[Openstack-operators] Live-migration CPU doesn't have compatibility

Mohammed Naser mnaser at vexxhost.com
Wed Oct 26 15:45:33 UTC 2016


The VMs have to be restarted so that the libvirt config is updated
with the new CPU model.

Good luck!

On Wed, Oct 26, 2016 at 8:07 AM, William Josefsson
<william.josefson at gmail.com> wrote:
> Hi list,
>
> I'm facing issues on Liberty/CentOS7 doing live migrations between to
> hosts. The hosts are Haswell and Broadwell. However, there is not
> feature specific running on my VMs
>
> Haswell -> Broadwell works
> Broadwell -> Haswell fails with the error below.
>
>
> I have on both hosts configured
> [libvirt]
> cpu_mode=none
>
> and restarted openstack-nova-compute on hosts, however that didn't
> help, with the same error. there gotta be a way of ignoring this
> check? pls advice. thx will
>
>
>
> 2016-10-26 19:36:29.025 1438627 INFO nova.virt.libvirt.driver
> [req-XXXX] Instance launched has CPU info: {"vendor": "Intel",
> "model": "Broadwell", "arch": "x86_64", "features": ["smap", "avx",
> "clflush", "sep", "rtm", "vme", "dtes64", "invpcid", "tsc",
> "fsgsbase", "xsave", "pge", "vmx", "erms", "xtpr", "cmov", "hle",
> "smep", "ssse3", "est", "pat", "monitor", "smx", "pbe", "lm", "msr",
> "adx", "3dnowprefetch", "nx", "fxsr", "syscall", "tm", "sse4.1",
> "pae", "sse4.2", "pclmuldq", "acpi", "fma", "tsc-deadline", "mmx",
> "osxsave", "cx8", "mce", "de", "tm2", "ht", "dca", "lahf_lm", "abm",
> "rdseed", "popcnt", "mca", "pdpe1gb", "apic", "sse", "f16c", "pse",
> "ds", "invtsc", "pni", "rdtscp", "avx2", "aes", "sse2", "ss",
> "ds_cpl", "bmi1", "bmi2", "pcid", "fpu", "cx16", "pse36", "mtrr",
> "movbe", "pdcm", "rdrand", "x2apic"], "topology": {"cores": 10,
> "cells": 2, "threads": 2, "sockets": 1}}
> 2016-10-26 19:36:29.028 1438627 ERROR nova.virt.libvirt.driver
> [req-XXXX] CPU doesn't have compatibility.
>
> 0
>
> Refer to http://libvirt.org/html/libvirt-libvirt-host.html#virCPUCompareResult
> 2016-10-26 19:36:29.057 1438627 ERROR oslo_messaging.rpc.dispatcher
> [req-XXXX] Exception during message handling: Unacceptable CPU info:
> CPU doesn't have compatibility.
>
> _______________________________________________
> OpenStack-operators mailing list
> OpenStack-operators at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators



-- 
Mohammed Naser — vexxhost
-----------------------------------------------------
D. 514-316-8872
D. 800-910-1726 ext. 200
E. mnaser at vexxhost.com
W. http://vexxhost.com



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