Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...?

Jesper Juhl
2007-07-17T23:39:27Z

On 17/07/07, William Lee Irwin III <wli@holomorphy.com> wrote:
> At some point in the past, I wrote:
> >> If at some point one of the pro-4k stacks crowd can prove that all
> >> code paths are safe, or introduce another viable alternative (such as
> >> Matt's idea for extending the stack dynamically), then removing the 8k
> >> stacks option makes sense.
>
> On Mon, Jul 16, 2007 at 11:54:38PM +0100, Alan Cox wrote:
> > Any x86-32 path unsafe with 4K stacks is almost certainly unsafe with 8K
> > stacks because the 8K stacks do not have seperate IRQ stack paths, so you
> > have the same space but split. It might be less predictable on 8K stacks
> > but it isn't absent.
>
> At hch's suggestion I rewrote the separate IRQ stack configurability
> patch into one making IRQ stacks mandatory and unconfigurable, and
> hence enabled with 8K stacks.
>
For what it's worth, that sounds good to me - like something that we
would want merged.

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Jesper Juhl <jesper.juhl@gmail.com>
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