I have similar issues on my DELL R630 server but only on those with extra NIC:s.
In my case it is not triggerd on boot but when I start the openstack neutron agents components that starts configuring the extra nic (Intel 10-Gigabit X540-AT2 rev 01). [ 204.789174] NMI watchdog: Watchdog detected hard LOCKUP on cpu 7 [ 205.193525] NMI watchdog: Watchdog detected hard LOCKUP on cpu 6 [ 205.716981] NMI watchdog: Watchdog detected hard LOCKUP on cpu 3 [ 206.012783] NMI watchdog: Watchdog detected hard LOCKUP on cpu 14 [ 206.313395] NMI watchdog: Watchdog detected hard LOCKUP on cpu 0 [ 207.761181] NMI watchdog: Watchdog detected hard LOCKUP on cpu 9 [ 208.288291] NMI watchdog: Watchdog detected hard LOCKUP on cpu 1 [ 209.190285] NMI watchdog: Watchdog detected hard LOCKUP on cpu 12 [ 209.560277] NMI watchdog: Watchdog detected hard LOCKUP on cpu 8 [ 210.040526] NMI watchdog: Watchdog detected hard LOCKUP on cpu 2 [ 211.555861] NMI watchdog: Watchdog detected hard LOCKUP on cpu 15 [ 216.922401] NMI watchdog: BUG: soft lockup - CPU#4 stuck for 23s! [neutron-rootwra:17362] [ 216.926401] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 23s! [sudo:17410] [ 216.946400] NMI watchdog: BUG: soft lockup - CPU#10 stuck for 23s! [sudo:17389] [ 216.950399] NMI watchdog: BUG: soft lockup - CPU#11 stuck for 23s! [cinder-volume:7662] [ 216.958398] NMI watchdog: BUG: soft lockup - CPU#13 stuck for 23s! [neutron-rootwra:17349] [ 237.065467] NMI watchdog: Watchdog detected hard LOCKUP on cpu 4 [ 239.587762] NMI watchdog: Watchdog detected hard LOCKUP on cpu 10 [ 244.924190] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 23s! [sudo:17410] [ 244.948189] NMI watchdog: BUG: soft lockup - CPU#11 stuck for 23s! [cinder-volume:7662] [ 244.956188] NMI watchdog: BUG: soft lockup - CPU#13 stuck for 23s! [neutron-rootwra:17349] [ 264.237850] NMI watchdog: Watchdog detected hard LOCKUP on cpu 11 [ 265.156735] NMI watchdog: Watchdog detected hard LOCKUP on cpu 5 [ 272.953977] NMI watchdog: BUG: soft lockup - CPU#13 stuck for 23s! [neutron-rootwra:17349] [ 296.597072] NMI watchdog: Watchdog detected hard LOCKUP on cpu 13 It works for me with 109, but I get the kernel lockup with 110. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745349 Title: Hard lockup during boot with linux-image-4.4.0-112-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745349/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
