RFR: JDK-8160361: SEGV occurred at JNIHandleBlock::oops_do(OopClosure*)

[Coleen Phillimore]

On 6/27/16 11:25 AM, Yasumasa Suenaga wrote:
> Thanks Thomas!
>
> Yasumasa
>
> On 2016/06/28 0:17, Thomas Schatzl wrote:
>> Hi,
>>
>> On Mon, 2016-06-27 at 23:38 +0900, Yasumasa Suenaga wrote:
>>> Hi all,
>>>
>>> This review request relates to JDK-8160310: HotSpot cannot be built
>>> with GCC 6 .
>>>
>>> I encountered VM crash when I compiled OpenJDK 9 with GCC 6
>>> on Fedora 24 x64.
>>>
>>> This crash was occurred in fastdebug JVM which was built by GCC 6.
>>> I'm not sure this crash relates to GCC 6, but I think NULL check
>>> should be added
>>> at this point.
>>>
>>> I uploaded webrev.
>>> Could you review it?
>>>
>>>    http://cr.openjdk.java.net/~ysuenaga/JDK-8160361/webrev.00/
>>>
>>>
>>> I'm jdk 9 committer, but I cannot access JPRT.
>>> So I need a sponsor.
>>
>>   looks good to me. Not sure why it did not crash earlier, as the
>> _handles member has always been allowed to be NULL (from what I
>> understand).

I was wondering this too.  If there are no resolved_references, and now 
modules, it should be null.  Maybe with modules, that's less likely?
Coleen

>>
>> Thanks,
>>   Thomas
>>