Further notekeeping: - 4 dd's (xenial+nohz=off) has survived for half a day, then the instance crashed on something else. - trusty and vivid kernels with nohz=off have survived for a full day without any lockups. lxd on trusty kernel causes a lot of leaked "FREEZED/FREEZING" containers, but that's unrelated and does not happen with the vivid kernel. So it's unclear whether this combination is stable or the lockups are just reduced, or it just was lucky. - trusty kernel without the nohz option locked up a few minutes after reboot, without actually running any test.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1531768 Title: [arm64] lockups when idle if tickless (nohz=on) is used To manage notifications about this bug go to: https://bugs.launchpad.net/auto-package-testing/+bug/1531768/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
