[ewg] bug 1918 - openmpi broken due to rdma-cm changes

[Steve Wise]

Roland Dreier wrote:
>  > My point, though, is that even with this patch in ofed-1.5.1, we still
>  > have an openmpi/IB/rdmacm regression.  The only way to avoid this
>  > regression without changing openmpi is to disallow _all_ rdma binds to
>  > 127.0.0.1.
>
> Can you identify the source of the regression?  ie what was the change
> that broke things?
>
>   

It is the same commit you sited earlier.  It enables binding rdma cm_ids 
to 127.0.0.1.  Sean's proposed patch on top of that disables this only 
for iwarp devices.


> I'm most concerned that there is another regression in 2.6.33, and if so
> I would like to try and avoid letting that get into the final release.
>