I am on Ryzen 2500U Laptop, HP. I am using kernel 4.18.9-200.fc28.x86_64. The zenstates.py script fails when I try to disable C6. Oh well.
I have kernel parameters: idle=nomwait processor.max_cstate=5 I still get lockup. No BIOS settings available on this mavhine. Feel pretty hopeless at the moment. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs