RFR(XS): 8037958: ConcurrentMark::cleanup leaks BitMaps if VerifyDuringGC is enabled

[Stefan Karlsson]

On 2014-03-21 10:33, Mikael Gerdin wrote:
> Hi all,
>
> While attempting to track down a memory leak I noticed that G1 leaks two
> BitMap instances per concurrent cycle if VerifyDuringGC is enabled.
>
> BitMap's destructor does not free the backing store because BitMaps are
> commonly passed by value. My suggested fix allocates these BitMaps on the
> VMThread's resource area (VMOperation::evaluate has a ResourceMark).
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8037958
> Webrev: http://cr.openjdk.java.net/~mgerdin/8037958/webrev.0

Looks good.

StefanK

>
> /Mikael