* Explicit cpuid may be incompatible with vixen
@ 2018-01-14 5:55 Sarah Newman
2018-01-14 11:31 ` Andrew Cooper
0 siblings, 1 reply; 2+ messages in thread
From: Sarah Newman @ 2018-01-14 5:55 UTC (permalink / raw)
To: xen-devel@lists.xen.org
We had an experience where vixen would crash with
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) GENERAL PROTECTION FAULT
(XEN) [error_code=0000]
(XEN) ****************************************
(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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* Re: Explicit cpuid may be incompatible with vixen
2018-01-14 5:55 Explicit cpuid may be incompatible with vixen Sarah Newman
@ 2018-01-14 11:31 ` Andrew Cooper
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Cooper @ 2018-01-14 11:31 UTC (permalink / raw)
To: Sarah Newman, xen-devel@lists.xen.org
On 14/01/2018 05:55, Sarah Newman wrote:
> We had an experience where vixen would crash with
>
> (XEN)
> (XEN) ****************************************
> (XEN) Panic on CPU 0:
> (XEN) GENERAL PROTECTION FAULT
> (XEN) [error_code=0000]
> (XEN) ****************************************
> (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.
Can you provide the full stack trace and registers please?
~Andrew
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