On 8/5/19 1:25 PM, 马昊骢 Ianmalcolm Ma wrote: > Description of problem: > libvirt 3.9 on CentOS Linux release 7.4.1708 (kernel 3.10.0-693.21.1.el7.x86_64) on Qemu version 2.10.0 I vaguely recall a bug like this, but I don't know any more details. Then again, libvirt-3.9.0 is 2 years old. So I suggest try to upgrade libvirt and see if it helps. Alternatively, you may try to run git bisect and find the commit that fixed the problem. Michal _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users