Re: [patch 05/14] percpu: Use a Kconfig variable to configure arch specific percpu setup

Christoph Lameter
2007-11-29T01:27:47Z

On Thu, 29 Nov 2007, Andi Kleen wrote:

> On Wed, Nov 28, 2007 at 04:11:37PM -0800, Christoph Lameter wrote:
> > 1. The stack canary
>
> You would need to change gcc with a new option and only allow the stack
> checking when the compiler supports the new option. However the problem
> is still how to get a reasonable fixed offset. Or perhaps just change
> gcc to use a linker symbol relative to %gs that could be set to anything?

I still think we should leave the canary as is.