Re: bug 1918 - openmpi broken due to rdma-cm changes

Steve Wise
2010-02-07T17:42:21Z

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.
>