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Bug#737023: BCM5708 with bnx2 driver shows lots of errors on packets.



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On Wed, 2014-01-29 at 13:52 +0100, Santiago Garcia Mantinan wrote:
> Package: linux-latest
> Severity: important
> Tags: upstream
> 
> Hi!
> 
> I have wheezy installed on several servers wich have a BCM5708 based NIC,
> which uses the bnx2 driver and I'm seeing a lot of errors on the network RX
> packets, this happens wether the machine runs current 3.2 stable kernel or
> 3.12 unstable one, and with firmware-bnx2 coming from stable and unstable.

How and where are you detecting this?

> Searching on google didn't show any solution on this, but I found a couple
> of discussions showing the same kind of errors:
> 
> http://slashzeroconf.wordpress.com/2008/04/17/broadcom-netxtreme-ii-bcm5708-bnx2-ip-checksum-error/
> http://h30499.www3.hp.com/t5/Networking/bnx2-ip-checksum-error/td-p/4119430
>
> These are posts from 2008, however I'm still seeing this right now with
> current kernels and firmware.
> 
> I've tried to run these commands:
> ethtool -K eth0 rx off
> ethtool -K eth0 tx off
> ethtool -K eth0 tso off
> but that didn't make any change on the behaviour.
> 
> For my tests I'm running a ping which is loosing packets ranging from 12% to
> 60% (I suppose that this depends on how busy the NIC is).
[...]

Have you tried replacing the cable?

Ben.

-- 
Ben Hutchings
It is a miracle that curiosity survives formal education. - Albert Einstein

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