netdev - Re: [PATCH net] net: sched: Remove TCA

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Date:   Wed, 31 Oct 2018 13:42:23 +0100 (CET)
From:   Marco Berizzi <pupilla@...ero.it>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        dsahern@...nel.org
Subject: Re: [PATCH net] net: sched: Remove TCA_OPTIONS from policy

> Il 26 ottobre 2018 alle 20.19 Cong Wang <xiyou.wangcong@...il.com> ha scritto:
> 
> On Fri, Oct 26, 2018 at 4:35 AM Marco Berizzi <pupilla@...ero.it> wrote:
> 
> > Apologies for bothering you again.
> > I applied your patch to 4.19, but after issuing this
> > command:
> > 
> > root@...imero:~# tc qdisc add dev eth0 root handle 1:0 hfsc default 1
> > root@...imero:~# ping 10.81.104.1
> > PING 10.81.104.1 (10.81.104.1) 56(84) bytes of data.
> > ^C
> > --- 10.81.104.1 ping statistics ---
> > 2 packets transmitted, 0 received, 100% packet loss, time 1001ms
> > 
> > I'm losing ipv4 connectivity.
> > If I remove the qdisc everything is going to work again:
> 
> Did this really work before?
> 
> You specify a default class without adding it, so the packets are dropped.
> 
> How would you expect this to work? :)

:-) yes indeed. Apologies for the noise.