Bug#737023: BCM5708 with bnx2 driver shows lots of errors on packets.
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.
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).
On the setups I did right now I'm using VLAN tagging, I don't know if that
makes any difference, I'll try to run more tests with and without this.
The systems run Debian 7.3 and the kernels I tried were:
linux-image-3.11-2-amd64 3.11.8-1
linux-image-3.12-1-amd64 3.12.8-1
linux-image-3.2.0-4-amd64 3.2.51-1
Don't know what else to add, if you feel I'm missing something just let me
know. I removed the system information at the end as I'm not writing from
the servers having the problem.
Regards.
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