On my Trusty VM with "[x] Copy host CPU configuration" checked in virt- manager, running 'sudo modprobe -r raid6_pq && sudo modprobe raid6_pq' is enough to reproduce the kernel exception in dmesg (though I didn't see it print "Segmentation Fault", so that may be somewhat of a red herring).
Here's /proc/cpuinfo on the guest: http://paste.ubuntu.com/13868715/ And here's /proc/cpuinfo on the hypervisor host: http://paste.ubuntu.com/13868744/ I have a separate issue (which I have not filed, because I haven't triaged, and am not sure I can reproduce yet) that was blocking me from creating a Xenial guest, but I can try again shortly. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1524069 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] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kvm/+bug/1524069/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
