I had been running an Intel/Nvidia server with 225 days of uptime (personal record) until a power outage today really screwed me up. I had the upgrade to 6.9 ready and waiting on a restart. When I first restarted the server, it booted fine but GPU passthrough for my VM wasn't working properly.
I found on here that 6.9 changes the way we do the passthrough of a primary GPU, namely by removing the 'vfio-pci.ids=1912:0015' section from syslinux.cfg and by checking the box within system tools via the WebGUI.
However, when I made that change, the server tried rebooting and got to a line that included "kernel panic". Weird, I thought, and I rebooted again. Now my boot is hung on "vfio-pci 0000:05:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io_mem:owns=io+mem"
It hangs on this line in all modes, non-GUI, GUI, and safe mode.
Help!