Summary: When an entry is stolen, don't push it on the task queue but process it directly.
Reviewed-by: iveresov, ysr, jcoomes

Reviewed-by: iveresov, tonyp

Summary: Remove G1RemSet base class and StupidG1RemSet class; rename HRInto_G1RemSet to just G1RemSet.
Reviewed-by: ysr, tonyp

Reviewed-by: kvn, iveresov, jcoomes

Reviewed-by: iveresov, kvn, kamg

Summary: Set upper limit 256 for ObjectAlignmentInBytes value.
Reviewed-by: never, iveresov

Summary: Fix ciMethod::instructions_size() to return correct value
Reviewed-by: kvn, twisti

Reviewed-by: twisti, kvn, iveresov

Summary: Under certain circumstances a safepoint could happen between a JavaThread object being created and that object being added to the Java threads list. This could cause the active field of that thread's SATB queue to get out-of-sync with respect to the other Java threads. The solution is to activate the SATB queue, when necessary, before adding the thread to the Java threads list, not when the JavaThread object is created. The changeset also includes a small fix to rename the surrogate locker thread from "Surrogate Locker Thread (CMS)" to "Surrogate Locker Thread (Concurrent GC)" since it's also used in G1.
Reviewed-by: iveresov, ysr, johnc, jcoomes

Summary: Clear the concurrent marking "in progress" flag while the FullGCCount_lock is held. This avoids a race that can cause back to back System.gc() calls, when ExplicitGCInvokesConcurrent is enabled, to fail to initiate a marking cycle causing the requesting thread to hang.
Reviewed-by: tonyp, ysr

Summary: Concurrent collectors should expand the perm gen without a full STW GC, but possibly by triggering a concurrent collection. Temporary band-aid for G1 where no concurrent collection is kicked off since the perm gen is not collected concurrently.
Reviewed-by: johnc

Summary: Missing check for not empty worklist when puting memory node back on worklist and expecting address type update.
Reviewed-by: never

Summary: The workaround changes the scope of the variable
Reviewed-by: phh, ysr, kvn

Reviewed-by: ysr

Summary: adjusted profiling code generation to use the new ValueStack implementation; lowered optimization level for c1_LinearScan.cpp on solaris x64.
Reviewed-by: kvn, never

6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
Summary: Inserted missing yield(check)s in closures used during the work-stealing phase of parallel concurrent marking, a missing synchronous yield-request in the cms perm gen allocation path, and a terminator-terminator for the offer_termination invocation that monitors the yield status of the concurrent marking task. Elaborated some documentation comments and made some task queue termination loop flags configurable at start-up to aid debugging in the field.
Reviewed-by: jmasa, johnc, poonam

Summary: fixes build break
Reviewed-by: never, kvn

6987634: JSR 292 assert(start_bci() >= 0 && start_bci() < code_size()) failed: correct osr_bci argument
Reviewed-by: never, kvn

6942771: SEGV in ParScanThreadState::take_from_overflow_stack
Reviewed-by: apetrusenko, ysr, pbk

Summary: Re-enable use of the lock-free versions of region stack push() and pop() by recording aborted regions in a thread-local structure, which are then processed when scanning of the region stack restarts. The previous locking versions of these routines are retained for diagnostic purposes.
Reviewed-by: tonyp, ysr

Reviewed-by: roland, kvn, iveresov

Summary: Fixed NonTieredCompPolicy::compiler_count() to return correct thread count.
Reviewed-by: twisti, kvn

6986944: JSR 292 assert(caller_nm->is_method_handle_return(caller_frame.pc())) failed: must be MH call site
Reviewed-by: never, kvn

Summary: Minor fix to first line of template copyright files
Reviewed-by: ohair

Reviewed-by: kvn, twisti

Reviewed-by: kvn

Reviewed-by: kvn

6986270: guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception) fails
Summary: Propagate the compiler type of the deopting method to vframeArrayElement::unpack_on_stack()
Reviewed-by: jrose, never

Summary: Refine fix for 6561870 to only rebuild sa-jdi.jar when needed
Reviewed-by: never, ohair, coleenp

Summary: Naked oop in verificationType::is_reference_assignable_from()
Reviewed-by: never, kvn, coleenp