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

Vladimir Kozlov vladimir.kozlov at oracle.com
Thu Aug 21 22:09:08 UTC 2014


"Errata HSW136. Software Using Intel® TSX May Result in Unpredictable 
System Behavior."

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.


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