On lun., 2016-02-29 at 10:05 -0800, Peter Hurley wrote: > While I appreciate the attempt, that's not the problem. > > Just to be clear > > if (time_before(jiffies, end) && !need_resched() && > --max_restart) > goto restart; > > aborts softirq *even if 0ns have elapsed*, if NET_RX has woken a process. Sure, now remove the 1st and 2nd condition. You would still 'abort' (ie wakeup ksoftirqd really) when --max_restart becomes 0 So, instead of some subtle load dependent bug, you know have a reliable trigger. The fact it took 3 years for someone to complain about this change should tell us something really. The only way for your bug to hide would be to remove all the 'break infinite loop' logic. And this is not going to happen. -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
