> I'm again a little puzzled what can the gen2 server do wrong in a RDMA
 > read on a PowerPC server  when it can do the same operation a x86
 > server?

Do you have any endian conversion bugs?

 >    wr.wr.rdma.rkey        = ntohl (_remoteBufferInfo->sgList[0].lkey);

The R_Key you use should be the remote side's R_Key, not the L_Key
(_local_ key) that it has.  This doesn't matter for HCAs where they
are the same, but it's better to do things correctly...

 - R.

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