in 18.04 ga-kenrel, the mellanox nic PMD would fail. after manually load ib_uverbs, then it works fine.
2019-12-02T15:49:57.243Z|00306|netdev|WARN|dpdk-360bbd6: could not set configuration (Invalid argument) 2019-12-02T15:49:57.262Z|00307|dpdk|INFO|EAL: PCI device 0000:3b:00.0 on NUMA socket 0 2019-12-02T15:49:57.262Z|00308|dpdk|INFO|EAL: probe driver: 15b3:1015 net_mlx5 2019-12-02T15:49:57.262Z|00309|dpdk|ERR|net_mlx5: cannot list devices, is ib_uverbs loaded? 2019-12-02T15:49:57.262Z|00310|dpdk|ERR|EAL: Driver cannot attach the device (0000:3b:00.0) In 18.04.3 hwe-kernel, the ib_uverbs is depened by ib_core which can auto load. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1862723 Title: 18.04 can't auto load ub_iverbs (18.04.3 hwe can) for Mellanox PMD nics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1862723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs