(In reply to T X from comment #498) > Jan 24 17:59:39 kernel: [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported > by HW (0x0)
So this looks like a broken BIOS. > Jan 24 17:21:00 kernel: Hardware name: To Be Filled By O.E.M. To Be > Filled By O.E.M./AB350 Gaming-ITX/ac, BIOS P4.60 04/19/2018 Looking at Asrock's website, there's newer BIOS for your board, AFAICT, so can you update it and rerun the same test? Or what you were doing to cause the splat. Also, please upload full dmesg after you've updated the BIOS. Thx. -- 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
