hg: jdk7/hotspot/hotspot: 6 new changesets

[y.s.ramakrishna at sun.com]

Changeset: 2dd52dea6d28
Author:    johnc
Date:      2010-01-12 14:56 -0800
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/2dd52dea6d28

6902115: G1:assert(ignore_max_completed||thread->is_Java_thread()||SafepointSynchronize::is_at_safepoint())
Summary: Remove invalid assert and mangle filler objects in TLABs that are being retired.
Reviewed-by: ysr, jmasa

! src/share/vm/gc_interface/collectedHeap.cpp
! src/share/vm/gc_interface/collectedHeap.hpp
! src/share/vm/memory/threadLocalAllocBuffer.cpp
! src/share/vm/memory/threadLocalAllocBuffer.inline.hpp

Changeset: 7b0e9cba0307
Author:    ysr
Date:      2010-01-13 15:26 -0800
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/7b0e9cba0307

6896647: card marks can be deferred too long
Summary: Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.
Reviewed-by: never, johnc

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp
! src/share/vm/gc_interface/collectedHeap.cpp
! src/share/vm/gc_interface/collectedHeap.hpp
! src/share/vm/memory/genCollectedHeap.cpp
! src/share/vm/memory/genCollectedHeap.hpp
! src/share/vm/opto/graphKit.cpp
! src/share/vm/opto/runtime.cpp
! src/share/vm/opto/runtime.hpp
! src/share/vm/runtime/globals.hpp
! src/share/vm/runtime/thread.cpp
! src/share/vm/runtime/vmStructs.cpp

Changeset: 0c1bf505f7a2
Author:    tonyp
Date:      2010-01-13 15:46 -0500
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/0c1bf505f7a2

6916652: G1: remove +UseG1GC from under experimental options
Summary: What the title says.
Reviewed-by: ysr, jmasa

! src/share/vm/runtime/globals.hpp

Changeset: 22e27cceb7d8
Author:    tonyp
Date:      2010-01-14 09:20 -0800
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/22e27cceb7d8

Merge

! src/share/vm/runtime/globals.hpp

Changeset: 09646c4656ca
Author:    johnc
Date:      2010-01-13 15:45 -0800
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/09646c4656ca

6915005: G1: Hang in PtrQueueSet::completed_buffers_list_length with gcl001
Summary: When enqueuing a completed PtrQueue buffer, cache a local pointer to the buffer and clear the field in the PtrQueue prior to unlocking the mutex referenced by the _lock field and pass the cached local value to the enqueuing routine. This will prevent the same completed buffer being enqueued multiple times, which causes the hang.
Reviewed-by: ysr

! src/share/vm/gc_implementation/g1/ptrQueue.cpp
- src/share/vm/gc_implementation/g1/ptrQueue.inline.hpp

Changeset: c4d722788ed6
Author:    ysr
Date:      2010-01-16 23:51 -0800
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/c4d722788ed6

Merge

- src/share/vm/gc_implementation/g1/ptrQueue.inline.hpp
! src/share/vm/memory/genCollectedHeap.cpp
! src/share/vm/runtime/globals.hpp