PCIe Grafix passthrough error - Failed to mmap

[DraycD]

hi, have anyone a idea how to fix this issue:

root@server:~# qm start 100
kvm: -device vfio-pci,host=01:00.0,id=hostpci0,bus=ich9-pcie-port-1,addr=0x0: Failed to mmap 0000:01:00.0 BAR 3. Performance may be slow
root@server:~#

what can i do?

 

[Alwin]

Don't do double postings, this only confuses people and only puts more trouble on the people that try to help.
https://forum.proxmox.com/threads/pcie-graka-durchreichen-failed-to-mmap.44321/