[8u] RFR (S) 8071374: Native disassembler implementation may be not thread-safe

[Andrew Haley]

Looks good.

On 4/23/21 10:37 AM, Aleksey Shipilev wrote:
> Original bug:
>    https://bugs.openjdk.java.net/browse/JDK-8071374
>    https://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/116a12504a2f
> 
> This still bites me with 8u JMH runs. The Stress reproducer from the issue also fails without this 
> patch and passes with it.
> 
> Unfortunately, the patch has a few conflicts when applied to 8u:
>    - at times, the context near print_cr-s is different enough for automatic patch to fail;
>    - there are no PrintAssemblyOption in 8u (added later by JEP 165);
>    - there is no jvmciCompilerToVM.cpp (added later by JEP 243);
> 
> 8u webrev:
>    https://cr.openjdk.java.net/~shade/8071374/webrev.8u.01/
> 
> Testing: reproducer from the test (now passes); adhoc JMH perfasm runs (now reliable); hotspot_tier1
> 


-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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