Reviewed-by: brutisso, johnc

7097053: G1: assert(da ? referent->is_oop() : referent->is_oop_or_null()) failed: referenceProcessor.cpp:1054
Summary: During remembered set scanning, the reference processor could discover a reference object whose referent was in the process of being copied and so may not be completely initialized. Do not perform reference discovery during remembered set scanning.
Reviewed-by: tonyp, ysr

7086533: G1: assert(!_g1->is_obj_dead(obj)): We should not be preserving dead objs: g1CollectedHeap.cpp:3835
Summary: Some objects may not be marked in the event of an evacuation failure in a partially young GC, during a marking cycle. Avoid this situation by not allowing partially young GCs during a marking cycle.
Reviewed-by: tonyp, ysr, brutisso

Summary: Added extern "C" to make it build with JDK6 compilers
Reviewed-by: jwilhelm, kvn

Summary: Fixed a few inconsistencies in the monitoring data, in particular when reported from jstat.
Reviewed-by: jmasa, brutisso, johnc

Summary: G1 now uses two reference processors - one is used by concurrent marking and the other is used by STW GCs (both full and incremental evacuation pauses). In an evacuation pause, the reference processor is embedded into the closures used to scan objects. Doing so causes causes reference objects to be 'discovered' by the reference processor. At the end of the evacuation pause, these discovered reference objects are processed - preserving (and copying) referent objects (and their reachable graphs) as appropriate.
Reviewed-by: ysr, jwilhelm, brutisso, stefank, tonyp

Reviewed-by: jcoomes, johnc

Summary: Cast HeapRegion::GrainBytes to size_t in output statement.
Reviewed-by: ysr, brutisso, pbk, tonyp

Summary: The desired min / max heap sizes are miscalculated at initialization when NewRatio is used. The changeset also includes an additional small change to turn a print statement into a warning.
Reviewed-by: johnc, jmasa, ysr, brutisso

Summary: Displays the elapsed time taken to perform reference processing during remark as part of the PrintGCDetails output.
Reviewed-by: ysr

Summary: Make sure the eden and survivor pools have "Space" in their name.
Reviewed-by: jmasa, ysr

Summary: As a result of the changes for 7080389, an evacuation failure during an initial mark pause may result in some root objects not being marked. Pass whether the caller is a root scanning closure into the evacuation failure handling code so that the thread that successfully forwards an object to itself also marks the object.
Reviewed-by: ysr, brutisso, tonyp

Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc

Reviewed-by: tonyp, never, phh, jmasa

Reviewed-by: johnc
Contributed-by: alejandro.murillo@oracle.com

Reviewed-by: jmasa, ysr, kvn

Reviewed-by: kvn

Summary: shared fix necessary for ARM/PPC
Reviewed-by: twisti, roland

Summary: ARM only, avoid assertion failures for huge constants generated by C1 shared code
Reviewed-by: never, vladidan

Summary: Fixed warnings which prevent building VM with old compilers.
Reviewed-by: never

Summary: Fix _numa_used_node_list array size specification
Reviewed-by: kvn, johnc, jmasa, ysr

Summary: Replace assert with check to delete MachTemp nodes only when they are really dead.
Reviewed-by: never

Summary: When refactoring the code for a previous fix, a condition was not correctly negated which prevents the G1 policy from adding the correct number of old regions to the CSet when the young gen size is fixed. The changeset also fixes a small syntactical issue in g1ErgoVerbose.hpp which is causing compiler warnings.
Reviewed-by: brutisso, ysr

Reviewed-by: kvn, twisti

Reviewed-by: kvn

Reviewed-by: jrose, twisti, kvn, coleenp

Reviewed-by: kvn, twisti

Reviewed-by: johnc
Contributed-by: alejandro.murillo@oracle.com

Summary: Revert changes which caused regression.
Reviewed-by: never

Reviewed-by: brutisso, ysr

Summary: Make G1 handle young gen size command line flags more consistently
Reviewed-by: tonyp, jwilhelm