Hit this issue when booting Ubuntu Trusty VM on an Ubuntu host, worked around via editing VM XML by adding this in <cpu> section:
<feature policy='disable' name='avx2'/>
This + destroy->start the VM and it booted fine.
Hit this issue when booting Ubuntu Trusty VM on an Ubuntu host, worked around via editing VM XML by adding this in <cpu> section:
<feature policy='disable' name='avx2'/>
This + destroy->start the VM and it booted fine.