[Bug 1524069] Re: [Xenial] KVM trusty guest 3.13.0-68 raid6-pq panic in raid6_avx21_gen_syndrome() while probing grub devices [was: Xenial KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel exception]

[Mike Pontillo]

@Serge, A workaround for me is to use "hypervisor default" in  virt-
manager. I'm not sure what the equivalent is in virt-install, but maybe
using --cpu=host-model-only would be a workaround?

>From the man page:

               Expose the host CPUs configuration to the guest. This enables the guest to take advantage of many
               of the host CPUs features (better performance), but may cause issues if migrating the guest to a
               host without an identical CPU.

           --cpu host-model-only
               Expose the nearest host CPU model configuration to the guest.  It is the best CPU which can be
               used for a guest on any of the hosts.

           Use --cpu=? to see a list of all available sub options. Complete details at
           <http://libvirt.org/formatdomain.html#elementsCPU>

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Title:
  [Xenial] KVM trusty guest 3.13.0-68 raid6-pq panic in
  raid6_avx21_gen_syndrome() while probing grub devices [was: Xenial
  KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel
  exception]

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