Re: Is this nf_conn "use" counter bug???

[Patrick McHardy <kaber@trash.net>]

kendo wrote:
> ----- Original Message ----- 
> From: "kendo" <kendo999@sohu.com>
> To: "Patrick McHardy" <kaber@trash.net>
> Sent: Monday, November 23, 2009 7:12 PM
> Subject: Re: Is this nf_conn "use" counter bug???
> 
> 
>>> This code looks like from the 2.4 era.
>> ----I'm sorry, I copy from 2.6.12,not 2.6.30.9.Because I also opened up them.
>>
>>> Most likely there's an skb leak somewhere and the conntrack references
>>> are not released.
>> ----Yes, I think so.But why is that so??kfree_skb function has not been properly invoked when skb leave?

Possibly. You can check the skbuff caches in /proc/slabinfo to see
whether this is the case.

>>>> Environment:
>>>> -----internet--cisco switch (two port bonding)-----linux box(two bridge)----cisco switch(two port bonging)---server
>>>>
>>>> Cisco switch link aggregation，use two port.Linux box have two Independent network bridge.
>>                                           (ge0/1) ---------------(eth0) (eth1)------------(ge1/0/1)
>> ---interface-----cisco switch 1                           linux box                           cisco switch 2--------servers
>>                                           (ge0/2)----------------(eth2) (eth3)------------(ge1/0/1)
>>
>> switch 1:
>> port 0/1 and port 0/2 link aggregation
>>
>> switch 2:
>> port 1/0/1 and port 1/0/2 link aggregation

So you're bridging two ports which are connected to aggregated links?
What is the purpose of doing this?

>> linux config:
>>    eth0, eth1 => bridge0 up, no ip, stp off.
>>    eth2, eth3 => bridge1 up, no ip, stp off.
>>    2.6.30.9
>>    xeon 5420 *8
>>    intel 82575 * 8(version 2.0.6 or linux 2.6.30.9 inside)
>> iptables rule:
>>    no any thing
>>
>> no other config.
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