Hello! > Such rule does not even make this piece of code legal. Consider: > > task1:cpu0: x = counters[smp_processor_id()]; > cpu0: PREEMPT > task2:cpu0: x = counters[smp_processor_id()]; > task2:cpu0: counters[smp_processor_id()] = x + 1; > cpu0: PREEMPT > task1:cpu0: counters[smp_processor_id()] = x + 1; > full garbage Yup. And this has nothing to do with SMP... > But it does bring up important point, preemption people need to > fully audit entire networking. Well, we can make this. It is too serious. Anyway, this means that preemptive patch for 2.4 is "tainting" :-) Alexey - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html