Same here:
* Latest proxmox
proxmox-ve: 7.0-2 (running kernel: 5.11.22-4-pve)
pve-manager: 7.0-11 (running version: 7.0-11/63d82f4e)
pve-kernel-5.11: 7.0-7
...
* Running on AMD EPYC
* "stress" and "memtest" ok
* no cluster or ha
* Randomly rebooting without any notices in the log files
Special...