Sorry for the late answer. We went back to 6.17.13-19-pve, since we still hitting the same problems on newer 7.x as you are.
Upgraded to proxmox 9.2.10 on Sunday September the 6th.
Have had two downtimes of a host because of that since.
Both downtimes occurred during the Proxmox Backup of some other machines which places an extra burden on the physical disks. And in the second case I had to revert to the last Backup because the filesystem was irrecoverably damaged due to the IO-Error.
It might get some more easily reproducible when the fio check from here https://forum.proxmox.com/threads/i...system-xfs-shutdown.184360/page-2#post-858168 is done during some extra stress on the host.
This virtual machine affected is a Debian 13 with a 6.12.107+deb13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.107-1 (2026-08-29) x86_64 GNU/Linux Kernel.
Have had two downtimes of a host because of that since.
Both downtimes occurred during the Proxmox Backup of some other machines which places an extra burden on the physical disks. And in the second case I had to revert to the last Backup because the filesystem was irrecoverably damaged due to the IO-Error.
It might get some more easily reproducible when the fio check from here https://forum.proxmox.com/threads/i...system-xfs-shutdown.184360/page-2#post-858168 is done during some extra stress on the host.
This virtual machine affected is a Debian 13 with a 6.12.107+deb13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.107-1 (2026-08-29) x86_64 GNU/Linux Kernel.