Upgraded BIOS as follows: 1. https://www.asrock.com/mb/AMD/Fatal1ty%20AB350%20Gaming-ITXac/index.asp 2. Click Support > BIOS 3. Download Version 5.30 through Global site (ignore "AMD all in 1 VGA driver") 4. Formatted USB as FAT32 5. Copied and unzipped AB350 Gaming-ITXac(5.30)ROM.zip to USB 6. Flashed BIOS as per https://www.asrock.com/support/BIOSIG.asp?cat=BIOS8
$ dmidecode -t bios -q Version: P5.30 Release Date: 12/18/2018 BIOS installed correctly. $ journalctl -b Jan 25 09:38:33 kernel: Command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=16a8e892-ec00-4316-b62d-5b60da84a7fb rw quiet idle=nomwait resume=... Jan 25 09:38:33 kernel: ACPI BIOS Warning (bug): Optional FADT field Pm2ControlBlock has valid Length but zero Address: 0x0000000000000000/0x1> Jan 25 09:38:33 kernel: mtrr: your CPUs had inconsistent variable MTRR settings Jan 25 09:38:33 kernel: ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored Jan 25 09:38:33 kernel: [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) Jan 25 09:38:33 kernel: sp5100-tco sp5100-tco: Watchdog hardware is disabled Jan 25 09:38:33 kernel: ccp 0000:27:00.2: ccp enabled Jan 25 09:38:33 kernel: ccp 0000:27:00.2: psp initialization failed Jan 25 09:38:33 kernel: ccp 0000:27:00.2: enabled Jan 25 09:38:38 kernel: kauditd_printk_skb: 23 callbacks suppressed Since the BIOS was flashed, I assume that "Typical Current Idle" was not set. Splat was caused by idling for ~20 minutes. Will try again with "Typical Current Idle" and, if it hangs again, will provide the dmesg log. Additional hardware: * Chassis: https://www.hdplex.com/hdplex-h5-fanless-computer-case.html * PSU: https://www.hdplex.com/hdplex-internal-400w-ac-dc-adapter-with-active-pfc-and-19vdc-output.html and https://www.hdplex.com/hdplex-400w-hi-fi-dc-atx-power-supply-16v-24v-wide-range-voltage-input.html -- 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
