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



On Thu, 2014-01-30 at 08:31 +0100, Santiago Garcia Mantinan wrote:
> > > 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?
> 
> Well, the server is a HP ProLiant BL480c G1 and has tigon based cards as
> well as the bnx2 ones, if I use the tigon based cards I can download with
> wget at more than 100MB/s but if I use the bnx2 cards they don't even bet to
> 4 MB/s (I did some tests today without vlan tagging and this still happens
> without the vlan overhead). If I look at the interface statistics using
> ifconfig I get things like this:
> 
> eth3      Link encap:Ethernet  HWaddr 00:23:7d:30:9c:e6  
>           inet addr:10.10.50.243  Bcast:10.255.255.255  Mask:255.255.255.0
>           inet6 addr: fe80::223:7dff:fe30:9ce6/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:36857 errors:804 dropped:0 overruns:0 frame:804
>           TX packets:14702 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000 
>           RX bytes:53602773 (51.1 MiB)  TX bytes:1056006 (1.0 MiB)
>           Interrupt:17 Memory:fa000000-fa012800 
[...]

This is on the bnx2 interface?

Please use 'ethtool -S eth3' to get more detailed statistics, and
'ethtool -t eth3' to run a self-test (note this will break the link
temporarily), and send the output of these.

Ben.

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

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