Re: [2.6 patch] i386: always use 4k stacks
From: Jörn Engel (joern_at_wohnheim.fh-wedel.de)
Date: 11/16/05
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Date: Wed, 16 Nov 2005 14:51:16 +0100 To: Andi Kleen <ak@suse.de>
On Wed, 16 November 2005 13:57:36 +0100, Andi Kleen wrote:
>
> I think it's in general risky. It's like balancing without a safety
> net. Might be a nice hobby, but for real production you want a safety
> net. That's simple because there are likely some code paths through
> the code that need more stack space and that are rarely hit (and
> cannot be easily found by static analysis, e.g. if they involve
> indirect pointers or particularly complex configuration setups).
It isn't that hard to find such places. Trouble is that you find so
many of them and it takes quite a while to go through them all. Years
is a good unit for "quite a while".
Jörn
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