[11u] RFR: 8250598: Hyper-V is detected in spite of running on host OS

[Yasumasa Suenaga]

Hi all,

I think this change for 11u is ready to review.
I haven't heard any problems on jdk/jdk.

Could you review it?

>>>>       JBS: https://bugs.openjdk.java.net/browse/JDK-8250598
>>>>       Original fix: https://hg.openjdk.java.net/jdk/jdk/rev/80c95309a924
>>>>       webrev for 11u: http://cr.openjdk.java.net/~ysuenaga/JDK-8250598/jdk11u/webrev.00/


Thanks,

Yasumasa


On 2020/08/31 20:02, Yasumasa Suenaga wrote:
> Hi Christoph,
> 
> JDK 11 is LTS version, so we might see hs_err logs which relates to this fix in production system. It is the reason why I want to backport it to 11.0.9 if possible.
> 
> OTOH it is not so critical and JDK 11 will enter rampdown, I understand that we have to be careful.
> I will comply the timing when "jdk11u-fix-yes" is added to JBS.
> 
> 
> Thanks,
> 
> Yasumasa
> 
> 
> On 2020/08/31 19:04, Langer, Christoph wrote:
>> Hi Yasumasa,
>>
>> is there any specific reason why it should be part of 11.0.9?
>>
>> Without having more detailed knowledge of the matter, I'd say it's cautious enough to postpone this backport to 11.0.10, given that we're about to enter rampdown...
>>
>> Best regards
>> Christoph
>>
>>> -----Original Message-----
>>> From: jdk-updates-dev <jdk-updates-dev-retn at openjdk.java.net> On
>>> Behalf Of Yasumasa Suenaga
>>> Sent: Freitag, 28. August 2020 10:02
>>> To: Baesken, Matthias <matthias.baesken at sap.com>; Yasumasa Suenaga
>>> <yasuenag at gmail.com>; jdk-updates-dev at openjdk.java.net
>>> Subject: Re: [11u] RFR: 8250598: Hyper-V is detected in spite of running on
>>> host OS
>>>
>>> Hi Matthias,
>>>
>>> On 2020/08/28 16:22, Baesken, Matthias wrote:
>>>> Hi Yasumasa ,I suggest to let the  change  "rest"  in  jdk/jdk for  a couple of
>>> weeks  before  going for downports .
>>>> (not saying that downporting it is a bad thing)
>>>
>>> I understand what you say, but I want to backport it to 11.0.9 if possible.
>>> 11.0.9 will enter rampdown in 1 Sep...
>>>
>>>
>>> Thanks,
>>>
>>> Yasumasa
>>>
>>>
>>>> Best regards, Matthias
>>>>
>>>> -----Original Message-----
>>>> From: Yasumasa Suenaga <yasuenag at gmail.com>
>>>> Sent: Freitag, 28. August 2020 02:55
>>>> To: jdk-updates-dev at openjdk.java.net
>>>> Cc: Baesken, Matthias <matthias.baesken at sap.com>
>>>> Subject: [11u] RFR: 8250598: Hyper-V is detected in spite of running on host
>>> OS
>>>>
>>>> Hi all,
>>>>
>>>> Please approve backport of JDK-8250598:
>>>>
>>>>       JBS: https://bugs.openjdk.java.net/browse/JDK-8250598
>>>>       Original fix: https://hg.openjdk.java.net/jdk/jdk/rev/80c95309a924
>>>>       webrev for 11u: http://cr.openjdk.java.net/~ysuenaga/JDK-
>>> 8250598/jdk11u/webrev.00/
>>>>
>>>> The patch does not apply cleanly on 11u due to additional enhancements to
>>> x86 / x86_64 processors.
>>>> So I've prepared another webrev for 11u.
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> Yasumasa
>>>>