Bug 2067118

QE bot(pre verify): Set 'Verified:Tested,SanityOnly' as gating/tier1 test pass.

Passed on

Red Hat Enterprise Linux release 8.7 Beta (Ootpa)
4.18.0-378.el8.x86_64
qemu-kvm-6.2.0-10.module+el8.7.0+14901+eadd11c6.x86_64
seabios-bin-1.15.0-1.module+el8.6.0+13725+61ae1949.noarch


steps:
1.Create images
 qemu-img create -f qcow2 /home/kvm_autotest_root/images/stg1.qcow2 11G
 qemu-img create -f qcow2 /home/kvm_autotest_root/images/stg2.qcow2 12G

2.boot VM and enable iothread
/usr/libexec/qemu-kvm \
    -name 'avocado-vt-vm1'  \
    -sandbox on  \
    -machine q35 \
    -device pcie-root-port,id=pcie-root-port-0,multifunction=on,bus=pcie.0,addr=0x1,chassis=1 \
    -device pcie-pci-bridge,id=pcie-pci-bridge-0,addr=0x0,bus=pcie-root-port-0  \
    -nodefaults \
    -device VGA,bus=pcie.0,addr=0x2 \
    -m 8G \
    -smp 10,maxcpus=10,cores=5,threads=1,dies=1,sockets=2  \
    -cpu 'Cascadelake-Server-noTSX',+kvm_pv_unhalt \
    \
    -device pcie-root-port,id=pcie-root-port-1,port=0x1,addr=0x1.0x1,bus=pcie.0,chassis=2 \
    -device qemu-xhci,id=usb1,bus=pcie-root-port-1,addr=0x0 \
    -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 \
    -object iothread,id=iothread0 \
    -object iothread,id=iothread1 \
    -object throttle-group,x-iops-total=40,id=group1 \
    -object throttle-group,x-iops-total=50,id=group2 \
    -device pcie-root-port,id=pcie-root-port-2,port=0x2,addr=0x1.0x2,bus=pcie.0,chassis=3 \
    -device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pcie-root-port-2,addr=0x0,iothread=iothread0 \
    -blockdev node-name=file_image1,driver=file,auto-read-only=on,discard=unmap,aio=threads,filename=/home/kvm_autotest_root/images/rhel900-64-virtio-scsi.qcow2,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=drive_image1,driver=qcow2,read-only=off,cache.direct=on,cache.no-flush=off,file=file_image1 \
    -device scsi-hd,id=image1,drive=drive_image1,write-cache=on \
    -blockdev node-name=file_stg1,driver=file,auto-read-only=on,discard=unmap,aio=threads,filename=/home/kvm_autotest_root/images/stg1.qcow2,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=qcow2_stg1,driver=qcow2,file=file_stg1,read-only=off,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=drive_stg1,driver=throttle,throttle-group=group1,file=qcow2_stg1 \
    -device scsi-hd,id=stg1,drive=drive_stg1,write-cache=on,serial=TARGET_DISK1 \
    -blockdev node-name=file_stg2,driver=file,auto-read-only=on,discard=unmap,aio=threads,filename=/home/kvm_autotest_root/images/stg2.qcow2,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=qcow2_stg2,driver=qcow2,file=file_stg2,read-only=off,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=drive_stg2,driver=throttle,throttle-group=group1,file=qcow2_stg2 \
    -device scsi-hd,id=stg2,drive=drive_stg2,write-cache=on,serial=TARGET_DISK2 \
    -device pcie-root-port,id=pcie-root-port-3,port=0x3,addr=0x1.0x3,bus=pcie.0,chassis=4 \
    -device virtio-net-pci,mac=9a:5c:50:fc:6e:9d,id=idsubcb0,netdev=idJyDQVf,bus=pcie-root-port-3,addr=0x0  \
    -netdev tap,id=idJyDQVf,vhost=on  \
    -vnc :5  \
    -monitor stdio \
    -qmp tcp:0:5955,server,nowait  \
    -rtc base=utc,clock=host,driftfix=slew  \
    -boot menu=off,order=cdn,once=c,strict=off \
    -enable-kvm \
    -device pcie-root-port,id=pcie_extra_root_port_0,multifunction=on,bus=pcie.0,addr=0x3,chassis=5

3.execute blockdev-reopen to change different throttle group
{"execute": "qmp_capabilities", "id": "zAbD4B7e"}
{"execute": "blockdev-reopen", "arguments": {"options": [{"driver": "throttle", "node-name": "drive_stg2", "file": "qcow2_stg2", "throttle-group": "group2"}]}, "id": "05L43QcB"}

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Low: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2022:7472