Re: KVM Test result, KVM62-RC2

[Avi Kivity <avi@qumranet.com>]

Yang, Sheng wrote:
>> One new issue:
>> 1. qcow based smp linux guests likely hang
>> https://sourceforge.net/tracker/index.php?func=detail&aid=1901980&group_
>> id=180599&atid=893831
>> We found the issue while booting qcow based rhel5.1 smp guest. It likely
>> hangs at the first booting. If using raw disk image, the problem will
>> not happen.
>>
>>     
>
> This issue(i8254 don't connected to ioapic) happened from time to time on when 
> I debug IOAPIC and PIT related things. I think it caused by guest kernel 
> can't receive PIT interrupt in time. And I have done a experiment with in 
> kernel PIT patch, and it works well to fix this issue. 
>
> I guess this may due to qcow need some more time, and the accumulate time 
> causing PIT interrupt delayed?
>   

I think time calibration happens before any disk access by the kernel.

-- 
error compiling committee.c: too many arguments to function


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