netdev - Re: Network Receive Problems on NetGearRn104 Armarda370

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Message-ID: <BLU436-SMTP1300DC4BE257863BB775B24D8440@phx.gbl>
Date:	Wed, 23 Sep 2015 19:01:39 +0200
From:	TuxOholic <tuxoholic@...mail.de>
To:	netdev@...r.kernel.org
CC:	thomas.petazzoni@...e-electrons.com
Subject: Re: Network Receive Problems on NetGearRn104 Armarda370

Hi list,
Hello Thomas,

Follow up to [1] from March 2015:

Using a Readynas 102 with mainline kernel 4.2 I still see a bunch of
error messages in dmesg during network transfer:

mvneta d0074000.ethernet eth0: bad rx status 0f830000 (overrun error),
size=1008
mvneta d0074000.ethernet eth0: bad rx status 0f830000 (overrun error),
size=440

The amount of errors have decreased a lot from hundreds in natisbad
kernel 4.0.5 (flooding syslog) down to just a few in my own build of
mainline 4.2. kernel config I used was config-4.0.5.rn102 from [2] ,
mvneta is built into kernel (not module). eth0 link is up continuous at
1000 MB/s , I never see dropped links while these errors occur.

My home LAN consists of gigabit cables (cat 5) and gigabit switches. I
never encounter internal transmission errors other than those with the
RN102 marvell driver.

As Michael Langer has mentioned in [1], 3.17 of natisbad was not
affected, I confirmed that with the same kernel image from [2].

System OS in use is Debian/Jessie, original Marvell u-boot from nand
(September 2013)

Any patches/ideas I could try to get rid of transmission errors completely?

[1] https://www.marc.info/?l=linux-netdev&m=142573659929563
[2] http://natisbad.org/nas-kernels/
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