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SubjectRe: doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots)
>> Ok, the 4kB stack definitely won't work in real life, but that's because 
>> we have some hopelessly bad stack users in the kernel. But the debugging
>> part would be good to try (in fact, it might be a good idea to keep the
>> 8kB stack, but with rather anal debugging. Just the "mcount" part should
>> do that).
>
> You also need IRQ stacks to get down to 4K. The wrong pattern of ten
> different IRQ handlers using a mere 200 bytes each will eventually
> happen and eventually kill you otherwise.

That's in Dave's patchset, and 4K stacks is a config option for now.

M.

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