[ewg] RDS problematic on RC2

[Johann George]

> Oh, and if you're using RDMA - does this happen to be with
> qlogic HCAs?  If so, I just received a patch from Ralph
> Campbell with some fixes to the way we set up out DMA
> mapping.

RDS in OFED 1.3 does not currently work on the QLogic HCAs
due to the way you are setting up DMA mapping.  We already
discovered that and the patch that Ralph sent will hopefully
fix the problem.

The machine in the cluster which we upgraded to RC2 and
subsequently encountered failure contains a Mellanox Lion
Mini DDR HCA.

Johann