Seeing this as well. The system runs freeipa-client/sssd. If I remove sssd from the bootstrap the node does not lock up. I captured an strace showing the sssd startup is the last thing that happens before the 100% CPU and lock up.
** Attachment added: "sssd-startup.txt" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1746806/+attachment/5047106/+files/sssd-startup.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1746806 Title: sssd appears to crash AWS c5 and m5 instances, cause 100% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/1746806/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
