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[Xen-devel] Explicit cpuid may be incompatible with vixen

  • To: "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>
  • From: Sarah Newman <srn@xxxxxxxxx>
  • Date: Sat, 13 Jan 2018 21:55:47 -0800
  • Delivery-date: Sun, 14 Jan 2018 05:56:01 +0000
  • Dkim-filter: OpenDKIM Filter v2.11.0 mail.prgmr.com 5EDF928C008
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

We had an experience where vixen would crash with

(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) [error_code=0000]
(XEN) ****************************************
(XEN) Reboot in five seconds...

when cpuid was set to:

cpuid = [ "0x00000001:ecx=xxxxxxxxx0xxxxxxxxx00xxxxxxxxxxx", 
"0x00000007,0x00:ebx=xxxxxx0xxxx000xx0x0000x0xx000x0x" ]

On a Xeon E5 v2 system.

Since vixen is incompatible with live migration anyway we just removed the 
line. If there's more debugging information that would be helpful please
let me know.

Thanks, Sarah

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