vcpupin will fail when maxvcpus is larger than current vcpu: virsh vcpupin win7 --vcpu 0 --cpulist 5-6 error: Requested operation is not valid: cpu affinity is not supported win7 xml in the command above is like below: ... <vcpu current="3" placement="static">8</vcpu> ... The reason is vcpu[3] and vcpu[4] have zero tids and should not been compared as valid situation in qemuDomainRefreshVcpuInfo(). This issue is introduced by commit 34f7743, which fix recording of vCPU pids for MTTCG. Signed-off-by: Yi Wang <wang.yi59@xxxxxxxxxx> --- v2: stop considering zero TIDs as duplicate. Thanks to Jano. --- src/qemu/qemu_domain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index ac01e86..c70d3f3 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -10708,7 +10708,7 @@ qemuDomainRefreshVcpuInfo(virQEMUDriverPtr driver, } for (j = 0; j < i; j++) { - if (info[i].tid == info[j].tid) { + if (0 != info[i].tid && info[i].tid == info[j].tid) { VIR_DEBUG("vCPU[%zu] PID %llu duplicates vCPU[%zu]", i, (unsigned long long)info[i].tid, j); validTIDs = false; -- 1.8.3.1 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list