Hi- I've tested this with two kinds of systems: 1. A system with no physical RDMA devices and no start-up scripts to load these modules 2. A system with physical RDMA devices and with the start-up scripts that load xprtrdma/svcrdma In both cases, after doing an "rmmod rpcrdma", I can mount a "proto=rdma" mount or start the NFS server, and the module gets reloaded automatically. I therefore believe it is safe to delete the code in the rdma-core start-up scripts that manually load RPC-related RDMA support. Either the sunrpc.ko module does this, or NFS user space handles it. There's no need for the rdma-core scripting. -- Chuck Lever