(In reply to Antoine Pitrou from comment #398) > @Daniel what makes you think this bug is fixed? It certainly isn't for me. > I have a ASRock Fatal1ty X370 Gaming X motherboard, a Ryzen 7 1700 CPU, have > updated the motherboard BIOS to its latest version (4.80 with > PinnaclePI-AM4_1.0.0.2 Patch A) and am still getting idle lockups with > kernel 4.15.0-32-generic (Ubuntu 18.04.1 kernel). The workaround for me is > to disable C6 states using the Zenstates.py script (which has the > unfortunate side effect of lowering the max CPU frequency in single-threaded > mode).
Please remember, this is the upstream Linux kernel bug tracker. So, reports should only be for the latest stable releases, which currently is 4.18.3 [1]. Some distributions make it easy to install those. Packages are available for Ubuntu [2]. Please report issues with the heavily patched Ubuntu default Linux kernel to the Ubuntu bug tracker [3]. [1]: https://www.kernel.org/ [2]: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.3/ [3]: https://bugs.launchpad.net/ubuntu/+source/linux/+bugs -- 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