netdev - Re: WARNING: CPU: 3 PID: 0 at net/sched/sch_hfsc.c:1388 hfsc_dequeue+0x319/0x350 [sch

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Date:   Fri, 22 Jun 2018 13:05:04 +0200 (CEST)
From:   Marco Berizzi <pupilla@...ero.it>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: WARNING: CPU: 3 PID: 0 at net/sched/sch_hfsc.c:1388
 hfsc_dequeue+0x319/0x350 [sch_hfsc]

> Il 21 giugno 2018 alle 1.00 Cong Wang <xiyou.wangcong@...il.com> ha scritto:
> Please also test HFSC_RSC ("rt") if possible.

Hi Cong,

sorry for the delayed response.
I have tested this hfsc rt setup:

tc class add dev eth2 parent 1:2 classid 1:16 hfsc rt m2 500kbit
and
tc class add dev eth2 parent 1:2 classid 1:16 hfsc rt m2 5000kbit
and
tc class add dev eth2 parent 1:2 classid 1:16 hfsc rt m2 20000kbit

and I was getting the expected throughput specified by the m2
parameter.

> If you can confirm nothing breaks, I will send it out formally.

after 52 hours uptime I don't see the previous error anymore.
 
> Thanks for testing!

and thanks for the patch.