From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Wise Subject: Re: bug 1918 - openmpi broken due to rdma-cm changes Date: Sun, 07 Feb 2010 11:42:21 -0600 Message-ID: <4B6EFB7D.2000500@opengridcomputing.com> References: <58D723FE08DC6A4398E6596E38F3FA170566DA@XMB-RCD-205.cisco.com> <0D5487526204477AA2ABED06E46768E2@amr.corp.intel.com> <4B6C498F.3060708@opengridcomputing.com> <38B735478FE94F40BBA3E8BFD794B10F@amr.corp.intel.com> <4B6D9948.6040007@opengridcomputing.com> <4B6E15C4.9020703@opengridcomputing.com> <4B6EAA5F.1000208@mellanox.co.il> <4B6EECBE.6020509@opengridcomputing.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ewg-bounces-ZwoEplunGu1OwGhvXhtEPSCwEArCW2h5@public.gmane.org Errors-To: ewg-bounces-ZwoEplunGu1OwGhvXhtEPSCwEArCW2h5@public.gmane.org To: Roland Dreier Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sean Hefty , ewg-G2znmakfqn7U1rindQTSdQ@public.gmane.org List-Id: linux-rdma@vger.kernel.org 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. >