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

Rene Herman
2007-07-16T23:06:24Z

On 07/17/2007 12:53 AM, Ray Lee wrote:

> On 7/16/07, Alan Cox <alan@lxorguk.ukuu.org.uk> 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.
>
> Understood, but isn't that an argument pro interrupt stacks, rather
> than one against 8k? wli has a patch to break out the interrupt stack
> feature from the 4k/8k choice.

Yes but it's also an argument that the 4K stacks don't make the _current_
situation without CONFIG_4KSTACKS selected worse and given that you trust
that current situation, that leaves you without your argument :-)

Rene.