RFR: 8362564: hotspot/jtreg/compiler/c2/TestLWLockingCodeGen.java fails on static JDK on x86_64 with AVX instruction extensions [v2]

[Vladimir Kozlov]

On Wed, 30 Jul 2025 17:43:11 GMT, Jiangli Zhou <jiangli at openjdk.org> wrote:

>> Also about back porting into JDK 25. You need to rise priority - only P1 and P2 are allowed in RDP2.
>
>> Also about back porting into JDK 25. You need to rise priority - only P1 and P2 are allowed in RDP2.
> 
> Changed to P2.

@jianglizhou   So it is similar to issue in AOT where we force `ForceUnreachable` flag to be `true` to generate far calls (full address is used instead of relative offset) into VM's runtime methods.  But in static JDK VM runtime methods addressed far from CodeCache so it triggers far call.

Which means normal JDK is not affected and that is why we did not see it in our testing.

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PR Comment: https://git.openjdk.org/jdk/pull/26395#issuecomment-3137387749