From: David Acker <dacker@roinet.com>
To: James Chapman <jchapman@katalix.com>
Cc: Jeff Garzik <jgarzik@pobox.com>,
"Kok, Auke" <auke-jan.h.kok@intel.com>,
John Ronciak <john.ronciak@intel.com>,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
Milton Miller <miltonm@bga.com>,
netdev@vger.kernel.org, e1000-devel@lists.sourceforge.net,
Scott Feldman <sfeldma@pobox.com>
Subject: Re: [PATCH] Fix e100 on systems that have cache incoherent DMA
Date: Wed, 12 Sep 2007 16:11:21 -0400 [thread overview]
Message-ID: <46E847E9.4010601@roinet.com> (raw)
In-Reply-To: <46E7CDD5.3060306@katalix.com>
James Chapman wrote:
> David Acker wrote:
>> Jeff Garzik wrote:
>>> pktgen outputs for the various cases modified/unmodified[/others?]
>>> would be nice, if you have a spot of time.
>>>
>>> Jeff
>>
>> I am not familiar with pktgen but I seem to have it working for a
>> simple test.
>> I edited the 1-1 example from
>> ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/examples/
>> . The results with and without the patch are below.
>
> It looks like you ran pktgen on the embedded system, which exercised
> only the transmit path. Auke indicated that the lockup was in the RU.
> Have you run pktgen on a test system to fire packets at the embedded
> system at max rate? Also test what happens when you fire packets in both
> directions simultaneously.
>
It appears that running pktgen between my pc and the embedded device at the same time eventually hangs the RU. I will
be looking into this failure in detail and report back when I know more. Thanks for bearing with me on this!
-Ack
next prev parent reply other threads:[~2007-09-12 20:11 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-31 20:54 [PATCH] Fix e100 on systems that have cache incoherent DMA David Acker
2007-09-04 17:02 ` Kok, Auke
2007-09-07 16:31 ` Kok, Auke
2007-09-07 20:41 ` David Acker
2007-09-07 21:03 ` Kok, Auke
2007-09-07 21:18 ` Kok, Auke
2007-09-07 23:24 ` Jeff Garzik
2007-09-11 20:54 ` David Acker
2007-09-12 11:30 ` James Chapman
2007-09-12 20:11 ` David Acker [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-11-02 13:27 David Acker
2007-11-02 16:05 ` Kok, Auke
2007-11-02 16:11 ` Jeff Garzik
2007-11-06 17:01 ` Kok, Auke
2007-11-08 18:17 Auke Kok
2007-11-28 19:12 ` David Acker
2007-11-28 19:21 ` Kok, Auke
2007-11-28 19:26 ` Jeff Garzik
2007-11-28 19:50 ` David Acker
2008-06-18 18:54 ` Anders Grafström
2008-06-18 19:16 ` David Acker
2008-06-19 12:38 ` Anders Grafström
2008-07-01 8:26 ` Andrew Morton
2008-07-01 9:49 ` Jeff Garzik
2008-07-01 18:07 ` Andrew Morton
2008-07-02 17:36 ` Anders Grafström
2008-07-02 17:45 ` Andrew Morton
2008-07-01 21:35 ` David Acker
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