RFR (S) 8055069: TSX and RTM should be deprecated more strongly until hardware is corrected
igor.veresov at oracle.com
Thu Aug 21 22:59:54 UTC 2014
On Aug 21, 2014, at 3:09 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
> "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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