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[ts-7000] Re: TS-7260 2.6 lost UDP packets

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Subject: [ts-7000] Re: TS-7260 2.6 lost UDP packets
From: "charliem_1216" <>
Date: Wed, 20 Feb 2008 04:47:49 -0000
--- In  Oliver Martin <> 
wrote:
>
> Hi Charlie,
> 
> charliem_1216 schrieb:
> > Could be a duplex mismatch?  There is a patch on linux-netdev 
[1] that
> > changes ep93xx_eth.c to use phylib and properly tell the MAC 
about
> > full duplex.  I see it's not in 2.6.23; don't know about 2.6.24.
> 
> Thanks, the patch helps a lot! It's still not perfect, but at 
least two 
> orders of magnitude or so more stable.

Good! I'm sure Herbert would appreciate feedback on his patch and 
maybe it would get pushed to mainline sooner (it's still not in 
2.6.25-rc2).

> > 
> > Can you give a short recipe / script to duplicate the problem?
> 
> Basically, testing is done by running the echo server from 
> http://murli.34sp.com/o/ep93xx-eth/echo/ (echo_udp) on the 7260 
and the 
> client (echoclient_udp) on a PC. The client sends requests of 
increasing 
> length (100-60000 bytes) and stops when it doesn't receive a 
reply.
> In parallel, network/CPU load is generated on the 7260 by running 
things 
> like "while true; do find /; done" or "while true; do true; done" 
in a 
> telnet session, and maybe a simple ping -f.
> > 
> > You probably want to post this to linux-netdev list.
> 
> I thought about that, but netdev traffic seems to be almost 
entirely 
> patches (more so than lkml). So I wasn't sure if this problem 
report 
> would be appropriate there.

I think it would, especially if a posted patch (with no other 
feedback to date) helped your problem.  Given a way to duplicate it, 
I bet they can help you fix any remaining issues.  

regards, ..... Charlie

> 
> 
> Oliver
>




 
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