Hmm, that seems odd - but it doesn't have enough to recreate and debug. As irqbalance isn't strictly required you could consider uninstalling or masking it in systemd. But that is only a workaround.
For the sake of going forward I merged the latest irqbalance which should show up soon in 18.04. Could you try if you can reproduce so in e.g. a KVM guest. If so you could redirect the console and maybe even pipe it through something adding timestamps. Sorry I'm not the biggest expert on systemd debugging - maybe there are much better options out there I don't know for shutdown delay analysis. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1729192 Title: Shutdown needs often longer than usual Status in irqbalance package in Ubuntu: New Status in systemd package in Ubuntu: New Bug description: I'm using Ubuntu 18.04 dev with irqbalance 1.1.0-2.3ubuntu1 and for some weeks on shutting down the system often (around 50%-75%) I'm seeing that the irqbalance job needs some seconds to shutdown causing to delay the system shutdown noticeable. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/irqbalance/+bug/1729192/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp