johnc [Fri, 01 Oct 2010 18:23:16 -0700] rev 6766
6983311: G1: LoopTest hangs when run with -XX:+ExplicitInvokesConcurrent
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
ysr [Fri, 01 Oct 2010 16:12:54 -0700] rev 6765
6794422: Perm gen expansion policy for concurrent collectors
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
jcoomes [Thu, 30 Sep 2010 12:15:13 -0700] rev 6764
6988678: fatal error deadlock handling was unintentionally disabled
Reviewed-by: ysr
ysr [Wed, 29 Sep 2010 16:17:02 -0700] rev 6763
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
jcoomes [Tue, 28 Sep 2010 15:56:15 -0700] rev 6762
6423256: GC stacks should use a better data structure
6942771: SEGV in ParScanThreadState::take_from_overflow_stack
Reviewed-by: apetrusenko, ysr, pbk
johnc [Tue, 28 Sep 2010 09:51:37 -0700] rev 6761
6941395: G1: Use only lock-free versions of region stack push() and pop()
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
jcoomes [Wed, 08 Sep 2010 16:10:51 -0700] rev 6760
6983296: build sanity checks for jdk7 should require SS12u1
Reviewed-by: ohair
jmasa [Mon, 20 Sep 2010 14:38:38 -0700] rev 6759
6984287: Regularize how GC parallel workers are specified.
Summary: Associate number of GC workers with the workgang as opposed to the task.
Reviewed-by: johnc, ysr
kvn [Wed, 06 Oct 2010 14:18:32 -0700] rev 6758
Merge
never [Tue, 05 Oct 2010 17:38:40 -0700] rev 6757
6989736: fix mapfile warnings on solaris
Reviewed-by: kvn, iveresov, jcoomes
never [Tue, 05 Oct 2010 11:16:12 -0700] rev 6756
6988018: dtrace/hotspot/MethodInvocation/MethodInvocation002 crashes with client compiler
Reviewed-by: iveresov, kvn, kamg
kvn [Tue, 05 Oct 2010 08:57:20 -0700] rev 6755
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
Summary: Set upper limit 256 for ObjectAlignmentInBytes value.
Reviewed-by: never, iveresov
iveresov [Tue, 05 Oct 2010 00:19:21 -0700] rev 6754
6989368: Regression in scimark2.MonteCarlo in jdk7_b112 on Linux
Summary: Fix ciMethod::instructions_size() to return correct value
Reviewed-by: kvn, twisti
never [Mon, 04 Oct 2010 17:09:18 -0700] rev 6753
6968348: Byteswapped memory access can point to wrong location after JIT
Reviewed-by: twisti, kvn, iveresov
kvn [Thu, 30 Sep 2010 18:31:45 -0700] rev 6752
6916062: assert(_inserts <= _insert_limit,"hash table overflow") in NodeHash::hash_insert
Summary: Missing check for not empty worklist when puting memory node back on worklist and expecting address type update.
Reviewed-by: never