Hey Mike, did you ever have any success figuring out this issue? I am having the same
problem (on CentOS 7) with a custom data acquisition PCI card. It seems like the solution
might have something to do with delaying the start of libvirtd in systemd until the PCI
card (or vfio?) is ready, but I don’t know how to do that. Can anyone else offer
assistance?
My output:
2016-03-29T18:29:26.191010Z qemu-kvm: -device
vfio-pci,host=05:00.0,id=hostdev0,bus=pci.0,addr=0x7: vfio: Error: Failed to setup INTx
fd: Device or resource busy
2016-03-29T18:29:26.289154Z qemu-kvm: -device
vfio-pci,host=05:00.0,id=hostdev0,bus=pci.0,addr=0x7: Device initialization failed.
2016-03-29T18:29:26.289195Z qemu-kvm: -device
vfio-pci,host=05:00.0,id=hostdev0,bus=pci.0,addr=0x7: Device 'vfio-pci' could not
be initialized
2016-03-29 18:29:26.337+0000: shutting down
Thanks,
Randy
<--Original Message-->
Hey all,
I'm getting an error starting a libvirt managed qemu/kvm VM at physical host boot
time, but manually starting it afterwards works fine. This is on a Ubuntu Wily i7-4790 box
running Linux 4.2 and libvirt 1.2.16. There is a legacy (5V) PCI card being passed through
to the VM, the error seems to relate to that.
The error that always appears at boot in `/var/log/libvirt/qemu/test-vm.log` is:
2016-01-11T05:29:28.487935Z qemu-system-x86_64: -device
vfio-pci,host=05:00.0,id=hostdev0,bus=pci.0,addr=0x4: vfio: Error: Failed to setup INTx
fd: Device or resource busy 2016-01-11T05:29:28.488148Z qemu-system-x86_64: -device
vfio-pci,host=05:00.0,id=hostdev0,bus=pci.0,addr=0x4: Device initialization failed
2016-01-11T05:29:28.488169Z qemu-system-x86_64: -device
vfio-pci,host=05:00.0,id=hostdev0,bus=pci.0,addr=0x4: Device 'vfio-pci' could not
be initialized
After the physical machine has completed booting, starting the VM via virsh or
virt-manager works fine.
The card is an old Firewire card. I have blacklisted the firewire modules on the physical
machine so they aren't loaded, but is it possible that the kernel, udev or some other
process still has access to the device when systemd starts the libvirt-bin service?
Any clues greatly appreciated.
Thanks,
//Mike
--
⊨ Michael Gratton, Percept Wrangler.
⚙ <
http://mjog.vee.net/>