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SubjectRe: [patch] severe softirq handling performance bug, fix, 2.4.5
Date
David S. Miller
> Ingo Molnar writes:

>> (unlike bottom halves, soft-IRQs do not preempt kernel code.)
> ...
>
> Since when do we have this rule? :-)
...
> You should check Softirqs on return from every single IRQ.
> In do_softirq() it will make sure that we won't run softirqs
> while already doing so or being already nested in a hard-IRQ.
>
> Every port works this way, I don't know where you got this "soft-IRQs
> cannot run when returning to kernel code" rule, it simply doesn't
> exist.

After you two argue this out, please toss a note in Documentation.
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