What were you trying to do that didn't work?
QE was attempting to restart the netkvm ethernet adapter on a Win11 using the `.\netkvmco.exe restart 0` command. The expected behavior was that the adapter would restart promptly within a few seconds. However, the restart process takes significantly longer than expected.

Please provide the package NVR for which bug is seen:

• virtio-win-prewhql-0.1-258
• kernel-5.14.0-443.el9.x86_64
• edk2-ovmf-20240214-2.el9.noarch
• qemu-kvm-core-9.0.0-3.el9.x86_64
• swtpm-0.8.0-1.el9.x86_64

How reproducible:
100%

Steps to reproduce
1. Set the Queues of Qemu netdev as a high value (e.g. 10, 20 and 40)
2. Restart the NetKVM Ethernet Adapter:

• Execute the `date` command to check the current system time
• Run the command `.\netkvmco.exe restart 0` to restart the netkvm ethernet adapter
• Execute the `date` command to check the current system time

3. Observe the restart Time

Expected results
The netkvm ethernet adapter should restart promptly within a few seconds.

Actual results
For instance, with queues=40, the restart took about 75 seconds.

Addition notes:
QE will upload all the test snapshots for debugging purposes.