netdev - Re: IMQ bug: kernel reboot immediately

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Date:	Thu, 23 Apr 2009 20:32:06 -0300
From:	Salatiel Filho <salatiel.filho@...il.com>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	Jan Engelhardt <jengelh@...ozas.de>,
	Jarek Poplawski <jarkao2@...il.com>,
	"Y. D." <duyuyang@...il.com>, netdev <netdev@...r.kernel.org>,
	netfilter-devel <netfilter-devel@...r.kernel.org>
Subject: Re: IMQ bug: kernel reboot immediately

On Thu, Apr 23, 2009 at 09:41, Patrick McHardy <kaber@...sh.net> wrote:
> Salatiel Filho wrote:
>>
>> On Thu, Apr 23, 2009 at 08:22, Patrick McHardy <kaber@...sh.net> wrote:
>>>
>>> Salatiel Filho wrote:
>>>>
>>>> Using imq i can shape upload on ppp0 [postrouting] while still having
>>>> the internal private ips from the hosts, and i can shape download in
>>>> ppp0 [prerouting] after get the correct nat'ed addresses.
>>>>
>>>> Is there a way to achieve this in IFB ? in a simple way ... :)
>>>
>>> Currently not, the conntrack association is done at a later point.
>>> We could add a classifier or TC action that performs the lookup
>>> during ingress classification.
>>>
>>> Alternatively classifiers using conntrack information (like cls_flow)
>>> could perform the lookup directly, but that would probably get a bit
>>> ugly since some validation needs to be performed previously and it
>>> would add a module dependency on conntrack.
>>>
>>>
>> Using this actions would make  sfq hashing by dest ip or source ip
>> work just like it works in imq ?
>
> Not with the SFQ default hash since it classifies based on the
> addresses in the IP header. But you could use the flow classifier,
> which can use the addresses from the conntrack entry. This would
> behave similar to IMQ+SFQ.
Ok , i was tying to keepthe discussion to the mainline kernel :)
By sfq i mean esfq [though i read somewhere sfq will implement a way
to hash by src / dest ip] , or wrr :)
Actually i was never able to find out why wrr is not in mainline
kernel. In my opinion it is the best round robin qdisc i have ever
used.


>
>



-- 
[]'s
Salatiel

"O maior prazer do inteligente é bancar o  idiota
   diante de um  idiota que banca o inteligente".
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