Request for review(M): 6627983: G1: Bad oop deference during marking

John Rose john.r.rose at
Thu Feb 24 14:40:19 PST 2011

Looks good.  You have typo:  s/alinged/aligned/ in the sparc code.

I can't tell from the patch, so I'll ask:  How did you locate all the points that needed the extra "false" argument?  Also, is there a stress test that reliably produces the bug?

-- John

On Feb 24, 2011, at 12:37 PM, Igor Veresov wrote:

> Bulk zeroing reduction didn't work with G1, because arraycopy would call pre-barriers on uninitialized oops. The solution is to have version of arraycopy stubs that don't have pre-barriers.
> Also refactored arraycopy stubs generation on SPARC to be more readable and reduced the number of stubs necessary in some cases.
> Webrev:
> Thanks,
> igor

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