Certainly something is very wrong with the numbers. Looking at the numbers reported we get 5/13/-17/0 which sums up to 1 which is exactly the refcount complained about. But looking at the individual numbers, the counter for CPU#0 starts with 5 not 0. And just adding up the dev_hold and dev_put calls I underrun down to -4. So it looks a bit like some magic suddenly warps the counter and we release more often than we appear to take the reference and still end up one too high. It is a bit too late to think about it but maybe loopback gets assigned elements from another interface and that count is off by one.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1021471 Title: clone() hang when creating new network namespace (dmesg show unregister_netdevice: waiting for lo to become free. Usage count = 2) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1021471/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
