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Re: Regarding ISR stack

The code of changing stack is under arch/i386. So at least it is
considered architecture-dependent, rather than architecture-neutral.
While not sure whether it is available at other architecture than x86,
I think it is at least not supposed to be available at all
architectures.


2007/2/5, Rajat Jain <rajat.noida.india@xxxxxxxxx>: 
>
> It depends on whether you have CONFIG_4KSTACKS or not.
>
> If it's not defined, then you have 8k stacks for each thread, and the
> stack of a thread is used during the execution of the ISR that
> interrupted its execution.
>
> If it's defined, then you have 4k stacks for each thread, and a
> separate stack to handle the ISRs.
>

Isn't the above statement x86 focussed? Or is the option only
available on x86 (the stack size configurable only on x86)?

I read you can configure it to one page (in which case ISR will have
separate stack) or two page (in which case ISR will share stack)?

Regards,

Rajat

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