Re: 4k stacks in 2.6

Andi Kleen
2004-05-26T18:24:52Z

On Wed, May 26, 2004 at 02:17:34PM -0400, hch@infradead.org wrote:
> On Wed, May 26, 2004 at 03:57:05PM +0200, Andi Kleen wrote:
> > Ingo Molnar <mingo@elte.hu> writes:
> > >
> > > do you realize that the 4K stacks feature also adds a separate softirq
> > > and a separate hardirq stack? So the maximum footprint is 4K+4K+4K, with
> >
> > A nice combination would be 8K process stacks with separate irq stacks on
> > i386.
> >
> > Any chance the CONFIGs for those two could be split?
>
> Any reason not to enable interrupt stacks unconditionally and leave
> the stack size choice to the user?

It will probably still break some other patches, like debuggers.

Given that the kernel is supposed to be stable I would not change
it unconditionally in 2.6. Maybe in 2.7.

-Andi