virsh attach-interface and virsh attach-device takes several seconds to complete

Solution In Progress - Updated -

Issue

  • Using virsh attach-interface on a Red Hat Enterprise Linux 6 KVM host hangs the VM for several seconds
  • Using virsh attach-device on a Red Hat Enterprise Linux 6 KVM host hangs the VM for several seconds

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • qemu-kvm

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