device: 0.956
graphic: 0.899
performance: 0.896
network: 0.881
PID: 0.800
debug: 0.780
vnc: 0.760
permissions: 0.721
boot: 0.683
socket: 0.667
semantic: 0.638
files: 0.576
other: 0.417
KVM: 0.004

failed to migrate using multifd with multifd-channels larger than 2
Description of problem:
try to using multifd live migration on QEMU v8.0.0 using multifd channels larger than 2, but failed.
Steps to reproduce:
1. start source / dest qemu vm
2. migrate_set_capability multifd on && migrate_set_parameter multifd-channels 8

then live migration will failed