(XS) RFR: 8146616: VM exit path throws fatal error: Thread holding lock at safepoint that vm can block on: BeforeExit_lock

Daniel D. Daugherty daniel.daugherty at oracle.com
Wed Feb 3 02:21:04 UTC 2016


Thumbs up!

Dan


On 2/2/16 7:13 PM, David Holmes wrote:
> bug: https://bugs.openjdk.java.net/browse/JDK-8146616
>
> webrev: http://cr.openjdk.java.net/~dholmes/8146616/webrev/
>
> We encountered a bug with the Solaris Studio 12u4 compiler that causes 
> a destructor not to be called when leaving a block, and so leaves a 
> system monitor locked. A workaround is to introduce an explicit local 
> scope:
>
> @@ -421,7 +421,10 @@
>        assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state");
>        return;
>      case BEFORE_EXIT_DONE:
> -      return;
> +      // need block to avoid SS compiler bug
> +      {
> +        return;
> +      }
>      }
>
> Thanks,
> David



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