Re: dom0 hang

[Mukesh Rathor <mukesh.rathor@oracle.com>]

Keir Fraser wrote:
> On 07/07/2009 08:14, "Yu, Ke" <ke.yu@intel.com> wrote:
> 
>>> BTW, why can't the tick be suspended when csched_schedule() concludes
>>> it's idle vcpu before returning? won't that would make it less intrusive.
>> The tick suspend can be put in csched_schedule, but the suspend/resume logic
>> is still needed in acpi_processor_idle anyway, due to another dbs_timer
>> suspend/resume. The intention here is to make acpi_processor_idle the central
>> place for timers which are stoppable during idle period. If there is other
>> stoppable timer in the future, it can be easily added to acpi_processor_idle.
>> So it is clean to keep current logic. and as long as we carefully not over
>> doing the softirq, it looks not so intrusive. How do you think?
> 
> I think the approach is fine. I also already applied your patch since it is
> obviously a good bug fix, even if it doesn't fix Mukesh's bug. And I fixed
> the comment at the same time. And I backported it for Xen 3.4.1.
> 
>  -- Keir
> 

It fixes my bug.

Thanks,
Mukesh