From: Tony Battersby <tonyb@cybernetics.com>
To: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: netdev@vger.kernel.org
Subject: Re: BUG: sky2: hw csum failure with dual-port copper NIC on SMP
Date: Wed, 14 Nov 2007 10:37:10 -0500 [thread overview]
Message-ID: <473B1626.20507@cybernetics.com> (raw)
In-Reply-To: <20071113152755.4d55c86a@freepuppy.rosehill>
>> Do you want the test program I am using? It is a pretty basic
>> send()/recv() program, ~650 lines of C.
>>
>> Tony
>>
>>
>
> Not really, iperf drives the problem fine.
>
>
Thanks for the tip; I hadn't tried iperf before today. I can reproduce
the problem with "iperf -s" on the system with the dual-port SysKonnect
NIC and "iperf -c host -t 120" on the two Intel PRO/1000 (e1000 driver)
client systems. The problem doesn't seem to happen the other way around
though (running the server on the two Intel PRO/1000 systems and two
iperf clients on the SysKonnect system). So the problem appears to be
triggered by recv() on the SysKonnect side but not send().
Tony
prev parent reply other threads:[~2007-11-14 15:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-13 17:51 BUG: sky2: hw csum failure with dual-port copper NIC on SMP Tony Battersby
2007-11-13 22:14 ` Stephen Hemminger
2007-11-13 22:57 ` Tony Battersby
2007-11-13 23:27 ` Stephen Hemminger
2007-11-14 15:37 ` Tony Battersby [this message]
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