Re: [Xen-devel] Only CPU0 active after ACPI S3, xen 4.1.3

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 21.12.12 at 14:33, Marek Marczykowski <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
wrote:
> On 21.12.2012 09:55, Jan Beulich wrote:
>>>>> On 21.12.12 at 05:52, Marek Marczykowski 
>>>>> <marmarek@xxxxxxxxxxxxxxxxxxxxxx> 
> wrote:
>>> On 21.12.2012 00:17, Marek Marczykowski wrote:
>>>> With this patch applied (on 4.1.4 and 4.3-unstable), I've got original 
>>> symptom
>>>> - only CPU0 active after ACPI S3. Didn't get reboot after few tries.
>>>> "xl debug-key r" output attached.
>>>> Anyway it looks like bug was introduced somehow between 4.1.2 and 4.1.3 - 
>>>> on
>>>> 4.1.2 none of above problems happened.
>>>
>>> I've done bisect on xen 4.1 and found problematic commit:
>>> http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/1f95b55ef427 
>> 
>> In that case, using "sched_ratelimit_us=0" should make the
>> problem go away again - did you try that?
> 
> This option does not help when trying 4.1.4, but does when trying xen 
> compiled
> from above c/s.

Which basically calls for you doing another bisection round, this
time with that option in place.

But for the moment, as said earlier, it escapes me how that change
would have an impact on resume (the more that we have no logs).
Will need to look at this in closer detail after New Year (and George,
maybe you could take a look too).

You don't happen to use "dom0_vcpus_pin", do you?

Jan


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