I can confirm that this still occurs with a clean install of 14.04.2. Adding the specified configuration does indeed fix the problem, but this is not apparently part of the default configuration.
** Changed in: irqbalance (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1321425 Title: irqbalance affinity_hint subset empty in /var/log/syslog To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/irqbalance/+bug/1321425/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs