[CentOS] bnx2 losing connectivity

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


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:

<https://bugzilla.redhat.com/show_bug.cgi?id=520888>

Which seems to suggest disabling MSI - i.e. load the bnx2 module with 
"disable_msi=1"

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

James Pearson


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