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Message-ID: <5fb87db3-d5bd-714b-213d-6821f4bf37da@gmail.com> Date: Mon, 25 Feb 2019 22:42:17 -0800 From: Eric Dumazet <eric.dumazet@...il.com> To: John Fastabend <john.fastabend@...il.com>, Networking <netdev@...r.kernel.org>, Jamal Hadi Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>, Jiri Pirko <jiri@...nulli.us> Subject: [BUG] net/sched : qlen can not really be per cpu ? HTB + pfifo_fast as a leaf qdisc hits badly the following warning in htb_activate() : WARN_ON(cl->level || !cl->leaf.q || !cl->leaf.q->q.qlen); This is because pfifo_fast does not update sch->q.qlen, but per cpu counters. So cl->leaf.q->q.qlen is zero. HFSC, CBQ, DRR, QFQ have the same problem. Any ideas how we can fix this ? Thanks !
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