On Wed, May 11, 2016 at 7:38 AM, Paolo Abeni <pab...@redhat.com> wrote:
> Uh, we have likely the same issue in the net_rx_action() function, which > also execute with bh disabled and check for jiffies changes even on > single core hosts ?!? That is why we have a loop break after netdev_budget=300 packets. And a sysctl to eventually tune this. Same issue for softirq handler, look at commit 34376a50fb1fa095b9d0636fa41ed2e73125f214 Your questions about this central piece of networking code are worrying. > > Aren't jiffies updated by the timer interrupt ? and thous even with > bh_disabled ?!? Exactly my point : jiffie wont be updated in your code, since you block BH.