Bit more digging, I see that the CPU goes into idle either by a single WFI (wait for an interrupt) shallow sleep or a deeper arm_cpuidle_suspend() - the latter is akin to turning off the CPU. I wonder if we're seeing some issues with the wakeup latency taking a long time inside QEMU when the host is loaded, causing rcu sched issues.
-- 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 some time after booting 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
