RFR(8u): JDK-8145442: Add the facility to verify remembered sets for G1

[Jon Masamitsu]

Poonam,

Changes look good.

With VerifyBeforeGC and VerifyAfterGC the gc logs will look
a little different?  The rem-set verify part of the log will be separate?
Instead of

2.701: [Full GC (Allocation Failure)  VerifyBeforeGC:[Verifying threads 
heap Roots HeapRegionSets HeapRegions RemSet syms strs zone dict cldg 
metaspace chunks hand C-heap code cache ]

the rem-set message will be from

4028 if (VerifyRememberedSets) {
4029 if (PrintGCDetails) {
4030 gclog_or_tty->print_cr("[Verifying RemSets before GC]");
4031 } Jon



On 01/27/2016 12:03 PM, Poonam Bajaj Parhar wrote:
> Hello,
>
> Could I get reviews for the backport of the fix for JDK-8145442 
> <https://bugs.openjdk.java.net/browse/JDK-8145442> to jdk8u.
>
> Webrev: http://cr.openjdk.java.net/~poonam/8145442/webrev.8u/
> jdk9 changeset: 
> http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/3666a5638df2
> Testing: JPRT, GCBasher
>
> Thanks,
> Poonam
>

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