RFR: 8221894: Add comments for docker tests in the test doc

[Jie Fu]

Thank you so much Erik.

On 2019/4/9 下午9:06, Erik Joelsson wrote:
> Sure, will do.
>
> /Erik
>
> On 2019-04-08 06:57, Erik Joelsson wrote:
>> Looks good to me.
>>
>> /Erik
>>
>> On 2019-04-08 00:48, Jie Fu wrote:
>>> Hi David and Erik,
>>>
>>> Thank you for your review and very nice suggestions.
>>> Here is the latest version: 
>>> http://cr.openjdk.java.net/~jiefu/8221894/webrev.03/
>>> Please see comments inline and review.
>>> Thanks a lot.
>>>
>>>> I have two comments on the proposed text:
>>>>
>>>> 1. I think "oraclelinux" should be "Oracle Linux".
>>> Done.
>>>>
>>>> 2. I don't understand the example as I don't know why Ubuntu 16.04 
>>>> would be considered something "not newer than" OL 7.6. I'm guessing 
>>>> this relates to the kernel version in each ?? If so perhaps we 
>>>> should spell out what the relevant kernel version is?
>>> Good question. It relates to the glibc version in each.
>>> Systems with glibc versions not compatible with the one used in the 
>>> default docker image (e.g., Oracle Linux 7.6 for x86) will fail with 
>>> default test parameters.
>>> Done.
>>>
>>> Best regards,
>>> Jie
>>>