From: "John Kacur" <jkacur@xxxxxxxxx> Date: Mon, 11 Aug 2008 15:11:46 +0200 > __qdisc_run() calls qdisc_restart() which calls > handle_dev_cpu_collision(skb, dev, q); and then the problem shows up > here: > __get_cpu_var(netdev_rx_stat).cpu_collision++; > > The solution is to disable interrupts around the above increment. Here > is an attached patch to do so. (Thank's to Peter Zijlstra for help in > the analysis and dropping the answer in my lap, so if I got it right > it is due to his help, but if I messed it up, then I did that part all > by myself.) __qdisc_run() always runs in software interrupt context, so I guess this is some problem with the -rt stuff running software interrupts in threads? -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
