(In reply to ptheis from comment #29)
> My results, testing some days: There was one freeze without errors in
> journal. The second was also not visible in the logs, but the system
> rebooted and threw a mce hardware error. The system is not stable yet.
How old is your Ryzen? The older ones with the random segfault issue often emitted MCE messages. I don't recall seeing any with my newly replaced Ryzen. Although segfaults are the most common symptom, I wouldn't be surprised if the fault could also trigger a freeze in some way.
(In reply to ptheis from comment #29)
> My results, testing some days: There was one freeze without errors in
> journal. The second was also not visible in the logs, but the system
> rebooted and threw a mce hardware error. The system is not stable yet.
How old is your Ryzen? The older ones with the random segfault issue often emitted MCE messages. I don't recall seeing any with my newly replaced Ryzen. Although segfaults are the most common symptom, I wouldn't be surprised if the fault could also trigger a freeze in some way.