For all with AMD Navi and Error 127... I've compiled my first linux kernel with the updated NAVI patch (from 27-11-2019) for unraid 6.8.0 kernel version 4.19.88. I do not need other patches like pci-reset-quirk or HW support of the 5.x kernels.   It works for me (B450 Board with Ryzen 3600 + Sapphire 5700 XT Pulse) except the Navi audio. Some times I get the following error (after "Force Stop") and still need to reboot the rig: qemu-system-x86_64: vfio: Cannot reset device 0000:09: