[openib-general] regression in ofed 1.2

[Sean Hefty]

> I think librdmacm commit 1fd83b0bbbfc7fadba45390b98d5f9c944b42bdc broke
> iwarp usermode.  I'm debugging now, but basically the change in
> rdma_create_qp() to call into the kernel to setup the qp init attributes
> doesn't work for iwarp because the iwcm hasn't been created at this
> point.  So we fall off a NULL ptr in iw_cm_init_qp_attr().  I'm working
> up a fix for this because I think the iw_cm_id _should_ be created at
> the time the addr and/or route is resolved.  But it isn't create until
> rdma_connect() is issued.  Stay tuned.

There's also an issue mixing the newer librdamcm with older kernels that leads 
to a kernel crash.  This is due to a bug in the kernel code that's now exposed. 
  I'm working on a work-around in the librdmacm to avoid causing this crash.

- Sean