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SubjectRe: Realtime Preemption, 2.6.12, Beginners Guide?

* Alistair John Strachan <s0348365@sms.ed.ac.uk> wrote:

> It's annoying that this is so readily reproducible here, yet almost
> impossible to debug, and clearly a sideaffect of 4KSTACKS.. without it
> actually being a stack overflow.
>
> I realise 4KSTACKS is a considerable rework of the IRQ handler, etc.
> and probably even more heavily modified by rt-preempt, but is there
> nothing else that can be tested before a serial console run?

4K stacks never really caused any trouble under PREEMPT_RT (or any other
kernel i tried). It's not that complex either.

one useful thing could be to give me exact instructions on how to set up
an openvpn network similar to yours, and what kind of workload to
generate. Maybe i can reproduce it here.

Ingo
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