage 4 level pagetables. */ -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/