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CPU: AMD Ryzen 5 2400G / AMD Ryzen 3 2200G
Version: Ubuntu 18.04.1 Desktop (AMD64)
Kernel: 4.15.0-43 generic
Mainboard: ASUS Prime X370-Pro (4207), ASRock B450 Pro4 (1.80), MSI B350
Tomahawk (7A34v1K), Gigabyte GA-AB350M-Gaming3 (F24c)
Detailed information:
AMD AGESA version "PinnaclePI-AM4 1.0.0.6" based firmware is released by many
major mainboard manufacturers lately.
However, this 1.0.0.6 based firmware with Raven Ridge processors (2200G, 2400G
and more) cause system hangs on boot if a system is running 4.15.0 kernel.
If install kernel version 4.18.0-13-generic from "linux-image-generic-
hwe-18.04-edge" has no issue.
Here is boot messages output (dumped via serial port and truncated):
[ 4.385021] [drm] ring test on 5 succeeded in 3 usecs
[ 4.385030] [drm] ring test on 6 succeeded in 2 usecs
[ 4.385035] [drm] ring test on 7 succeeded in 1 usecs
[ 4.385044] [drm] ring test on 8 succeeded in 2 usecs
[ 4.385090] [drm] ring test on 10 succeeded in 2 usecs
[ 5.406001] clocksource: timekeeping watchdog on CPU2: Marking clocksource
'tsc' as unstable because the skew is too large:
[ 5.406002] clocksource: 'hpet' wd_now: 5152d87
wd_last: 40b14df mask: ffffffff
[ 5.406004] clocksource: 'tsc' cs_now: f4c92bc9d
cs_last: ebf5adbce mask: ffffffffffffffff
[ 5.406006] tsc: Marking TSC unstable due to clocksource watchdog
[ 5.406014] TSC found unstable after boot, most likely due to broken BIOS.
Use 'tsc=unstable'.
[ 5.406015] sched_clock: Marking unstable (5406009219, 0)<-(5548358599,
-142345214)
[ 7.906021] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 9.156104] [drm:amdgpu_ring_insert_nop [amdgpu]] *ERROR* amdgpu: writing
more dwords to the ring than expected!
[ 11.656035] ata2.00: ATA-8: TOSHIBA DT01ACA200, MX4OABB0, max UDMA/133
[ 32.204004] watchdog: BUG: soft lockup - CPU#2 stuck for 21s!
[kworker/2:1:60]
[ 32.204005] Modules linked in: hid_logitech_hidpp hid_logitech_dj usbhid hid
amdkfd amd_iommu_v2 amdgpu(+) chash i2c_algo_bit ttm drm_kms_helper syscopyarea
sysfillrect uas sysimgblt fb_sys_fops drm r8169 usb_storage i2c_piix4 mii ahci
libahci wmi video gpio_a
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amdgpu bot-comment
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AMD AGESA PinnaclePI-AM4_1.0.0.6 causes amdgpu hang on boot
https://bugs.launchpad.net/bugs/1809934
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