Re: [Xen-devel] Xen4.2 S3 regression?

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.09.12 at 14:27, Ben Guthro <ben@xxxxxxxxxx> wrote:
> On Mon, Sep 24, 2012 at 8:22 AM, Pasi KÃrkkÃinen <pasik@xxxxxx> wrote:
> 
>> On Mon, Sep 24, 2012 at 07:54:05AM -0400, Ben Guthro wrote:
>> >    I see - Konrad - do you have a changeset I can look for with the
>> features
>> >    Jan describes?
>>
>> xen-acpi-processor driver was merged to upstream Linux kernel v3.4.
>>
>>
> I see - so the advanced methods are not being used then
> This same kernel does work with Xen-4.0.x though. Is there an assumption in
> the code that ties Xen-4.2 to a newer kernel?

No, but if e.g. you merely look at the differences between both
cpu_uninit() versions, you'll already see that there's quite a bit
more writing of memory being done in 4.0.x than in 4.2.0 or
-unstable, which increases the chances of hiding an eventual
cache flushing problem.

Jan

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