netdev - Re: [PATCH net 0/2] net: marvell: Fix highmem support on non-TSO path

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Message-ID: <54C1832B.9080506@tpi.com>
Date:	Thu, 22 Jan 2015 15:09:31 -0800
From:	Dean Gehnert <deang@....com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
CC:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
	B38611@...escale.com, fabio.estevam@...escale.com
Subject: Re: [PATCH net 0/2] net: marvell: Fix highmem support on non-TSO
 path

On 01/22/2015 03:06 PM, Russell King - ARM Linux wrote:
> On Thu, Jan 22, 2015 at 09:49:10PM +0000, Russell King - ARM Linux wrote:
>> On Thu, Jan 22, 2015 at 01:27:31PM -0800, Dean Gehnert wrote:
>>> Can you can try the SOCAT test on your Dove platform and see if that passes
>>> the non-cache line aligned test case? I think what the SOCAT test does is
>>> take the NFS "variable" out of the equation. My theory is that if there is a
>>> DMA corruption, then hard telling what kinds of problems will occur. It
>>> might be the payload of a file is corrupted, or if the NFS structures are
>>> corrupted, it could manifest itself as a problem in the NFS code.
>> Anyway, I'm running the test now, but I had to change the socat line to:
>>
>> # socat -b$(((1024*10)+1)) -u open:ExpectData.in TCP:192.168.1.212:4000
>>
>> The receiving end is getting:
>>
>> 4a4727232209b85badc1ca25ed4df222  -
>> 4a4727232209b85badc1ca25ed4df222  -
>> 4a4727232209b85badc1ca25ed4df222  -
>> 4a4727232209b85badc1ca25ed4df222  -
>> 4a4727232209b85badc1ca25ed4df222  -
>> ...
> It's been running for about an hour now with no sign of any problem.
>
It should show the problem in the 1st or 2nd iteration and then continue 
after that... I don't think your Dove shows the problem.

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