Messages in this thread | | | Date | Thu, 4 Oct 2007 15:39:40 -0400 | From | Rik van Riel <> | Subject | Re: [13/18] x86_64: Allow fallback for the stack |
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On Thu, 4 Oct 2007 12:20:50 -0700 (PDT) Christoph Lameter <clameter@sgi.com> wrote:
> On Thu, 4 Oct 2007, Andi Kleen wrote: > > > We've known for ages that it is possible. But it has been always so > > rare that it was ignored. > > Well we can now address the rarity. That is the whole point of the > patchset.
Introducing complexity to fight a very rare problem with a good fallback (refusing to fork more tasks, as well as lumpy reclaim) somehow does not seem like a good tradeoff.
> > Is there any evidence this is more common now than it used to be? > > It will be more common if the stack size is increased beyond 8k.
Why would we want to do such a thing?
8kB stacks are large enough...
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