No "processor.max_cstate=1" is not necessary. I'd also suggest to double check that your motherboard bios is up to date. If it persists I'd try with a more recent kernel (I'm using 13.6) because IIRC the rcu options where a little bit different in earlier versions of 4.13.
-- 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
