[10u] RFA: JDK-8203305 and JDK-8203669 (RTM fixes for POWER9)

Vladimir Kozlov vladimir.kozlov at oracle.com
Fri Jun 8 18:13:20 UTC 2018


I pushed both changesets to

http://hg.openjdk.java.net/jdk-updates/jdk10u

Regards,
Vladimir

On 6/8/18 7:02 AM, Gustavo Romero wrote:
> Hello Vladimir,
> 
> Do know somebody who is a Committer on the Updates project that could sponsor these two changes for me?
> 
> It's already approved to be pushed.
> 
> I don't know anybody listed as "JDK Updates Project – Committer" to ask such a favor...
> 
> 
> Best regards,
> Gustavo
> 
> On 06/08/2018 10:32 AM, Rob McKenna wrote:
>> A sponsor must push to the jdk-updates/jdk10u forest. There are no
>> automatic syncs between the jdk project & the jdk-updates project.
>>
>>      -Rob
>>
>> On 07/06/18 23:18, Gustavo Romero wrote:
>>> Hi Rob,
>>>
>>> Thanks for approving the backports.
>>>
>>> Is that necessary any sponsor to push them or the integration will happen
>>> automatically from now on?
>>>
>>>
>>> Regards,
>>> Gustavo
>>>
>>> On 06/05/2018 04:18 PM, Gustavo Romero wrote:
>>>> Hi Rob,
>>>>
>>>> On 06/04/2018 09:33 PM, Rob McKenna wrote:
>>>>> Hi Gustavo,
>>>>>
>>>>> As per rules 1 & 2, please add a fix request comment to each bug along
>>>>> with the jdk10u-fix-request label.
>>>>>
>>>>> (note, this is the new process - approval mails are no longer necessary)
>>>>
>>>> oh I see. Thank you. It's done. I was only unsure about how I could turn
>>>> conspicuous the fact that it's a patchset and so getting 8203305 implies
>>>> getting 8203669. I did a crossref: so on request for 8203305 I mention
>>>> 8203669, and vice versa. Please, let me if it's not ok.
>>>>
>>>>
>>>> Best regards,
>>>> Gustavo
>>>>
>>>>>      -Rob
>>>>>
>>>>> On 04/06/18 17:05, Gustavo Romero wrote:
>>>>>> Hi,
>>>>>>
>>>>>> Some distro releases, notably Ubuntu 18.04 LTS "Bionic Beaver", are already
>>>>>> shipping OpenJDK 10. Ubuntu 18.04 is able to run on the new POWER9
>>>>>> machines. On some of these new POWER9 machines the JVM won't be able to
>>>>>> detect a new POWER9 TM mode (called "TM with No Suspend mode") and will
>>>>>> halt on checking if the JVM is capable of enabling the RTM feature (which
>>>>>> depends upon TM).
>>>>>>
>>>>>> So I would like to request the approval to backport the following two
>>>>>> changes to 10u that address this issue on POWER9 DD2.1:
>>>>>>
>>>>>> Title        : RFR(XS): 8203305: PPC64: Improve TM detection for enabling RTM on Linux / 
>>>>>> POWER9 [1]
>>>>>> Bug          : https://bugs.openjdk.java.net/browse/JDK-8203305
>>>>>> Review thread: http://mail.openjdk.java.net/pipermail/hotspot-dev/2018-May/032313.html
>>>>>> Patch        : http://hg.openjdk.java.net/jdk/jdk/raw-rev/e2d9b38630c3
>>>>>>
>>>>>> Title        : RFR(S) : 8203669: PPC64: Fix jtreg RTM tests after "8203305: Improve TM 
>>>>>> detection for enabling RTM on Linux / POWER9" [2]
>>>>>> Bug          : https://bugs.openjdk.java.net/browse/JDK-8203669
>>>>>> Review thread: http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2018-May/029091.html
>>>>>> Patch        : http://hg.openjdk.java.net/jdk/jdk/raw-rev/ede65c4fb6da
>>>>>>
>>>>>> Both changes apply cleanly to 10u except for small offsets.
>>>>>>
>>>>>> Change [1] is PPC-only. Change [2] touches shared code but it just changes
>>>>>> a jtreg test in regard to PPC and fixes a few typos. Although changes [1]
>>>>>> and [2] are marked as "Enhancement" in the JBS, I understand that they
>>>>>> actually fit the "CPU fix merges" as found on Rule 3, in the Request
>>>>>> for Approval rules [3].
>>>>>>
>>>>>> Thank you.
>>>>>>
>>>>>>
>>>>>> Best regards,
>>>>>> Gustavo
>>>>>>
>>>>>> [3] http://openjdk.java.net/projects/jdk-updates/approval.html
>>>>>>
>>>>>
>>>>
>>>
>>
> 


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