Messages in this thread | | | Date | Thu, 15 Dec 2005 14:00:13 -0800 | From | Andrew Morton <> | Subject | Re: [2.6 patch] i386: always use 4k stacks |
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Adrian Bunk <bunk@stusta.de> wrote: > > This patch was already sent on: > - 11 Dec 2005 > - 5 Dec 2005 > - 30 Nov 2005 > - 23 Nov 2005 > - 14 Nov 2005
Sigh. I saw the volume of email last time and though "gee, glad I wasn't cc'ed on that lot".
Supporting 8k stacks is a small amount of code and nobody has seen a need to make changes in there for quite a long time. So there's little cost to keeping the existing code.
And the existing code is useful:
a) people can enable it to confirm that their weird crash was due to a stack overflow.
b) If I was going to put together a maximally-stable kernel for a complex server machine, I'd select 8k stacks. We're still just too squeezy, and we've had too many relatively-recent overflows, and there are still some really deep callpaths in there.
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