I’m trying to passthrough RTX 3060 to instance (virtual machine) under KVM (qemu). Host is ubuntu20.04. VM is Win10. Host bios config is : intel_iommu=on iommu=pt vfio-pci.ids=10de:2487,10de:228b vfio-pci.disable_idle_d3=1 Qemu command line is: -device vfio-pci,host=0000:18:00.0,id=hostdev0,bus…

I have two 3060 cards on my host, named 0000:18:00.0 and 0000:51:00.0. So the kernel log with 0000:51:00.0 is the same as 0000:18:00.0

[image] Longliu: rev ff on the host from lspci tells the gpus are turned off. Might be a power issue.

Thanks for reply. “Might be a power issue.” How can I confirm it? Only when VM power on, power off or reboot many times, this problem occurred. If VM’s status haven’t change, it’s always normal.

IDK, it’s a difficult setup to get any info from. Only the Windows eventlog might contain something but the nvidia windows driver doesn’t have good logging.

When VM is centos, the problem also occurred. Is there any way to skip it？

Then please use the centos vm and run nvidia-bug-report.sh as root after the issue occured and attach the resulting nvidia-bug-report.log.gz file to your post.

Sorry for the late reply. Here is my log, see attachment. Host : ubunt 20.04 VM : centos 8 When RTX3060 lost , I collected log on host. nvidia-bug-report.log (312.9 KB)

Hi,sir,could you give me a hand again? Have a look about my log. Besides, soft reboot host can return to normal. So I wonder if there is a way to restore RTX3060 after the issue occured. I tried rescan, but it doesn’t work. Now I’m looking for power reset method about RTX3060 pcie device.

That looks like a log from the host, please attach one from the centos vm.

RTX 3060 PCI passthrough to guest under KVM（qemu）

Graphics / Linux Linux

tytanick August 1, 2025, 2:21pm 20

Nope, and i have created also my topics and filled bug report:

talking to proxmox and nvidia support. Also trying Asrock to get onboard but no luck reaching them.

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RTX 3060 PCI passthrough to guest under KVM（qemu）

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