GCOld is broken after recent sh/jdk merge

[Aleksey Shipilev]

On 08/31/2018 09:37 AM, Aleksey Shipilev wrote:
> See example hs_errs here:
>   http://cr.openjdk.java.net/~shade/shenandoah/crashes/post-merge-20180831/
> 
> Happened in nightly 3 of 3 times, reproduces on my desktop. Did something change in reference
> handling we should fix up?

For the record, this is resolved by GCLAB fixes:
  http://mail.openjdk.java.net/pipermail/shenandoah-dev/2018-August/007291.html
  http://hg.openjdk.java.net/shenandoah/jdk/rev/04e4e56f61b1

-Aleksey