Request for sponsor: 8076995: gc/ergonomics/TestDynamicNumberOfGCThreads.java failed with java.lang.RuntimeException: 'new_active_workers' missing from stdout/stderr

Bengt Rutisson bengt.rutisson at oracle.com
Wed Apr 29 11:01:07 UTC 2015


On 2015-04-29 10:07, Bengt Rutisson wrote:
>
> Hi Derek,
>
> On 2015-04-28 20:34, Derek White wrote:
>> Hi All,
>>
>> Looking for a sponsor for the attached change set.
>
> I'm pushing this now.

And now it is pushed:
http://hg.openjdk.java.net/jdk9/hs-gc/hotspot/rev/01d4bdce1f7f

Bengt

>
> Thanks,
> Bengt
>
>>
>> - Derek
>>
>> Thanks Jon!
>>
>> On 4/28/15 1:05 PM, Jon Masamitsu wrote:
>>> Derek,
>>>
>>> Fix and test look good.
>>>
>>> Reviewed.
>>>
>>> Jon
>>>
>>> On 04/28/2015 06:35 AM, Derek White wrote:
>>>> Thanks Bengt!
>>>>
>>>> On 4/28/15 4:43 AM, Bengt Rutisson wrote:
>>>>> On 28/04/15 00:14, Derek White wrote:
>>>>>> 3rd webrev:
>>>>>>
>>>>>> Please review this fix for:
>>>>>> https://bugs.openjdk.java.net/browse/JDK-8076995
>>>>>> Webrev:
>>>>>> http://cr.openjdk.java.net/~drwhite/8076995/webrev.02/
>>>>>
>>>>> The link above actually goes to webrev.01, but going to webrev.02 
>>>>> works and that change looks good to me. Reviewed.
>>>>>>
>>>>>> Changes:
>>>>>>
>>>>>> - Updated TEST.groups to only run this test if G1, CMS, and 
>>>>>> Parallel GCs are enabled. Removed code from webrev.01 that also 
>>>>>> updated other GC tests. This is now tracked as a separate bug 
>>>>>> https://bugs.openjdk.java.net/browse/JDK-8078673
>>>>>
>>>>> Thanks for creating this bug to track the other tests that need to 
>>>>> be updated! Can you add a comment to JDK-8078673 that lists the 
>>>>> tests that you have identified as problematic?
>>>>>
>>>>> Thanks,
>>>>> Bengt
>>>>>
>>>>>>
>>>>>> FYI also created separate bug to track the processor count 
>>>>>> issues: https://bugs.openjdk.java.net/browse/JDK-8078703
>>>>>>
>>>>>> Thanks!
>>>>>>
>>>>>>  - Derek
>>>>>>
>>>>>> On 4/27/15 4:04 AM, Bengt Rutisson wrote:
>>>>>>>
>>>>>>> Hi Derek,
>>>>>>>
>>>>>>> On 2015-04-23 23:55, Derek White wrote:
>>>>>>>> 2nd webrev:
>>>>>>>>
>>>>>>>> Please review this fix for:
>>>>>>>> https://bugs.openjdk.java.net/browse/JDK-8076995
>>>>>>>> Webrev:
>>>>>>>> http://cr.openjdk.java.net/~drwhite/8076995/webrev.01/
>>>>>>>>
>>>>>>>> Changes:
>>>>>>>>
>>>>>>>> - Updated TEST.groups to only run this test if G1, CMS, and 
>>>>>>>> Parallel GCs are enabled.
>>>>>>>
>>>>>>> OK.
>>>>>>>
>>>>>>>> - Also searched for similar GC tests that specify a GC to use 
>>>>>>>> and added to TESTS.groups:
>>>>>>>>
>>>>>>>>   * gc/TestSmallHeap.java
>>>>>>>>   * gc/logging/TestGCId.java
>>>>>>>>   * gc/TestCardTablePageCommits.java
>>>>>>>>   * gc/arguments/TestParallelHeapSizeFlags.java
>>>>>>>>
>>>>>>>
>>>>>>> I think I would prefer this as a separate change. I'm not very 
>>>>>>> good with TEST.groups, but it looks like your suggested changes 
>>>>>>> are correct. However, I would prefer the get more attention to 
>>>>>>> that change and thus it would be better to send it out as a 
>>>>>>> separate review.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Bengt
>>>>>>>
>>>>>>>> - Responded to comments below.
>>>>>>>>
>>>>>>>> Did jprt run. Saw timeout, not sure if real or if it's one of 
>>>>>>>> those "embedded tests don't quite fit" errors.
>>>>>>>>    Fail/kill comment:  Targets failed.  Target 
>>>>>>>> linux_armvfpsflt_2.6-productEmb-c2-hotspot_servertest timedout.
>>>>>>>>
>>>>>>>>  - Derek
>>>>>>>>
>>>>>>>> On 4/21/15 1:23 PM, Jon Masamitsu wrote:
>>>>>>>>> Derek,
>>>>>>>>>
>>>>>>>>> Thanks for fixing this.
>>>>>>>>>
>>>>>>>>> Fix looks good.
>>>>>>>>>
>>>>>>>>> What do you think about always making 
>>>>>>>>> testDynamicNumberOfGCThread()
>>>>>>>>> check for the uniprocessor case (as opposed to passing in a 
>>>>>>>>> flag to explicitly
>>>>>>>>> check it)?
>>>>>>>>>
>>>>>>>>> ForceDynamicNumberOfGCThreads is a diagnostic flag
>>>>>>>>>
>>>>>>>>>   diagnostic(bool, ForceDynamicNumberOfGCThreads, 
>>>>>>>>> false,                    \
>>>>>>>>>           "Force dynamic selection of the number of 
>>>>>>>>> "                       \
>>>>>>>>>           "parallel threads parallel gc will use to aid 
>>>>>>>>> debugging")         \
>>>>>>>>>
>>>>>>>>> so I think you need +UnlockDiagnosticVMOptions.
>>>>>>>>>
>>>>>>>>> Jon
>>>>>>>>>
>>>>>>>>> On 04/21/2015 06:53 AM, Derek White wrote:
>>>>>>>>>> Hi All,
>>>>>>>>>>
>>>>>>>>>> Please review this fix for:
>>>>>>>>>> https://bugs.openjdk.java.net/browse/JDK-8076995
>>>>>>>>>> Webrev:
>>>>>>>>>> http://cr.openjdk.java.net/~drwhite/8076995/webrev.00/
>>>>>>>>>>
>>>>>>>>>> Summary:
>>>>>>>>>>
>>>>>>>>>> Part 1 is a test bug that tries to run G1 on embedded SE builds. Not changed by this webrev.
>>>>>>>>>>
>>>>>>>>>> Part two is assertion failure that is being fixed by this webrev.
>>>>>>>>>>
>>>>>>>>>> This is a fix for bug that triggered an assert when running CMS on very
>>>>>>>>>> small machines - 1 core x86, or 1-4 core ARM. This may seem unlikely but
>>>>>>>>>>   can easily happen when running virtual instances.
>>>>>>>>>>
>>>>>>>>>> Failure stack traces also show bug crashing printing a stack trace, but this is being tracked in another bug.
>>>>>>>>>>
>>>>>>>>>> Thanks,
>>>>>>>>>>
>>>>>>>>>> - Derek
>>
>

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