linux-kernel - Re: some tc commands fail on 2.6.29-rc6-git5, works on 2.6.28.7

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Message-ID: <a5d9929e0903040609x43dbeda9h26a882897a177400@mail.gmail.com>
Date:	Wed, 4 Mar 2009 14:09:57 +0000
From:	Joao Correia <joaomiguelcorreia@...il.com>
To:	John Dykstra <john.dykstra1@...il.com>
Cc:	Jarek Poplawski <jarkao2@...il.com>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: some tc commands fail on 2.6.29-rc6-git5, works on 2.6.28.7

Hello

Just to confirm that i also have all traffic control/shaping (QoS,
connection limits, scheduling, etc) enabled on the config i use.

Its not just the specific version of tc i posted, i tried one from
last year (october, but i didnt note the exact build) with the same
result.

Cheers,
Joao Correia
Centro de Informatica
Universidade da Beira Interior
Portugal

On Wed, Mar 4, 2009 at 2:50 AM, John Dykstra <john.dykstra1@...il.com> wrote:
> On Tue, 2009-03-03 at 23:10 +0000, Joao Correia wrote:
>> I have confirmed again that the exact same commands (as on the
>> original message), work flawlessly on 2.6.28.7 without a hitch, and,
>> AFAIK, work as intended. I have also tried the latest 2.6.29-rc6-git7
>> and it still fails like on git6.
>
> I have also reproduced this on Linus' latest 2.6.29-rc6 tree, using tc
> version iproute2-ss071016 and a kernel config with all traffic control
> features enabled.
>
> The error reported by tc comes from the kernel-level check added by:
>
>        commit c1b56878fb68e9c14070939ea4537ad4db79ffae
>        Author: Stephen Hemminger <shemminger@...tta.com>
>        Date:   Tue Nov 25 21:14:06 2008 -0800
>
>        tc: policing requires a rate estimator
>
>    Found that while trying average rate policing, it was possible to
>    request average rate policing without a rate estimator. This results
>    in no policing which is harmless but incorrect.
>
>    Since policing could be setup in two steps, need to check
>    in the kernel.
>
>    Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
>    Signed-off-by: David S. Miller <davem@...emloft.net>
>
> I got the same error when using the tc version iproute2-ss090115 built
> this evening from the public git repository.
>
>  -- John
>
>
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