RFR(XXS): 8165014: Unaligned unsafe access should throw InternalError on Solaris

David Holmes david.holmes at oracle.com
Wed Aug 31 06:18:38 UTC 2016

Hi Martin,

On 30/08/2016 8:42 PM, Doerr, Martin wrote:
> Hi,
> as discussed in http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2016-August/020888.html,
> the signal handler on Solaris SPARC should throw a java.lang.InternalError when Unsafe accesses unaligned addresses.
> This is currently broken because the signal handler only accepts BUS_OBJERR which is not sufficient.
> Proposed fix:
> http://cr.openjdk.java.net/~mdoerr/8165014_sparcSIGBUS/webrev.00/
> Please review. I will also need a sponsor.

I can sponsor this for you.

I was unsure whether we should in fact cater for unaligned accesses, but 
causing InternalError to be thrown instead of crashing is somewhat cleaner.



> Best regards,
> Martin

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