[CentOS] bnx2 losing connectivity

Tue Dec 15 12:02:03 UTC 2009
James Pearson <james-p at moving-picture.com>

nate wrote:
> Hoping someone else has seen this before.
> I have a few dozen Dell R610 systems with CentOS 5.2 that are
> using kernels from 5.3 and 5.4 (2.6.18-128.1.10.el5 & 2.6.18-164.6.1.el5),
> that at random lose layer 2 network connectivity either partially
> or totally. Running tcpdump on the interface reveals only ARP
> broadcasts, no responses. Switch reports no packets being
> received on the interface.

A colleague of mine has seen the exact same issue with Dell R610 systems 
running CentOS 5.x

It looks like this might be the same issue as:


Which seems to suggest disabling MSI - i.e. load the bnx2 module with 

We haven't tried this yet (as we went back to using CentOS 4 on these 
boxes - which works OK)

James Pearson