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Date: Mon, 18 Jan 2010 23:08:14 +0100
From: Jarek Poplawski <jarkao2@gmail.com>
To: Michael Breuer <mbreuer@majjas.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>,
       David Miller <davem@davemloft.net>, akpm@linux-foundation.org,
       flyboy@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit()
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On Mon, Jan 18, 2010 at 04:39:24PM -0500, Michael Breuer wrote:
> Some output from tc -s qdisc:
...
> After the conclusion of the test:
> qdisc pfifo_fast 0: dev eth0 root refcnt 2 bands 3 priomap  1 2 2 2
> 1 2 0 0 1 1 1 1 1 1 1 1
>  Sent 244900497 bytes 3416350 pkt (dropped 0, overlimits 0 requeues 0)
>  rate 0bit 0pps backlog 0b 0p requeues 0
> qdisc pfifo_fast 0: dev eth1 root refcnt 2 bands 3 priomap  1 2 2 2
> 1 2 0 0 1 1 1 1 1 1 1 1
>  Sent 564380 bytes 4708 pkt (dropped 0, overlimits 0 requeues 0)
>  rate 0bit 0pps backlog 0b 0p requeues 0

Great!

> 
> 
> During the test, 8.9GB received; 232.9MB sent).
> 
> I also connected a second device through the wifi router. I was able
> to ping that device w/o loss while DHCP packets were being dropped
> to the other connected device.

Could you remind us if the problem is always with this first device?
Btw, I wonder if you could test it skipping the (HP?) switch?

Jarek P.
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