RFR: Merge remaining jdk11

[Roman Kennke]

Yep. My brain is pudding. Thank you!!

Am 8. Juni 2018 20:49:46 MESZ schrieb Zhengyu Gu <zgu at redhat.com>:
>Okay, upstream actually removed StringTable::rehash() from SP cleanup 
>task, just as our patch does.
>
>I guess this just a merging issue then.
>
>Thanks,
>
>-Zhengyu
>
>
>
>On 06/08/2018 12:48 PM, Roman Kennke wrote:
>> Please push that. We need to carefully check a couple of places
>(ref-proc, cleanup, etc) anyway. Thanks for looking into it.
>> 
>> Are we implementing/using the conc cleanup stuff already?
>> 
>> Thanks, Roman
>> 
>> Am 8. Juni 2018 18:42:46 MESZ schrieb Zhengyu Gu <zgu at redhat.com>:
>>>
>>>
>>> On 06/08/2018 11:31 AM, Roman Kennke wrote:
>>>> Thanks!
>>>> I've pushed a minor release build fix after the fact. It was not
>>>> committed to the merge changeset when I pushed the main batch.
>Please
>>>> have a look at the concurrentHashMap issue ASAP.
>>>
>>> Looks like that it still tries to rehash the string table at
>>> safepoints,
>>> which defeats the purpose of concurrent cleanup ...
>>>
>>>
>http://cr.openjdk.java.net/~zgu/shenandoah/stringtable_no_par_cleanup/webrev.00/
>>> Seems to fix that. But this looks like an upstream bug (?) Do we
>know
>>> if
>>> there is a reported one? I will try to create a reproducer for
>upstream
>>> ...
>>>
>>> Thanks,
>>>
>>> -Zhengyu
>>>
>>>>
>>>> Roman
>>>>
>>>>> Ok!
>>>>>
>>>>> Thanks,
>>>>>
>>>>> -Zhengyu
>>>>>
>>>>> On 06/08/2018 10:36 AM, Roman Kennke wrote:
>>>>>> This merges from jdk/jdk up to:
>>>>>>
>>>>>> changeset:   50805:ec70aad8aebe
>>>>>> user:        simonis
>>>>>> date:        Fri Jun 08 10:22:26 2018 +0200
>>>>>> summary:     8204335: [ppc] Assembler::add_const_optimized
>>> incorrect for
>>>>>> some inputs
>>>>>>
>>>>>>
>>>>>> There've only been smallish stuff, and a bunch of improvements
>that
>>> I
>>>>>> pushed to upstream meanwhile.
>>>>>>
>>>>>> Testing looks good, except that StringInternCleanup.java appears
>to
>>>>>> trigger a bug in concurrentHashMap when run from fastdebug. I
>hope
>>>>>> Zhengyu can look at that?
>>>>>>
>>>>>> List of changesets:
>>>>>>
>>>
>http://cr.openjdk.java.net/~rkennke/upstream-merge-2018-06-08/outgoing.txt
>>>>>>
>>>>>>
>>>>>> Ok?
>>>>>>
>>>>>> Roman
>>>>>>
>>>>
>>>>
>> 

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