rdma - How do I get error information from Infiniband verbs functions? -


in particular, i'd know why ibv_create_qp fails. when returns null, indicating failed, there way find out problem was?

there isn't lot of information guess.

you start looking @ errno value. might provide clue, although believe errors result in generic einval. if willing step-through libibverbs debugger more information. errors occur inside kernel driver , require investigating relevant kernel modules. maybe device's kernel driver has debugging prints can enabled?


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