[vfio-users] GPU not available for vfio-pci, in use by virtio-blk-pci

[Bradley Davis]

So this error only crops up randomly. I'm not sure what exactly I do, but
it only happens every couple of weeks when I reboot. Currently running
Windows 10 and decided to reboot the VM to apply patches and to get over
into the Inside Preview for the latest build - i was running GM stable. On
reboot, I get strange graphical errors and artifacts. I destroy the VM and
tell it to start again and I get this:

[root at kvmhost1 ~]# virsh start GamingMachine
error: Failed to start domain GamingMachine
error: internal error: early end of file from monitor: possible problem:
2015-09-23T02:19:00.062246Z qemu-system-x86_64: -device
vfio-pci,host=04:00.0,addr=0x0f,addr=0x0f,bus=pci.0,x-vid=0x10DE,x-did=0x11BA,x-ss-vid=0x10DE,x-ss-did=0x0965,x-vga=on:
PCI: slot 15 function 0 not available for vfio-pci, in use by virtio-blk-pci
2015-09-23T02:19:00.062556Z qemu-system-x86_64: -device
vfio-pci,host=04:00.0,addr=0x0f,addr=0x0f,bus=pci.0,x-vid=0x10DE,x-did=0x11BA,x-ss-vid=0x10DE,x-ss-did=0x0965,x-vga=on:
Device 'vfio-pci' could not be initialized

This error doesn't occur with every reboot. Normally I get a good amount of
reboots with my VM for updates and software installs.

The only remedy that I know of currently is to reboot... I'm reading some
other vfio-users threads talking about binding issues and will look more
into them.

Current kernel is: 4.1.2-200.fc22.x86_64

What are your thoughts?

Thanks,
Brad
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