[9] RFR (S) 8055069: TSX and RTM should be deprecated more strongly until hardware is corrected

[Vladimir Kozlov]

Thanks you, Igor

Vladimir

On 8/21/14 3:59 PM, Igor Veresov wrote:
> Looks good.
>
> igor
>
> On Aug 21, 2014, at 3:09 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
>
>> http://cr.openjdk.java.net/~kvn/8055069/webrev/
>> https://bugs.openjdk.java.net/browse/JDK-8055069
>>
>> Problem:
>> "Errata HSW136. Software Using Intel® TSX May Result in Unpredictable System Behavior."
>>
>> Changes:
>> Require to specify UnlockExperimentalVMOptions flag together with UseRTMLocking flag on un-patched systems where CPUID allows it but is unsupported otherwise. This would be for experiments and research and not for production applications as the name suggests.
>> Give a warning on un-patched system when RTM is used.
>> I have to adjust several jtreg RTM tests.
>>
>> Note, by default UseRTMLocking is off.
>>
>> I ran compiler jtreg tests on un-patched system and on machine without RTM.
>>
>> Thanks,
>> Vladimir
>