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

Rene Herman
2007-07-19T00:50:11Z

On 07/19/2007 02:41 AM, Matt Mackall wrote:

> On Thu, Jul 19, 2007 at 02:15:39AM +0200, Andrea Arcangeli wrote:

>> Using kmalloc(8k) instead of alloc_page() doesn't sound a too big deal
>> and that will solve the problem.
>
> How do you figure?
>
> If you're saying that soft pages helps our 8k stack allocations, it
> doesn't. The memory overhead of soft pages will be higher (5-15%,
> mostly due to file tails in pagecache) than the level at which 8k
> stacks currently run into trouble (1-2% free?).
>
> Not helpful.

With tail-packing it is.

Rene.