RFR (M) [7u60]: Backport of JDK-8014555 G1: Memory ordering problem with Conc refinement and card marking (original) (raw)
Mikael Gerdin mikael.gerdin at oracle.com
Tue Jan 28 06:01:12 PST 2014
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Hi all,
Please review this backport for the introduction of the StoreLoad barrier into G1's write barrier.
The patch from 8 does not apply cleanly to 7u60 since the MacroAssembler code was broken out of assembler_*.[ch]pp into macroAssembler_*.[ch]pp. When I manually edited the patch file to apply the change to the assembler*- files the patch applies with a line offset so the code has not been changed, just moved.
(this fix depends on JDK-8029335, however that change backports cleanly so as per the process no extra code review is required for the backport.)
Webrev: http://cr.openjdk.java.net/~mgerdin/8014555-backport/webrev.0 Bug link: https://bugs.openjdk.java.net/browse/JDK-8014555
/Mikael
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