linux-kernel - Re: [PATCH] af_packet: Don't use skb after dev_queue

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Date:	Thu, 21 Jan 2010 14:48:57 -0500
From:	Michael Breuer <mbreuer@...jas.com>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	flyboy@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit()

On 1/19/2010 3:41 AM, Jarek Poplawski wrote:
> On Tue, Jan 19, 2010 at 12:46:24AM -0500, Michael Breuer wrote:
>    
>> So net-net, as far as my TX packet loss issue, sky2 is in the clear. If
>> something on the linux side should be informing the switch about
>> something then there may still be an issue. If the wifi router should be
>> doing something differently, then it's unfortunately likely a 2.4.37
>> kernel issue (That's what dd-wrt is using).
>>      
> IMHO until there is no proof from a sniffer or some regs dumps the
> switch and the router are more suspicious than your NIC or linux box.
> Then debugging these other things isn't so much interesting from my
> POV ;-)
>
> Anyway, if you only want to get it working (instead of debugging),
> it seems you might try moving the dhcp server to the router or maybe
> even using two separate servers with their pools - unless I missed
> something in your config.
>
> Jarek P.
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>    
Postscript: HP has confirmed that the 1400-8g switch doesn't work, 
"well," in a mixed 100Mb/1000Mb environment, and is dropping DHCP packets.
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