RFR (S): 8182703: Correct G1 barrier queue lock orderings

Kim Barrett kim.barrett at oracle.com
Thu Jul 6 20:15:43 UTC 2017


> On Jul 6, 2017, at 4:11 PM, Kim Barrett <kim.barrett at oracle.com> wrote:
> 
>> On Jul 4, 2017, at 10:00 PM, Kim Barrett <kim.barrett at oracle.com> wrote:
>> The lock ranking changes look good.
> 
> I'm going to retract that.
> 
> How does these new lock rankings interact with various assertions that
> rank() == or != Mutex::special?  I'm not sure those places handle
> these new ranks properly.  (I'm not sure those places handle
> Mutex::event rank properly either.)

And maybe this change needs to be discussed on hotspot-dev rather than hotspot-gc-dev.




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