I'm watching this thread since February. My first stable workaround with legacy BIOS-Mode was the kernel parameter rcu_nocbs=0-15 because the BIOS didn't have the "Typical Current Idle" Option.
Systeminfo R7 1700, GA AX370-Gaming K7 with BIOS F23f in legacy mode, PSU Corsair HX750, OS Gentoo Linux Kernel 4.17.4, desktop kde-plasma-5.13.2 no overclocking or tweaking, only using the "Typical Current Idle" Option (it's possible now with F23f) instead "Auto". So I didn't need rcu_nocbs=0-15 furthermore and all works fine - no lockups -- 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
