On Sat, Aug 19, 2017 at 5:37 AM, Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx> wrote: > This important to call qdisc_tree_reduce_backlog() after changing queue > length. Parent qdisc should deactivate class in ->qlen_notify() called from > qdisc_tree_reduce_backlog() but this happens only if qdisc->q.qlen in zero. Good catch! I didn't realize qdisc_reset() actually resets all classes... Acked-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>