Request for Review (s) - 8154743: Internal Error: psParallelCompact.hpp assert(addr >= _region_start) failed: bad addr

Kim Barrett kim.barrett at oracle.com
Wed Apr 27 18:29:07 UTC 2016


> On Apr 25, 2016, at 5:23 PM, Jon Masamitsu <jon.masamitsu at oracle.com> wrote:
> 
> 8154743: Internal Error: psParallelCompact.hpp assert(addr >= _region_start) failed: bad addr
> https://bugs.openjdk.java.net/browse/JDK-8154743
> 
> ParallelGC summarizes liveness information (among other things) into
> regions for parallel compaction.  It allows the calculation of the region
> index for the region just beyond the end of the heap but should not
> access that region.  One of the printing methods mistakenly did.
> 
> One line fix + more detail on a couple of the asserts + a test
> 
> http://cr.openjdk.java.net/~jmasa/8154743/webrev.00/
> 
> Tested with new test and with gc_test_suite (in progress) and -Xlog:all=trace.
> 
> Thanks.
> 
> Jon

Looks good.  Thanks for adding the test.



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