KVM virsh console error: operation failed: Active console session exists for this domain

When you can not connect to VMs over “virsh conlose” as below, restart libvirt-bin.

# virsh console 8 Connected to domain centos6-vm1-appportal Escape character is ^] error: operation failed: Active console session exists for this domain

After restarting libvirt-bin, you will be able to access to the VM.

# /etc/init.d/libvirt-bin restart * Restarting libvirt management daemon /usr/sbin/libvirtd               [ OK ] # virsh console 8 Connected to domain centos6-vm1 Escape character is ^]