RFR(XS): JDK-8030808 dtrace/hotspot/Monitors/Monitors001 fails in product builds on solaris-sparc

[Daniel D. Daugherty]

On 2/5/14 7:23 AM, Frederic Parain wrote:
> Greetings,
>
> Please review this small fix for bug 8030808.
> The bug is caused by a compiler bug preventing the
> hotspot:::monitor-waited DTrace probe to be fired
> on SPARC. After several failed attempts to fix
> the compiler behavior with #pragma and flags, I'm
> proposing this simple workaround.
>
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8030808
> Webrev:
> http://cr.openjdk.java.net/~fparain/8030808/webrev.00/


src/share/vm/runtime/synchronizer.hpp
     No comments.

src/share/vm/runtime/synchronizer.cpp
     Can you change this comment:

     389   /* This dummy call is in place to get around dtrace bug 
6254741.  Once
     390      that's fixed we can uncomment the following line and 
remove the call */

     to:

     389   // This dummy call is in place to get around dtrace bug 
6254741.  Once
     390   // that's fixed we can uncomment the following line, remove 
the call
           // and change this function back into a "void" func.

Thanks.

Dan



>
> The fix has been tested with the dtrace/hotspot test suite
> and the vm.quick testlist.
>
> Thanks,
>
> Fred
>