Re: [Xen-devel] cpuidle and un-eoid interrupts at the local apic

["Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx>]

Zhang, Yang Z wrote on 2013-08-23:
> Thimo EichstÃdt wrote on 2013-08-23:
>> Hello Yang,
>> 
>> any update from your side ? Did your expert have any idea ? Possible
>> Hardware problem ?
> Sorry, no update on this. I am still waiting the answer from hardware team.
Hi Thimo,

I remember that the CPU always in idle state when this issue happens. So can 
you have a try to disable the C state in Xen to see if it helps?

> 
>> 
>> Best regards
>>    Thimo
>> Am 20.08.2013 10:50, schrieb Zhang, Yang Z:
>>> Jan Beulich wrote on 2013-08-20:
>>>>>>> On 20.08.13 at 07:43, Thimo EichstÃdt<thimoe@xxxxxxxxxx> wrote:
>>>>> (XEN) **Pending EOI error^M (XEN)   irq 29, vector 0x21^M (XEN) s[0]
>>>>> irq 30, vec 0x31, ready 0, ISR 00000001, TMR 00000000, IRR
>>>>> 00000000^M (XEN) All LAPIC state:^M (XEN) [vector]      ISR TMR
>>>>> IRR^M (XEN) [1f:00] 00000000 00000000 00000000^M (XEN) [3f:20]
>>>>> 00020002 00000000 00000000^M
>>>> It ought to be plain impossible to receive an interrupt at vector
>>>> 0x21 while the ISR bit for vector 0x31 is still set.
>>>> 
>>>> Intel folks - any input on this?
>>> I have no idea with this. But I will forward the information to
>>> some experts internally for help.
>>> 
>>>> Jan
>>> 
>>> Best regards,
>>> Yang
>>> 
>>> 
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@xxxxxxxxxxxxx
>>> http://lists.xen.org/xen-devel
> 
> 
> Best regards,
> Yang
>


Best regards,
Yang


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