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

From: Ray Lee
Date: Wed Jul 18 2007 - 02:39:19 EST


On 7/17/07, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
On Mon, 16 Jul 2007 16:15:28 -0700
"Ray Lee" <ray-lk@xxxxxxxxxxxxx> wrote:
> Heh :-). No, it's not a question of trust. First and foremost, it's
> that there are still users who say that they can crash a current
> 4k+interrupt stacks kernel, while the 8k without interrupt stacks is
> fine.

You forgot "most of the time".

Yeah, fair enough.

Its statistically less likely, which
merely means its evilly hard to debug

Not being able to debug the cases that occur (and the fact that
they're rare, as you're pointing out) is as much of a problem as the
crashes themselves. 8k + IRQ stacks with a warning when 4k of process
stack is exceeded would seem like a reasonable first step to making 4k
a palatable default.

Ray
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