I have an Machine that crashes periodically. When I recreated the issue I found that the machine fails with the error AHCI controller unavailable! (full errors in the screenshot).
I have an AMD Ryzen 5 1600 CPU with a GA-A320M-H motherboard with 1 NVME drive (boot drive) and 6 regular HDD in 2 software raids.
Here is the screenshot of the error:
Full errors screenshot
Also here is a paste with the full Machine details:
compound issue of an bad HDD with a ryzen c6 state bug.
As soon as I disconnected the bad HDD I started to get:
BUG: soft lockup - CPU#12 stuck for 23s!
here’s the bug report on the ryzen c6 state bug issue: