Good morning,
So I unfortunately had to re-open this issue. I thought this was fixed with a new PSU. However the reboots did show up again some time later. I upgraded XCP-NG meanwhile to the latest stable 8.3.0 and ran all the patches. I was curious if it would still show this behaviour afterwards. I also tested running different VMs on that machine, and after some time I am fairly confident to say now that running one particular VM seems to cause these sudden reboots of the host:
Its a VM with 2 CPUs, 8 GiB of RAM, running Ubuntu 22.04 with MongoDB. It has a 20 GiB OS partition and, possibly the relevant clue; a 20TB raw disk passed through into the VM (15 TiB partition).
I did a lot of testing the last weeks without that VM (MongoDB) writing to that raw disk, and had no reboots. Yesterday I configured that MongoDB VM to continously add data again to that raw disk and since I've had 2 reboots in just a single day again.
The good news is that I should be able to replicate the issue now. Could someone give me pointers what I could still try to figure out what is exactly going wrong/how I can go about fixing this?
Thanks!
