Ok, so I think this is not exactly a bug, maybe a usability issue upstream?
Note also that the error message now reported ("Cannot read node mask for device", sysfs_node_read returning -1) is different than before ("Kernel does not know node mask for device", sysfs_node_read returning -2) In any case, you've told numactl to use --cpunodebind=<node of a network device>, but that <node of a network device> has no CPUs, so numactl can't bind to it? In the code, I believe numprocnode to be 0 (as node 0 is the highest node with CPUs) and if (num >= numa_num_task_nodes()) return -1; is probably being tripped in sysfs_node_read. As with all things numactl, it needs some love to be more user-friendly. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1638515 Title: Ubuntu 16.04.1: numactl failed when trying to specify node with netdev:dev To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/numactl/+bug/1638515/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs