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Re: [Xen-devel] [xen-unstable] Commit 2ca9fbd739b8a72b16dd790d0fff7b75f5488fb8 AMD IOMMU: allocate IRTE entries instead of using a static mapping, makes dom0 boot process stall several times.



Friday, August 16, 2013, 9:21:01 AM, you wrote:

>>>> On 16.08.13 at 01:41, Sander Eikelenboom <linux@xxxxxxxxxxxxxx> wrote:
>> Ok i have to revise ... *sigh* ... it gets stuck with clocksource=pit as 
>> well (although not always it seems)

> Not that surprising. Doing it the other way round (suppressing
> use of cpuidle and cpufreq - first together, then separately -
> would seem like the more promising route with the information
> you gathered, with cpuidle being the more likely of the two.

Well not specifying "cpuidle" and "cpufreq=xen" on the xen boot line in grub, 
should not enable them for the clocksource=pit case right ?
I did exactly that on this boot.

(from 
http://wiki.xen.org/wiki/Xen_power_management#PIT_as_broadcast_timer_source_.28clocksource.29
 i read:

Currently, by default cpuidle will be selectively disabled while HPET is not 
available.
So for system only with PIT, the cpuidle is still disabled by default.
If user really wants cpuidle feature with PIT as broadcast source, please 
specify 'cpuidle' grub option.
)

--
Sander

> Jan




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