RFR: JDK-8162354: Unable to build JDK 9 on a Sparc T7-1 with default boot-jdk 8.0

[David Holmes]

On 3/08/2016 7:11 PM, Erik Joelsson wrote:
> New webrev: http://cr.openjdk.java.net/~erikj/8162354/webrev.02/
>
> I found that the first working update was 8u20 and changed to use that
> instead for minimal impact.

Seems reasonable. :)

Thanks,
David

> /Erik
>
> On 2016-08-03 09:08, Erik Joelsson wrote:
>>
>>
>> On 2016-08-03 04:20, David Holmes wrote:
>>> Hi Erik,
>>>
>>> On 3/08/2016 1:11 AM, Erik Joelsson wrote:
>>>> Hello,
>>>>
>>>> The default bootjdk for 9 is JDK 8. Unfortunately JDK 8 does not
>>>> work on
>>>> newer M7 sparc hardware. This has of course been fixed in an update.
>>>> This patch changes the Jib profile configuration to use 8u102 as
>>>> bootjdk
>>>> on Solaris sparc if the cpu is of the M7 type.
>>>
>>> Isn't 8u102 a bit too recent to use - shouldn't we use the oldest
>>> version that works on M7?
>>>
>> That is a good point. Either go with latest greatest when changing or
>> try to find the minimum change. We had a similar problem in JDK 8
>> where 7GA did not work on macosx. At that time we took the first
>> working version. I will see if I can figure out which one it is at least.
>>> Does this actually affect official builds (do they use M7) or does
>>> this simply enable use of M7 in the other build processes (JPRT etc)?
>>>
>> Unclear. The new hardware we received is M7, so without a change we
>> can't use that hardware for any builds, which would be sad since the
>> machine is very fast. I suspect that down the line we will want to use
>> this class of hardware in all types of build scenarios. IMO, we get
>> adequate testing that the 8GA as boot (which is the defined bootjdk)
>> works on all the other platforms.
>>
>> /Erik
>>
>