Verified that the problem is resolved using the following test case on DGX H100 running 6.8.0-1020-nvidia. Guest boot time is around 5 minutes as expected.
$ sudo virt-install --connect qemu:///system -v --name gpu-pt-test \ --memory 16384 --vcpus 16 --cpu host --cdrom \ /ubuntu-24.04.1-live-server-amd64.iso --os-variant ubuntu24.04 \ --disk size=512 -w bridge=virbr0 --graphics none \ --console pty,target.type=virtio \ --hostdev pci_0000_1b_00_0 --hostdev pci_0000_43_00_0 \ --hostdev pci_0000_52_00_0 --hostdev pci_0000_61_00_0 \ --hostdev pci_0000_9d_00_0 --hostdev pci_0000_d1_00_0 \ --hostdev pci_0000_df_00_0 --hostdev pci_0000_c3_00_0 ** Tags removed: verification-needed-noble-linux-nvidia ** Tags added: verification-done-noble-linux-nvidia -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2089306 Title: vfio_pci soft lockup on VM start while using PCIe passthrough To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2089306/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
