[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] dom0 hang
On 07/07/2009 08:14, "Yu, Ke" <ke.yu@xxxxxxxxx> 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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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