(In reply to Borislav Petkov from comment #497) > Folks, just a quick thing: please check whether you have the latest BIOS and > if not, do upgrade it and check if it makes any difference. > > Thx.
Already running latest BIOS (2018/12/19 for ASRock B450 Pro4 and 2018/12/17 for ASUS X470 Pro). I found out that openSUSE Tumbleweed with stock 4.20.0 kernel doesn't appear to freeze. I tried copying suse's kernel and /lib/modules to Xubuntu 18.04LTS, but it didn't seem to help, xubuntu still freezes. Maybe, xubuntu's firmware packages are old? But I could've done something wrong with the transplant procedure :) I'm going to test Xubuntu 18.10 during the weekends, maybe it has newer packages and does not freeze. -- 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