On 05/06/2016 04:46 PM, Boris Ostrovsky wrote:
> On 05/06/2016 03:38 PM, Joseph Salisbury wrote:
>> On 05/06/2016 03:13 PM, Boris Ostrovsky wrote:
>>> On 05/06/2016 02:48 PM, Thomas Gleixner wrote:
>>>> Yuck. That dies with a divide error. And that looks like XEN is supplying crap
>>>> data in the CPUID.
>>> Joe, do you have
>>>
>>> ed6069b xen/apic: Provide Xen-specific version of cpu_present_to_apicid
>>> APIC op
>>>
>>> -boris
>> Yes the commit is in the 4.4 based Ubuntu kernel. This bug also happens
>> with the vanilla 4.6-rc5 kernel, which also has that commit.
>
> Can you post guest's cpuid -1 -r ? (I guess after you verify Thomas' patch)
>
> Thanks.
> -boris
>
>
>
Thomas' patch does resolve the bug. The cpuid info can be seen here: https://launchpadlibrarian.net/258234267/cpuid_full.txt
On 05/06/2016 04:46 PM, Boris Ostrovsky wrote: to_apicid /launchpadlibra rian.net/ 258234267/ cpuid_full. txt
> On 05/06/2016 03:38 PM, Joseph Salisbury wrote:
>> On 05/06/2016 03:13 PM, Boris Ostrovsky wrote:
>>> On 05/06/2016 02:48 PM, Thomas Gleixner wrote:
>>>> Yuck. That dies with a divide error. And that looks like XEN is supplying crap
>>>> data in the CPUID.
>>> Joe, do you have
>>>
>>> ed6069b xen/apic: Provide Xen-specific version of cpu_present_
>>> APIC op
>>>
>>> -boris
>> Yes the commit is in the 4.4 based Ubuntu kernel. This bug also happens
>> with the vanilla 4.6-rc5 kernel, which also has that commit.
>
> Can you post guest's cpuid -1 -r ? (I guess after you verify Thomas' patch)
>
> Thanks.
> -boris
>
>
>
Thomas' patch does resolve the bug. The cpuid info can be seen here:
https:/
Thanks,
Joe