Hi Strahil,
thank you for your emal.
I’ve repeat all steps from the Manual. I think, my problem deals with kernel
rebuild (dracut –force). I’ve repeat again – VM can be started, NVIDIA Card can
be configured.
During Start I can see another errors on the Host:
kernel: [nvidia-vgpu-vfio] b21e49d5-c13c-4695-83b8-212cd2f0830a: vGPU migration
disabled
vdsm[4487]: ERROR Error getting managedvolume connector info: Managed Volume
Helper failed….. No module named
\\\'importlib_resources\\\'\\n\''
But my first problem looks solved.
Regards
Pawel
Von: Strahil Nikolov
Gesendet: Sonntag, 11. Juni 2023 16:05
An: Osadtschy,Pawel IT4 Logistics ; users@ovirt.org
Betreff: Re: [ovirt-users] Cannot start VM with vGPU (NVIDIA)
You mention amd_iommu but you are using Nvidia and I doubt this is the correct
approach.
Have you checked the procedure at:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html-single/setting_up_an_nvidia_gpu_for_a_virtual_machine_in_red_hat_virtualization/index
It seems quite extensive and if your Nvidia supports vGPU, you can give it a
try.
Best Regards,
Strahil Nikolov
Sent from Yahoo Mail for
iPhone<https://mail.onelink.me/107872968?pid=nativeplacement=Global_Acquisition_YMktg_315_Internal_EmailSignature_sub1=Acquisition_sub2=Global_YMktg_sub3=_sub4=10604_sub5=EmailSignature__Static_>
On Sunday, June 11, 2023, 4:32 PM, pawel.osadtschy01--- via Users
mailto:users@ovirt.org>> wrote:
Hi, need a help!
may be the problem is very simple, but I've not found solution:
-oVirt 4.5.4 on RHEL 8.7
-amd_iommu is on on the Host with Nvidia Card A40
I can see my cards in vGPU Settings for Windows VMs (Windows 10 Pro).
Without activation of the vGPU device VM started normally.
With one active vGPU card VM cannot start. Error message on the Host:
Jun 07 13:39:51 depotlsa8ovh1 kernel: [nvidia-vgpu-vfio]
e80ae200-4cea-4213-9e78-ebf0b86a756a: start failed. status: 0x0 Timeout Occured
Jun 07 13:39:51 depotlsa8ovh1 libvirtd[3278]: Kann nicht vom Monitor lesen: Die
Verbindung wurde vom Kommunikationspartner zurückgesetzt
Jun 07 13:39:51 depotlsa8ovh1 libvirtd[3278]: Interner Fehler: qemu
unexpectedly closed the monitor: 2023-06-07T11:39:51.494056Z qemu-kvm: -device
vfio-pci-nohotplug,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/e80ae200-4cea-4213-9e78-ebf0b86a756a,display=on,ramfb=on,bus=pci.7,addr=0x0:
vfio e80ae200-4cea-4213-9e78-ebf0b86a756a: error getting device from group
156: Connection timed out. Verify all devices in group 156 are bound to
vfio- or pci-stub and not already in use.
Looks like libvirtd cannot get any device. Is it problem of Nvidia settings on
the host or Problem of VM settings?
Thank you
Paolo
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