Issue

Please provide the package NVR for which bug is seen: libvirt-10.5.0-5.el9.x86_64 qemu-kvm-9.0.0-8.el9.x86_64 How reproducible: 100% Steps to reproduce: 1. Prepare a guest with the following xml <interface type="user"> <mac address="52:54:00:49:47:db"/> <model type="virtio"/> <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/> </interface> <channel type="unix"> <source mode="bind" path="/var/lib/libvirt/qemu/guestfwd"/> <target type="guestfwd" address="10.0.2.1" port="4600"/> </channel> 2. Start the guest, and check the qemu cmd line ... -netdev {"type":"user","id":"hostnet0"} -device {"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:49:47:db","bus":"pci.1","addr":"0x0"} ... -chardev socket,id=charchannel0,fd=22,server=on,wait=off -netdev {"type":"user","guestfwd":[{"str":"tcp:10.0.2.1:4600-chardev:charchannel0"}],"id":"channel0"} ... 3. Detach the user interface # virsh detach-interface avocado-vt-vm1 user Interface detached successfully # virsh domiflist avocado-vt-vm1 Interface Type Source Model MAC ------------------------------------------ (No output) 4. Try to migrate the guest # virsh migrate avocado-vt-vm1 qemu+ssh://$target_hostname/system --live --p2p --verbose Migration: [100.00 %]error: internal error: QEMU unexpectedly closed the monitor (vm='avocado-vt-vm1'): 2024-08-27T22:13:21.323269Z qemu-kvm: -device {"driver":"cirrus-vga","id":"video0","bus":"pcie.0","addr":"0x1"}: warning: 'cirrus-vga' is deprecated, please use a different VGA card instead 2024-08-27T22:13:21.326263Z qemu-kvm: warning: netdev channel0 has no peer 2024-08-27T22:13:29.213100Z qemu-kvm: Unknown savevm section or instance 'slirp' 1. Make sure that your current VM setup matches your saved VM setup, including any hotplugged devices 2024-08-27T22:13:37.319876Z qemu-kvm: load of migration failed: Invalid argument Expected result: Migration succeed.

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Resolution

Unresolved