RFR(XS): 8193308: Disallow installing user signal handlers for SIGBUS on OSX

[David Holmes]

Looks good Robin! Thanks for getting to the bottom of this one!

Please update copyright years before pushing commiting.

Do you need a sponsor?

Thanks,
David

On 7/02/2018 1:19 AM, Robin Westberg wrote:
> Hi all,
> 
> Please review the following change to disallow installing user signal handlers for SIGBUS on OSX. On OSX, SIGBUS is used internally by the VM (where most other platforms only use SIGSEGV), and installing a user handler can lead to a deadlock.
> 
> Issue: https://bugs.openjdk.java.net/browse/JDK-8193308 <https://bugs.openjdk.java.net/browse/JDK-8193308>
> Webrev: http://cr.openjdk.java.net/~rwestberg/8193308/webrev.00/ <http://cr.openjdk.java.net/~rwestberg/8193308/webrev.00/>
> Testing: hs-tier1, hs-tier2
> 
> Best regards,
> Robin
>