[Bug 1524069] Re: [trusty] 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)

[Andy Whitcroft]

I will note that this has thrown an illegal instruction trap while doing
this:

    [ 522.963634] invalid opcode: 0000 [#1] SMP

So it is likely that dispite offering up the avx2 flags to the guest the
host is not actually providing the instructions?

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Title:
  [trusty] 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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