RFR(S): 8220672: [TESTBUG] TestCPUSets should check that cpuset does not exceed available cores

[mikhailo.seledtsov at oracle.com]

Thank you Leonid,

Misha


On 5/20/19 1:12 PM, Leonid Mesnik wrote:
> +1
>
> This patch is reasonable  and a good workaround. However new issue to find more robust/correct would be nice.
>
> Leonid
>
>> On May 19, 2019, at 9:01 PM, David Holmes <david.holmes at oracle.com> wrote:
>>
>> Hi Misha,
>>
>> On 18/05/2019 8:36 am, mikhailo.seledtsov at oracle.com wrote:
>>> Please review this change that fixes the TestCPUSets test. In short, in some configurations the size of CPU set
>>> exceeds the available amount of cores; see bug description and comments for details.
>>> The fix (or some may say work-around) in this change is to limit the size of the set to the number of available CPUs.
>> I think the workaround is reasonable and should be pushed. But as per the bug report I think we still need to get to the bottom of where the misinformation is coming from and whose bug it really is.
>>
>> Thanks,
>> David
>> -----
>>
>>>     JBS: https://bugs.openjdk.java.net/browse/JDK-8220672
>>>     Webrev: http://cr.openjdk.java.net/~mseledtsov/8220672.00/
>>>     Testing:
>>>       - ran the affected test on hosts where issue occurred
>>>       - ran the affected test on a variety of hosts in build-and-test cluster
>>>       The problem does not show up anymore.
>>> Thank you,
>>> Misha