I created a perf timechart (attached) to see if that would illuminate the problem. This is taken from the installer environment for the first 30s.
In this boot, the soft lockup occurred on CPU 11: [ 32.815351] NMI watchdog: BUG: soft lockup - CPU#11 stuck for 22s! [swapper/11:0] This blocked period appears to be visible from the chart, but it isn't clear to me what it was executing at the time. ** Attachment added: "perf timechart of first 30s" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574814/+attachment/4660275/+files/output.svg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574814 Title: ThunderX: soft lockup in cursor_timer_handler() Edit To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574814/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
