Description of problem:

Version-Release number of selected component (if applicable):
[root@dell-per730-56 perf]# rpm -qa|grep openvs
kernel-kernel-networking-openvswitch-perf-1.0-412.noarch
openvswitch-selinux-extra-policy-1.0-30.el8fdp.noarch
kernel-kernel-networking-openvswitch-common-3.0-61.noarch
openvswitch3.1-3.1.0-17.el8fdp.x86_64
[root@dell-per730-56 perf]# uname -r
4.18.0-372.56.1.el8_6.x86_64

How reproducible:

Steps to Reproduce:
1.build ovs pvp topo
ip tuntap add tap1 mode tap
ip tuntap add tap2 mode tap
ovs-vsctl add-br ovsbr0
ip link set ovsbr0 up
ovs-vsctl add-port ovsbr0 enp4s0f0
ovs-vsctl add-port ovsbr0 enp4s0f1
ovs-vsctl add-port ovsbr0 tap1
ovs-vsctl add-port ovsbr0 tap2
2. define guest as following
virsh define g1.xml
g1.xml
<domain type='kvm'>
<name>g1</name>
<memory unit='KiB'>8388608</memory>
<currentMemory unit='KiB'>8388608</currentMemory>
<memoryBacking>
<hugepages>
<page size='1048576' unit='KiB'/>
</hugepages>
<locked/>
<access mode='shared'/>
</memoryBacking>
<vcpu placement='static'>5</vcpu>
<cputune>
<vcpupin vcpu='0' cpuset='2'/>
<vcpupin vcpu='1' cpuset='26'/>
<vcpupin vcpu='2' cpuset='4'/>
<vcpupin vcpu='3' cpuset='28'/>
<vcpupin vcpu='4' cpuset='6'/>
</cputune>
<numatune>
<memory mode='strict' nodeset='0'/>
</numatune>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='x86_64' machine='q35'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pmu state='off'/>
<vmport state='off'/>
<ioapic driver='qemu'/>
</features>
<cpu mode='host-passthrough' check='none'>
<feature policy='require' name='tsc-deadline'/>
<numa>
<cell id='0' cpus='0-4' memory='8388608' unit='KiB' memAccess='shared'/>
</numa>
</cpu>
<clock offset='utc'>
<timer name='rtc' tickpolicy='catchup'/>
<timer name='pit' tickpolicy='delay'/>
<timer name='hpet' present='no'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='no'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/var/lib/libvirt/images/g1.qcow2'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</disk>
<controller type='usb' index='0' model='none'>
<alias name='usb'/>
</controller>
<controller type='pci' index='0' model='pcie-root'>
<alias name='pcie.0'/>
</controller>
<controller type='pci' index='1' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='1' port='0x10'/>
<alias name='pci.1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</controller>
<controller type='pci' index='2' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='2' port='0x11'/>
<alias name='pci.2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</controller>
<controller type='pci' index='3' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='3' port='0x8'/>
<alias name='pci.3'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</controller>
<controller type='pci' index='4' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='4' port='0x9'/>
<alias name='pci.4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</controller>
<controller type='pci' index='5' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='5' port='0xa'/>
<alias name='pci.5'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</controller>
<controller type='pci' index='6' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='6' port='0xb'/>
<alias name='pci.6'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</controller>
<controller type='sata' index='0'>
<alias name='ide'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:01:02:03'/>
<source bridge='virbr0'/>
<model type='virtio'/>
</interface>
<interface type='ethernet'>
<mac address='00:de:ad:00:00:01'/>
<target dev='tap1'/>
<source bridge='ovsbr0'/>
<model type='virtio'/>
st' queues='2' iommu='on' ats='on'/>
<address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
</interface>
<interface type='ethernet'>
<mac address='00:de:ad:00:00:02'/>
<target dev='tap2'/>
<source bridge='ovsbr0'/>
<model type='virtio'/>
<driver name='vhost' queues='2' iommu='on' ats='on'/>
<address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
</interface>
<serial type='pty'>
<source path='/dev/pts/1'/>
<target type='isa-serial' port='0'>
<model name='isa-serial'/>
</target>
<alias name='serial0'/>
</serial>
<console type='pty' tty='/dev/pts/1'>
<source path='/dev/pts/1'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
</console>
<input type='mouse' bus='ps2'>
<alias name='input0'/>
</input>
<input type='keyboard' bus='ps2'>
<alias name='input1'/>
</input>
<graphics type='vnc' port='5900' autoport='yes' listen='0.0.0.0'>
<listen type='address' address='0.0.0.0'/>
</graphics>
<video>
<model type='cirrus' vram='16384' heads='1' primary='yes'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
</video>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
</memballoon>
<iommu model='intel'>
<driver intremap='on' caching_mode='on' iotlb='on'/>
</iommu>
</devices>
<seclabel type='dynamic' model='selinux' relabel='yes'/>
</domain>

3.start guest
virsh start g1

Actual results:
start guest failed with the first time, and check there is no tap port with "ip a" command.
[root@dell-per730-56 perf]# ovs-vsctl show
773966f2-62d1-456c-9248-8cafdd8bafcc
Bridge ovsbr0
Port tap2
Interface tap2
Port ovsbr0
Interface ovsbr0
type: internal
Port enp4s0f0
Interface enp4s0f0
Port tap1
Interface tap1
Port enp4s0f1
Interface enp4s0f1
ovs_version: "3.1.1"

[root@dell-per730-56 perf]# virsh define g1.xml
Domain 'g1' defined from g1.xml

[root@dell-per730-56 perf]# virsh start g1
error: Failed to start domain 'g1'
error: Unable to create tap device tap1: Invalid argument

[root@dell-per730-56 perf]# ovs-vsctl show
773966f2-62d1-456c-9248-8cafdd8bafcc
Bridge ovsbr0
Port ovsbr0
Interface ovsbr0
type: internal
Port enp4s0f0
Interface enp4s0f0
Port tap2
Interface tap2
error: "could not open network device tap2 (No such device)"
Port enp4s0f1
Interface enp4s0f1
Port tap1
Interface tap1
error: "could not open network device tap1 (No such device)"
ovs_version: "3.1.1"

#And start guest successfully the second time and check the there are the tap ports.
[root@dell-per730-56 perf]# virsh start g1
Domain 'g1' started

[root@dell-per730-56 perf]# ip a
..
68: tap1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovs-system state UNKNOWN group default qlen 1000
link/ether fe:de:ad:00:00:01 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fcde:adff:fe00:1/64 scope link
valid_lft forever preferred_lft forever
69: tap2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovs-system state UNKNOWN group default qlen 1000
link/ether fe:de:ad:00:00:02 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fcde:adff:fe00:2/64 scope link
valid_lft forever preferred_lft forever

Expected results:
Start guest successfully the first time and there are the tap1 and tap2 port.

Additional info: