What were you trying to do that didn't work?

Boot a guest with virtio-net-pci nic and  vhost=on, then remove this interface in host, qemu output error messages: qemu-kvm: vhost vring error in virtqueue 1: Invalid argument (22)

Please provide the package NVR for which bug is seen:

qemu-kvm-9.0.0-0.rc1.el9_4.preview.x86_64

kernel-5.14.0-436.el9.x86_64

edk2-ovmf-20240214-1.el9.noarch

How reproducible:

100%

Steps to reproduce

1. Boot guest with virtio-net and vhost=on

-device '{"id": "pcie-root-port-3", "port": 3, "driver": "pcie-root-port", "addr": "0x1.0x3", "bus": "pcie.0", "chassis": 4}' \
-device '{"driver": "virtio-net-pci", "mac": "9a:7e:2a:5d:f6:3b", "id": "id86tDLK", "netdev": "id3QV2P9", "bus": "pcie-root-port-3", "addr": "0x0"}' \
-netdev  '{"id": "id3QV2P9", "type": "tap", "vhost": true, "vhostfd": "16", "fd": "10"}' \

2. Remove this interface in host after guest boot up

[root@host]# ip link delete tap0

3. qemu output error messages:

qemu-kvm: vhost vring error in virtqueue 1: Invalid argument (22)

Expected results

There are no any error messages

Actual results

qemu output error messages: qemu-kvm: vhost vring error in virtqueue 1: Invalid argument (22)

Additional info:

1. Based on the QE debug, it can not reproduced on rhel 8.
2. If setup vhost=off, it can not hit this problem. And e1000e device works well.

3. It should not a regression problem, 9.4. 9.3 and 9.2 are aslo can reproduced this problem.