Request for review 8025635: SoftReferences are not cleared before metaspace OOME are thrown

[Jon Masamitsu]

On 10/3/2013 10:27 PM, Stefan Karlsson wrote:
> On 10/4/13 12:44 AM, Jon Masamitsu wrote:
>> 8025635: SoftReferences are not cleared before metaspace OOME are thrown
>>
>> If native memory has been exhausted or MaxMetaspaceSize has been set and
>> has been reached, a GC will be done to try and unload classes and 
>> free metadata
>> space.  If not enough metadata space has been freed, another GC which 
>> clears
>> SoftReferences will be done.
>>
>> Note that GC's are normally done to unload classes and free metadata 
>> space.
>> If not enough metadata space is freed by the GC, additional
>> space is allocated and used for the metadata allocation.  It is only in
>> the situation where no additional native memory can be allocated for
>> metadata that SoftReferences are cleared.
>>
>> http://cr.openjdk.java.net/~jmasa/8025635/webrev.00/ 
>
> Will this change work with CMS?

You're right.  It doesn't work for CMS.  Let me work on it.

Thanks.

Jon
>
> thanks,
> StefanK
>