[PING] Re: RFR: 8146009: "pure virtual method called" with using new GC logging mechanism

Marcus Larsson marcus.larsson at oracle.com
Wed Oct 12 09:12:45 UTC 2016


Great, thanks Dmitry!

Marcus


On 10/12/2016 11:00 AM, Dmitry Samersoff wrote:
> Marcus,
>
> This version looks good for me.
>
> -Dmitry
>
> On 2016-10-12 11:42, Marcus Larsson wrote:
>> Any further comments on the updated patch?
>>
>> Marcus
>>
>>
>> On 10/10/2016 11:20 AM, Marcus Larsson wrote:
>>> Updated webrev after feedback:
>>> http://cr.openjdk.java.net/~mlarsson/8146009/webrev.01
>>>
>>> Incremental:
>>> http://cr.openjdk.java.net/~mlarsson/8146009/webrev.00-01
>>>
>>>
>>> On 10/07/2016 04:26 PM, Marcus Larsson wrote:
>>>> Hi,
>>>>
>>>> Making another attempt to fix this issue.
>>>>
>>>> Summary:
>>>> The following patch resolves a problem where the VM would crash
>>>> during shutdown due to static log related memory being de-initialized
>>>> before the last use of the logging framework. The solution involves
>>>> parts of the Nifty Counter idiom [0] to control static initialization
>>>> and de-initialization of stdout's and stderr's LogOutputs. Both
>>>> objects are now allocated using placement new, and avoids destructor
>>>> calls during de-initialization. The LogStreamInitializer makes sure
>>>> both objects are initialized before first use.
>>>>
>>>> Because the LogOutput::Stdout/err pointers could no longer be kept in
>>>> LogOutput, I've replaced all usages of them with the new references
>>>> instead.
>>>>
>>>> The patch includes a regression test for this issue, contributed by
>>>> Michail Chernov.
>>>>
>>>> Webrev:
>>>> http://cr.openjdk.java.net/~mlarsson/8146009/webrev.00
>>>>
>>>> Issue:
>>>> https://bugs.openjdk.java.net/browse/JDK-8146009
>>>>
>>>> Testing:
>>>> JPRT testset hotspot, included test on supported platforms.
>>>>
>>>> Thanks,
>>>> Marcus
>>>>
>>>> [0] https://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Nifty_Counter
>



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