9.2 ixgbe tx queue hang

[Christopher Forgeron]

Fair enough.

Have you tried disabling tso on the ix's ? That does fix the problem for
me, however there is a performance penalty to be paid.

I'm now regressing through the ixgbe drivers - I see there's been changes
to how the queues are drained between 9.1 - 10.0, will see if the older
ixgbe 2.4.8 works under 10.0


On Fri, Mar 21, 2014 at 1:40 PM, Markus Gebert
<markus.gebert at hostpoint.ch>wrote:

>
> On 21.03.2014, at 15:49, Christopher Forgeron <csforgeron at gmail.com>
> wrote:
>
> > However, if you can make  a spare tester of the same hardware, that's
> > perfect - And you can generate all the load you need with benchmark
> > software like iometer, large NFS copies, or perhaps a small replica of
> your
> > network. Synthetic load is easier to control, and thus easier to
> reproduce
> > the issue and speed testing.  Heck, you may be able to do it all by
> looping
> > through your two ix adapters and never using an external client.
> >
> > It's a bit of a pain to setup, but it's worth the effort imo.
>
> The main problem is, that all the affected systems are blades which are
> only connected 1gig. I think that's the main reason we have trouble
> reproducing the problem and I cannot change that, because we simply lack
> the parts to produce any kind of 10gig connection between blades. So I will
> postpone this idea, especially since our problems seem very similar again.
> 9.2 or 10.0 does not seem to matter, at least for now.
>
>
> Markus
>
>