On 12/21/2012 09:28 AM, Yinghai Lu wrote:
>
> which line?
>
> 0xffffffff83000000-0xffffffff83c00000 12M RW PSE
> GLB x pmd
>
> my kernel INIT_SIZE is 27M, and it includes everything that i needed
> in the kernel.
>
We should NEVER have RW + x at the same time (at least when the kernel
is compiled properly.) Looks like your patch does get rid of a bunch of
stuff in the low mapping -- although the low mapping really should never
be +x at all -- but there are still problems with the high mapping.
Oh yes, and then there is EFI. If that means we need to keep a
completely separate page tables for EFI than so be it...
-hpa
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
