New Asrock X470 Taichi UEFI 1.50

Hi *,

after getting my new Taichi Board and installing my new System I made a upgrade to the newest UEFI 1.50 I discovered following issues:

WIth WIndows 10 Pro the PC will start and run normally BUT

If I try to boot into my Fedora 28 or try to reinstall Fedora 28 the system freezes during booting with following messages:

sp5100-tco sp5100-tco: Watchdog hardware is disabled



seq 3191 '/devices/pci0000:00/0000:00:07.1/0000:2f:00.2' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3334 '/devices/system/cpu/cpu2' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3333 '/devices/system/cpu/cpu15' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3336 '/devices/system/cpu/cpu4' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3326 '/devices/system/cpu/cpu0' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3340 '/devices/system/cpu/cpu8' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3338 '/devices/system/cpu/cpu6' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3341 '/devices/system/cpu/cpu9' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3339 '/devices/system/cpu/cpu7' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3337 '/devices/system/cpu/cpu5' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3335 '/devices/system/cpu/cpu3' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3327 '/devices/system/cpu/cpu1' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3331 '/devices/system/cpu/cpu13' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3330 '/devices/system/cpu/cpu12' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3329 '/devices/system/cpu/cpu11' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3332 '/devices/system/cpu/cpu14' is taking a long time
Jul 09 18:22:41 earthling.universe systemd-udevd[745]: seq 3328 '/devices/system/cpu/cpu10' is taking a long time
Jul 09 18:23:10 earthling.universe systemd[1]: dev-mapper-fedora\x2dhome.device: Job dev-mapper-fedora\x2dhome.device/start timed out.
Jul 09 18:23:10 earthling.universe systemd[1]: Timed out waiting for device dev-mapper-fedora\x2dhome.device.


Failed to start udev Wait for Complete Device Initialization.
-- Subject: Unit systemd-udev-settle.service has failed
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit systemd-udev-settle.service has failed.



seq 3191 '/devices/pci0000:00/0000:00:07.1/0000:2f:00.2' killed



seq 3340 '/devices/system/cpu/cpu8' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3339 '/devices/system/cpu/cpu7' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3341 '/devices/system/cpu/cpu9' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3327 '/devices/system/cpu/cpu1' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3337 '/devices/system/cpu/cpu5' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3334 '/devices/system/cpu/cpu2' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3333 '/devices/system/cpu/cpu15' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3335 '/devices/system/cpu/cpu3' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3338 '/devices/system/cpu/cpu6' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3336 '/devices/system/cpu/cpu4' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3326 '/devices/system/cpu/cpu0' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3332 '/devices/system/cpu/cpu14' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3329 '/devices/system/cpu/cpu11' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3330 '/devices/system/cpu/cpu12' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3331 '/devices/system/cpu/cpu13' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: seq 3328 '/devices/system/cpu/cpu10' killed
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [776] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [776] failed while handling '/devices/system/cpu/cpu9'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [759] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [759] failed while handling '/devices/system/cpu/cpu3'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [749] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [749] failed while handling '/devices/system/cpu/cpu1'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [750] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [750] failed while handling '/devices/system/cpu/cpu15'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [755] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [755] failed while handling '/devices/system/cpu/cpu6'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [756] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [756] failed while handling '/devices/system/cpu/cpu7'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [758] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [758] failed while handling '/devices/system/cpu/cpu14'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [763] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [763] failed while handling '/devices/system/cpu/cpu0'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [766] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [766] failed while handling '/devices/system/cpu/cpu13'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [752] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [752] failed while handling '/devices/system/cpu/cpu10'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [768] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [768] failed while handling '/devices/system/cpu/cpu12'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [777] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [777] failed while handling '/devices/system/cpu/cpu5'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [779] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [779] failed while handling '/devices/system/cpu/cpu8'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [780] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [780] failed while handling '/devices/system/cpu/cpu11'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [782] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [782] failed while handling '/devices/system/cpu/cpu4'
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [784] terminated by signal 9 (KILL)
Jul 09 18:24:41 earthling.universe systemd-udevd[745]: worker [784] failed while handling '/devices/system/cpu/cpu2'

After downgrading to Stock Bios/UEFI v1.1 everything runs fine.

Is there any support how to use the new Bios/UEFI and use Linux?

Greetings

Tobi