Messages in this thread | | | From | "Albert D. Cahalan" <> | Subject | Re: [patch] severe softirq handling performance bug, fix, 2.4.5 | Date | Sat, 26 May 2001 23:28:18 -0400 (EDT) |
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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.
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