I pulled head of tree for rdma-core and the kernel and rebuilt them and I am now seeing the following warnings from pyverbs which I had not seen before. The tests I expected to run are still running but there seems to be an inconsistency somewhere. <frozen importlib._bootstrap>:219: RuntimeWarning: pyverbs.srq.SRQ size changed, may indicate binary incompatibility. Expected 56 from C header, got 64 from PyObject <frozen importlib._bootstrap>:219: RuntimeWarning: pyverbs.qp.QP size changed, may indicate binary incompatibility. Expected 104 from C header, got 112 from PyObject <frozen importlib._bootstrap>:219: RuntimeWarning: pyverbs.qp.QPEx size changed, may indicate binary incompatibility. Expected 112 from C header, got 120 from PyObject Bob Pearson