[aarch64-port-dev ] RFR: JDK-8131645 [ARM64] crash on Cavium when using G1

[Andrew Haley]

On 09/10/2015 02:15 PM, Eric Caspole wrote:
> Hi everybody,
> Could you review this fix?
> 
> https://bugs.openjdk.java.net/browse/JDK-8131645
> 
> Webrev:
> http://cr.openjdk.java.net/~ecaspole/JDK-8131645/00/webrev/
> 
> The problem was that without a store membar on the CodeRootSetTable 
> creation, readers could see invalid memory leading to an assert or 
> crash. This is more noticeable on ARM64 with relaxed memory semantics.
> Thanks Stefan K for noticing the exact spot for this fix.
> 
> This ran all night with the failing test with no crashes and passes JPRT.

Thanks.  We've been seeing crashes with G1, so I guess this might be
the same thing.

Andrew.