Re: x86: 8K stacks by default

[Alan Cox]

>     x86: 8K stacks by default
>     
>     Switch back to 8K stacks as the safer default. Out-of-memory
>     situations are less problematic than silent and hard to debug
>     stack corruption.

On its own that makes the problem worse not better. If you are going to
8K stacks fine but if you want them debuggable then 32bit needs to
always use separate IRQ stacks as well, otherwise you've merely made the
crash cases rarer and harder to debug (deep recursion colliding with deep
IRQ path)

Alan
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