Issue with igb and lagg (was Re: Problem with link aggregation + sshd)

[Giulio Ferro]

On 09/12/2012 10:51 PM, Freddie Cash wrote:
> On Wed, Sep 12, 2012 at 1:48 PM, Jack Vogel <jfvogel at gmail.com> wrote:
>> On Wed, Sep 12, 2012 at 12:40 PM, Freddie Cash <fjwcash at gmail.com> wrote:
>>> Thanks for checking.  I've used lagg(4) with igb, just not on 9.x.
>>>
>>> You're right, it seems to be pointing to the igb(4) driver in 9.x
>>> compared to < 9.0.
>>>
>> How do you determine that since it doesn't happen without lagg?  I've no
>> reports of igb hanging otherwise and its being used extensively.
>
> Well, I did say "seems to".  :)
>
> igb+lagg worked for us on 8.3.  Haven't tried it since moving to 9.0
> and 9-STABLE on those three boxes.
>
> igb+lagg doesn't work for him on 9.0.  Although, I don't recall if
> non-LACP options were tried earlier in this thread, or if it's just
> the LACP mode that's failing.  If one mode works (say failover) and
> LACP mode doesn't, that "seems to" point to lagg.


Sorry, forgot to mention it. I tried both failover and lacp: neither 
worked. The switch is a Dell powerconnect 6248 with ports configured for 
aggragation.

I first tried on a 9.1 prerelease, then on a 9.0 release to have
everything clean. In both ssh, both as server and as client, become
unresponsive and unkillable.

The problem might also lie within ssh/d, but I somehow doubt it.
I haven't tried other network services.