RFR: 8265682: G1: Mutex::_name dangling in HeapRegionRemSet references after JDK-8264146 [v2]

[Coleen Phillimore]

On Mon, 26 Apr 2021 12:30:54 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> This change makes the Mutex constructor stdup the name passed in for the few cases that the name is constructed on the stack.  Most names are shorter than 64 characters so it's still a savings.
>> Tested with tier1.
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   use ASSERT_STREQ

Thanks Stefan!

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PR: https://git.openjdk.java.net/jdk/pull/3639