Spurious reboot on 25.10.0

I have upgraded two servers yesterday to 25.10.0. It went well, but this afternoon one of them rebooted for no apparent reason. It never happened before; this server has been in service for 1.5 year.

I have a debug file on hand if it can be helpful.

@Captain_Morgan this is the post in the general thread that you suggested. Let me know how to provide my debug file.

First of all,

Provide the hardware description of each of your systems.

Unless other users are seeing similar issues, then there might be some hardware review/testing that is needed.

If anyone else has the same issue, please add to this thread.

The system that rebooted is as follows:

Hardware

  • Asrock Motherboard H670M Pro RS
  • CPU Intel 12100
  • RAM 64GB DDR5
  • Boot : 2 x WD-RED SATA SSD attached to the motherboard controller
  • Integrated Intel Gbit LAN as main
  • Mellanox Technologies MT27520 Family [ConnectX-3 Pro] with 2 x SFP+, direct connect to a Proxmox
  • H220 6Gbps SAS PCI-E LSI 9205-8i IT Mode with SATA cables
  • 2 x 18TB x18 SATA Hard disks connected to the H220
  • One NVME Samsung SSD 980 PRO 1TB
  • One NVME WD_BLACK SN770 1TB

VDEVs

  • Fast : 2 x mirror with the two NVME
  • hd : 2 x mirror with the two hard disks
  • boot : 2 x mirror with the two SATA

Apps

  • Scrutiny latest version

VM

  • Proxmox Backup Server : 3 threads, 4 GiB RAM

P.S. Since the upgrade the system rebooted once only, no new occurence since.