entire system froze […] when using kernel version 5.4.x … never with v4.19.x […] I can no longer reproduce this with the latest 5.4 kernel on the T430.
Well, it took longer… but it’s still happening. Ran the salt-based update while also shutting down a large HVM. Then it happened: total freeze incl. mouse … everything. There is nothing in journalctl. Just “— reboot —”
Switching back to 4.19 kernel.